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Al Unser

Alfred Unser Sr. (May 29, 1939 – December 9, 2021) was an American professional race car driver renowned for his dominance in open-wheel racing, particularly as a four-time winner of the in 1970, 1971, 1978, and 1987, tying for the most victories at the time. Born in , into a prominent racing family that included his brothers , Louie, and —all accomplished racers—Al began his career in 1957 driving modified roadsters, midgets, and sprint cars before progressing to major events. Over a career spanning more than three decades, he secured 39 victories, ranking sixth all-time, and led a then-record 644 laps in the across 27 starts, the third-most participations in history. Unser's accolades extended beyond the Indy 500, including three national championships in 1970, 1983, and 1985, as well as victories in the Pikes Peak International Hill Climb in 1964 and 1965. In 1978, he achieved the rare "Triple Crown" of IndyCar by winning the Indianapolis 500, Pocono 500, and Ontario 500 in the same season, a feat that underscored his versatility and skill on ovals of varying lengths. His 1987 Indy 500 triumph at age 47 years and 360 days made him the oldest winner in race history, a record that stands today, and he remains the only driver whose brother (Bobby, three-time winner) and son (Al Unser Jr., two-time winner) also conquered the "500." Unser also competed successfully in other series, finishing fourth in his only Daytona 500 attempt in 1968 and winning a Can-Am race at Laguna Seca in 1980. Inducted into the Hall of Fame in 1986 and the in 1998, Unser's legacy as a from the Unser dynasty influenced generations of drivers, blending family tradition with individual excellence in American motorsport. After battling cancer for 17 years, he passed away in , survived by his wife and son Al Jr., leaving an indelible mark on history.

Early life and personal background

Childhood in Albuquerque

Al Unser was born on May 29, 1939, in , the youngest of four sons to parents Jerry Unser and Mary Craven Unser. His father, a skilled and racer, owned a garage on Route 66 near Nine-Mile Hill, where the family lived in a modest working-class environment. From an early age, Unser displayed a natural aptitude for mechanics, often assisting in the garage and learning to repair and maintain vehicles amid frequent visits from prominent drivers like Jim Rathmann and . Growing up surrounded by the sights and sounds of automobiles, Unser's childhood was steeped in the local culture of Albuquerque, where his family's passion for speed provided constant inspiration. He and his brothers, including Jerry Jr., Louie, and , spent much time at the , fostering Unser's hands-on understanding of engines and that would define his career. This environment not only honed his technical skills but also ignited his interest in , as he observed the of high-performance cars up close. Unser's initial forays into began as a young boy at Speedway Park, a local dirt track in Albuquerque, where he competed alongside his brother and even bested adult locals in amateur events. By 1957, at age 18, he transitioned to cars, starting with modified roadsters on dirt tracks and progressing to sprint cars and midgets in regional amateur races. For these early outings, Unser personally handled much of the mechanical preparation, drawing directly on the lessons from his father's garage to tune and maintain his vehicles. These foundational experiences at local venues laid the groundwork for his professional ascent, though details of the broader Unser family racing dynasty are explored elsewhere.

Family and racing heritage

The Unser family traces its roots to Basque heritage, with the family's Albuquerque, New Mexico, origins reflecting the resilience and mechanical aptitude often associated with Basque immigrants who settled in the American Southwest during the early 20th century. This cultural background fostered a strong work ethic and hands-on expertise with machinery, evident in the family's early involvement in operating a service station on Route 66, where young family members learned engine repair and vehicle maintenance that later translated to racing success. Al Unser was part of a prominent dynasty, the fourth son of Jerry Unser Sr. and Mary Catherine Craven, who relocated the family from Colorado Springs to Albuquerque in 1936. His siblings included older brothers , who became the first family member to compete at the in 1958 before his fatal 1959 practice crash; older brother Louie Unser (twin to Jerry Jr.), a skilled who served as chief crew member for both Jerry Jr. and Al during their early Indy 500 attempts and later became a respected engine builder; and brother , a three-time winner (1968, 1975, 1981) known for his dominance at Hill Climb with 13 victories. Louie, in particular, exemplified the family's behind-the-scenes support, qualifying Al for his 1965 Indy 500 debut while battling that forced his retirement from active racing in 1964. The family's multi-generational legacy extended to nephews, including Johnny Unser, son of Jerry Jr., who made five Indy 500 starts from 1996 to 2000, continuing the tradition of Unser participation at the Brickyard. Al himself fathered three children with first wife Wanda Jesperson—Al Unser Jr., who won the in 1992 and 1994; daughter Mary; and daughter , who tragically died in a 1982 accident—while the family's close-knit structure provided essential logistical support, such as crew assistance and travel coordination, during Al's racing endeavors. Al later married Karen Sue Barnes in 1977 but divorced in 1988; he then married Susan, who survived him.

Professional racing career

Early dirt track and USAC beginnings

Al Unser began his professional racing career in 1957 at the age of 18, competing on local dirt tracks in with modified roadsters, midgets, and sprint cars. Drawing on family support from his brothers who were already established racers, he quickly secured early victories in Southwest regional events, honing his skills on the challenging dirt surfaces that dominated the region's motorsport scene. By the early 1960s, Unser had expanded his success to prominent dirt track competitions, including multiple wins at the Hoosier Hundred sprint car event, which he captured four consecutive years in the early 1970s (1970–1973). He joined the (USAC) circuit in 1964, making his championship dirt car debut at the Hill Climb that year, where he claimed victory in a record time of 12 minutes 24.5 seconds aboard a Chevrolet-powered car. This triumph marked his first major national-level win and established him as a rising talent in USAC's sprint and dirt divisions, where he also earned Rookie of the Year honors in the stock car series by 1967. Unser's early career emphasized hands-on mechanical involvement, as he personally tuned engines and prepared his own vehicles, often adapting off-the-shelf components from his family's auto parts business to optimize performance on ovals. This self-reliant approach facilitated his transition to paved ovals in 1964, when he made his first USAC Champ Car start at the 200 in , qualifying competitively despite limited prior experience on . Though his initial paved outings were marked by mechanical challenges, such as a gearbox in one event, they laid the groundwork for his ascent in national championship racing.

Rise in IndyCar and first championships

Unser entered the USAC Championship Car series in 1964 with a debut at the Tony Bettenhausen 200 in Milwaukee, driving for promoter J.C. Agajanian, though his early appearances were sporadic as he balanced dirt track commitments. His breakthrough came in 1968 with his first national championship victory at the Nazareth 100 on the dirt oval, piloting a four-wheel-drive Ford-powered Lola for the Retzloff Racing Team; this win leveraged his dirt track expertise from regional series, enabling precise handling on loose surfaces. That season, Unser secured five total victories, including heat races at Indianapolis Raceway Park, signaling his rapid adaptation to the series' demands despite starting as an underdog against established stars. By 1970, Unser joined Vel's Racing and claimed his first USAC , the initial of his three major open-wheel titles, with a dominant performance of 10 wins across 18 races—a single-season record at the time. Driving the #2 Special, a rear-wheel-drive Colt-Ford chassis tuned by crew chief George Bignotti, he excelled through team strategies emphasizing quick pit stops and balanced setups for diverse ovals. At the , for instance, the car's setup allowed Unser to lead 190 laps and average 155.749 mph, showcasing superior and tire conservation that minimized wear during long runs. His consistency, with no finishes worse than fifth, clinched the title by 2,870 points over runner-up , outpacing rivals through reliable execution rather than sheer risk-taking. Unser's early 1970s run solidified his status, highlighted by intense rivalries with , the 1969 champion whose aggressive style contrasted Unser's methodical approach, and , whom Unser outmaneuvered in key battles via strategic fueling. In 1971, he mounted a near-championship challenge with five victories, including strong showings on pavement ovals, while adapting to the turbocharged engines that delivered up to 800 horsepower—requiring refined control and tweaks to manage the added on restarts and in traffic. Despite finishing fourth in points behind Joe Leonard due to the season's segmented scoring (national, , and dirt divisions), Unser's 1,909 points and podium consistency underscored his growing mastery of the evolving turbo era.

Indianapolis 500 achievements

1970 and 1971 victories

Al Unser secured his first victory in , driving the #2 Special for the Vel's Racing team. The car, a custom P.J. Colt chassis modified by chief mechanic George Bignotti and powered by a turbocharged engine, allowed Unser to claim the with a qualifying speed of 170.596 mph. The race unfolded under persistent rain threats, with dark clouds looming throughout the 200 laps and prompting officials to monitor weather closely, though no delays occurred. Unser led a dominant 190 laps, relinquishing the lead only briefly during three quick pit stops for and tires, where the team's efficient minimized time loss to under 20 seconds each. This approach proved decisive as mechanical issues sidelined favorites like , whose engine failed with 20 laps remaining while running second. Unser crossed the finish line 31.881 seconds ahead of second-place finisher in a McLaren-Offenhauser, averaging 155.749 for the victory—his first at Indy and a key step in his 1970 USAC season. Unser's brother , a two-time Indy winner himself, started eighth in and finished 11th after handling issues, adding a family dimension to the event as the Unser siblings competed together for the first time at the . Al later recalled the emotional weight of the win, noting his father's presence in the pits as a source of motivation amid the high-stakes atmosphere. Defending his title in 1971 with the same Vel's team and a similar Bignotti-modified P.J. Colt-Offenhauser entry, Unser qualified fifth at 174.622 mph, behind polesitter . The race was marred by chaos, including a dramatic pace car crash right after the start—driven by Eldon —who missed the braking point entering pit lane and crashed the into a photographers' stand, injuring several photographers and spectators but not affecting any race cars. Unser, starting conservatively, navigated the incidents unscathed, taking the lead for good on lap 117 after leaders like and Joe Leonard suffered mechanical failures. Strategic management was crucial in the accident-interrupted event, with Unser's optimizing loads and changes during five stops to maintain track position without over-stressing the components under USAC's strict rules. He led 103 of 200 laps, fending off Revson—who never led but closed late—to win by 22.01 seconds at an average speed of 157.735 mph, the fastest 500 to date. This back-to-back triumph made Unser the first driver since in 1939-1940 to win consecutive 500s, elevating his profile as a USAC title contender and solidifying the Unser family's racing dynasty. The victory coincided with Unser's 32nd birthday, a personal milestone celebrated with family amid the postwar-era field's intensity; his wife and young son Al Jr. were trackside, witnessing the moment that foreshadowed the next generation's involvement in .

1978 win and mid-career dominance

Following his back-to-back victories in 1970 and 1971, which contributed to his dominant 1970 season with a record-tying 10 wins, Al Unser maintained strong consistency throughout the mid-1970s in USAC Championship Car racing. Despite not securing another full-season title until 1983, Unser achieved multiple victories annually, including three wins in 1976 and key triumphs in 1978, demonstrating his adaptability amid evolving car designs and team affiliations. His total of over 15 USAC wins from 1972 to 1979 underscored his mid-career reliability, often competing against top Penske Racing drivers like and . Unser's 1978 season marked a pinnacle of this era, highlighted by his third Indianapolis 500 victory on May 28 at . Driving for Jim Hall's Racing team in the No. 2 T500-Cosworth DFX, a methanol-fueled car producing around 950 horsepower, Unser qualified fifth with a speed of 189.386 mph. The race operated under new USAC regulations that reduced pressure from 80 inches to 65 inches of mercury, aiming to curb speeds and enhance safety after the previous year's high-velocity incidents; this change leveled the field somewhat, favoring skilled drivers like Unser who excelled in and . During the 200-lap event, Unser led 85 laps, including decisive stretches in the second half after taking the lead for good on lap 117 following a intense duel with Danny Ongais in a Penske PC-7. Key passing maneuvers included overtaking Ongais on the inside during a late caution period and defending against Sneva's late charge, despite a pit stop mishap on lap 180 where Unser clipped a tire barrier, slightly damaging his front wing and affecting handling over the final 20 laps. He crossed the finish line just 0.249 miles ahead of Sneva, equivalent to about 8 seconds at race pace, securing the win in a time of 3 hours, 9 minutes, and 36 seconds for an average speed of 161.363 mph. This victory propelled Unser to an unprecedented sweep of USAC's "" of 500-mile races that year, adding wins at Pocono and , though he finished second in the overall USAC standings to Sneva by 122 points due to inconsistent results in shorter events. Unser's success with the T500, a conventional without advanced ground effects—unlike emerging designs in Formula 1—highlighted his versatility as turbo rules emphasized precise and overtaking under reduced power. His rivalries with Penske teammates intensified team switches and strategic adaptations, solidifying his reputation as a mid-career force in an era of tightening regulations and aerodynamic experimentation.

Later career and other racing ventures

1987 comeback and fourth victory

After winning the 1985 CART PPG IndyCar World Series championship, Al Unser Sr. transitioned to a part-time racing schedule in 1986, competing in select events for Team Penske while his son Al Unser Jr. emerged as a full-time contender. By early 1987, Unser, then 47 years old, had no initial plans to enter the Indianapolis 500, having stepped away from a full-season commitment amid the ongoing dominance of younger drivers in the CART series, which had solidified its split from USAC in 1979. However, when Penske driver Danny Ongais suffered severe injuries in a practice crash on May 7, team owner Roger Penske turned to Unser as a replacement, drawing on their successful prior collaboration that dated back to Unser's 1978 Indy win. Unser accepted the offer despite initial skepticism from observers about his age and the use of a year-old backup car that had been displayed in a Pennsylvania hotel lobby just weeks earlier. Penske opted to equip Unser with a reliable 1986 March 86C chassis powered by a Cosworth-Ford DFX , abandoning their troubled new PC-16 design after testing issues. Unser quickly adapted during limited practice sessions, qualifying 20th on with a four-lap average speed of 210.229 mph on May 17. The race on unfolded as a strategic battle, with Unser starting conservatively and methodically climbing positions through efficient pit stops under the guidance of Penske crew chief Don Miller. A pivotal late-race caution on lap 177, triggered by Kevin Cogan's crash in turn four, bunched the leaders and allowed Unser—running third behind and —to close the gap. On lap 182, Andretti's engine faltered due to a fuel pickup issue, handing Unser second place; five laps later, Unser assumed the lead as Guerrero pitted for a splash-and-go fueled by concerns over mileage in his March-Ilmor Chevrolet. Unser led the final 18 laps, employing a fuel-conservation strategy that preserved his advantage, ultimately winning by 4.496 seconds over Guerrero, who encountered a clutch malfunction during his final stop. The victory, completed at an average speed of 162.175 mph, marked Unser's record-tying fourth Indy 500 triumph—equaling —and established him as the oldest winner in race history at age 47. The comeback resonated deeply with Unser's family, as Al Jr. finished ninth in a separate Penske entry and later remarked, "It means everything to Dad," highlighting the emotional weight of the achievement amid the Unser racing dynasty's legacy. Unser's success underscored the strategic depth of Penske's operations and affirmed his enduring skill in the evolving CART landscape, where Ilmor-Chevrolet powerplants like Guerrero's were gaining prominence.

NASCAR, IROC, and international efforts

Unser ventured into stock car racing with the NASCAR Grand National and Winston Cup Series, making five starts between 1968 and 1986, all on road courses where his open-wheel experience proved advantageous. His debut came in the 1968 Motor Trend 500 at Riverside International Raceway, where he finished 6th driving a #3 Dodge for Rudy Hoerr. He achieved a 4th-place finish in the 1968 Daytona 500 in a #6 Dodge for Cotton Owens, leading one lap. In 1969, Unser finished 4th at Riverside in a #41 car. His later efforts included a 29th-place finish at Watkins Glen in 1986 in a #88 Pontiac for DiGard Racing and 20th at Riverside in a #50 Pontiac. In the (IROC) series, which pitted top drivers from various disciplines in identical cars, Unser competed semi-regularly from 1977 to 1985, earning four victories and the 1977-1978 championship. His IROC success underscored his versatile skills against NASCAR legends like and . Unser won IROC IV at in 1977, starting from the pole and leading the final laps to claim the checkered flag. He followed with a victory in IROC V at in 1978, outdueling Yarborough in a late-race battle, securing the season title with consistent top finishes. Additional wins came in IROC VI at Michigan in 1979 and at Riverside in 1985, where his road-course prowess shone, contributing to his reputation as one of the series' early all-around standouts. Unser's international and endurance efforts extended his career beyond American ovals, demonstrating cross-disciplinary talent. He entered the multiple times, achieving a career highlight with an overall victory in 1985 driving the #8 Henn's Swap Shop , shared with , , and ; the team covered 2,050 miles, fending off rivals in a dominant performance that marked Porsche's eighth straight win. His non-championship Formula 1 appearances included the 1971 Questor Grand Prix at , where he drove a T192-Chevrolet but retired after 16 laps due to engine failure, sampling European-style machinery amid a field of F1 stars. Unser also excelled at the , winning overall in 1964 aboard an Offenhauser-powered racer to set a record time of 12:24.5 and breaking brother Bobby's streak, then repeating in 1965; he returned for additional runs through the 1980s, leveraging family heritage on the 12.42-mile mountain course to hone dirt-track precision that informed his dominance.

Retirement and later years

Post-racing contributions

After retiring from competitive driving at the end of the 1993 season, Al Unser Sr. announced his retirement on May 17, 1994, following a failed attempt to qualify for his 28th start. Unser also served as a television commentator for broadcasts in the mid-1990s. In his post-racing years, Unser became a celebrity advocate for boating safety with the U.S. , drawing from a personal near-fatal incident on his boat in 1998. He promoted awareness of hazards on , emphasizing prevention measures like proper and detector use to avoid similar accidents, leveraging his experience to educate the public on preventable risks. Unser's influence extended through the Unser family dynasty in motorsports, with his son continuing the legacy as a two-time Indianapolis 500 winner.

Health challenges and death

In the 1990s, Unser sustained significant injuries from racing crashes that contributed to his decision to retire. During practice for the 1990 Marlboro 500 at , he suffered a broken collarbone, fractured right , and multiple rib fractures after his car hit the turn three wall and flipped. These injuries sidelined him for the remainder of the season and exacerbated long-term physical wear from decades of high-speed competition, prompting his full from professional driving in May 1994 at age 54. Unser faced his most profound health challenge with a of in 2004. Over the next 17 years, Unser endured ongoing treatment while projecting resilience, often crediting his family's support and faith for sustaining him through the illness. Unser died on December 9, 2021, at age 82, at his ranch in , with his wife Susan by his side, after his prolonged fight with cancer. The and community issued tributes honoring his four Indy 500 victories and Unser family legacy, with IMS president J. Douglas Boles stating, "Al Unser Sr. was one of the greatest talents behind the wheel that this sport has ever seen." A public celebration of life was held on , 2022—Indy 500 race day—at the Unser Racing Museum in , drawing family, fans, and racing figures to commemorate his life. He was buried in Sunset Memorial Park in .

Awards and honors

Inductions into halls of fame

Al Unser's remarkable career, marked by four victories and three USAC national championships, earned him numerous inductions into prestigious halls of fame, each recognizing different facets of his contributions to motorsports. In 1986, Unser was inducted into the Hall of Fame, an honor that highlighted his dominance at the Brickyard, including back-to-back wins in 1970 and 1971 as well as his 1978 and 1987 triumphs. The ceremony featured a bronze plaque installed in the Hall of Fame Museum, depicting Unser in his racing gear and noting his record as one of the event's most accomplished drivers; during the event, he reflected on the family legacy, crediting his brothers and for inspiring his path from dirt tracks to Indy glory. Unser's induction into the Motorsports Hall of Fame of America occurred in 1991 in the Open Wheel category, celebrating his overall impact on American open-wheel racing through 39 USAC/CART victories and his role in elevating the sport's profile during the 1970s and 1980s. This accolade underscored his versatility, from sprint car roots to championship seasons, and positioned him alongside racing icons like his brother , who was inducted in 1994. The welcomed Unser in its 1998 class, specifically honoring him as one of only three drivers—alongside and —to claim four victories, a feat that symbolized his enduring excellence and resilience, particularly his 1987 comeback win at age 47. The induction ceremony in , included tributes to his 644 laps led at Indy, then the all-time record, and Unser used his acceptance speech to emphasize the Unser family's multi-generational commitment to racing. Reflecting his early dirt track foundations, Unser was inducted into the USAC Hall of Fame in 2013 as part of a class that included fellow Indy winners like , acknowledging his 48 USAC National Championship wins and pioneering sprint car successes that laid the groundwork for his IndyCar stardom. This recognition highlighted the grit developed on Southwestern dirt ovals, where the Unser siblings honed their skills before national prominence. In 2020, Unser joined the Hall of Fame, commemorating his 1964 and 1965 Open Wheel class victories on the challenging 14,110-foot course, which showcased his adaptability beyond oval racing and added to his legacy of multifaceted excellence. The virtual ceremony due to the still featured family members sharing stories of his early hill climb exploits as a teenager. In 2025, Unser was posthumously inducted as part of the Unser Family into the Stock Car/Motorsports Hall of Fame's Heritage Class, honoring the family's collective nine victories and broader contributions to American motorsports. The induction ceremony occurred on March 13, 2025, in , .

Lifetime achievement recognitions

Al Unser secured three national championships during his career, claiming the USAC title in 1970 after winning 10 races, including the , and later capturing championships in 1983 and 1985. At the 1985 annual banquet in , he received the National Champion Trophy for his third career title, along with the Honor for earning the most points across the season's three 500-mile races at , , and Pocono, and the "Yes You Can" Award for his perseverance as a substitute for the Penske team. Unser was recognized as Driver of the Year in 1970 for his dominant championship season and again in 1978 following his sweep of the USAC of 500-mile races. That same year, he won the IROC championship, defeating a field of top drivers from various motorsports disciplines in the invitational series. In 1987, Unser's fourth victory at age 47 years and 360 days established him as the oldest winner in the race's history, a record that stands today. Following his death on December 9, 2021, the city of Albuquerque held a public celebration of life for Unser on May 29, 2022—his would-be 83rd birthday and the date of that year's —honoring his roots as a and legend.

Motorsports career results

USAC and IndyCar statistics

Al Unser amassed 39 victories in USAC and / competition from 1963 to 1994, ranking third all-time behind A.J. Foyt's 67 and Mario Andretti's 52. He secured 27 positions and led over 6,000 laps in total, with notable records for laps led in non-Indy 500 events such as the Pocono 500. Unser claimed three national championships, beginning with the 1970 USAC title after a dominant season with 10 wins across oval, road, and dirt tracks, achieving a win rate exceeding 50% in championship events. In 1978, under USAC, he recorded five victories, including a sweep of the prestigious 500-mile (Indianapolis 500, Pocono 500, and California 500), though he finished second in points standings with 10 finishes. Transitioning to the CART era in 1979 amid the USAC-CART split, Unser adapted seamlessly, powering Cosworth-powered cars to consistent results before shifting to in 1983. His 1983 CART season highlighted strategic prowess, yielding three wins (Portland, Michigan 500, and Cleveland) in 13 races for a 23% win rate, complemented by seven podiums to clinch the championship by 40 points over Teo Fabi. In total, Unser notched 10 CART victories from 1979 to 1994, emphasizing reliability over volume in an era of intense competition. Early in his USAC tenure, Unser relied on reliable engines, securing 15 wins with Vel's Racing in the late and early , including his breakthrough season with five victories and multiple podiums. With from 1983 onward, he added four Champ Car wins using and Chevrolet powerplants, contributing to two titles and underscoring his versatility across engine types and team dynamics. His four triumphs bolster these aggregates but are detailed separately.
SeasonSeriesWinsPodiumsChampionship PositionNotable Achievements
1968USAC584thFirst Champ Car victory at ; established consistency with power.
1970USAC10121stRecord-tying season wins; pole at Indianapolis 500.
1978USAC5102nd sweep; Driver of the Year honors.
1983371st, , victories; Penske debut season.

Indianapolis 500 complete record

Al Unser competed in the a total of 27 times from 1965 to 1993, securing four victories in 1970, 1971, 1978, and 1987, along with 11 finishes (three seconds and four thirds). His 27 starts rank third all-time, behind only (35) and (29), and he remains one of only four drivers to win the race four times. Unser led a total of 644 laps across his starts, a mark that held the all-time record until surpassed by in 2022 and currently ranks second. Unser's Indianapolis 500 results demonstrate his consistency and longevity, with 18 finishes inside the top 10 and only six retirements due to mechanical issues or accidents. He earned one pole position in 1970 and qualified in the top 10 15 times. His career at the Brickyard spanned 29 years, reflecting his adaptability across engine eras from Ford to Cosworth and Offenhauser.
YearFinishStartCar Num.EntrantMake/ModelQual. Speed (mph)StatusLapsLaps LedWinnings
1993122380King MotorsportsLola/Chevrolet Indy C217.453Running19915$194,870
199232227Team MenardLola/Buick223.744Running2004$368,533
1990133040Patrick RacingMarch/Alfa Romeo212.087Running1860$136,387
198924225Penske RacingPenske/Chevrolet Indy223.471Clutch680$132,903
1988331Penske RacingPenske/Chevrolet Indy215.27Running19912$228,903
198712025Penske RacingMarch/Cosworth207.423Running20018$526,763
198622511Penske CarsPenske/Ilmor212.295Vibration1490$81,563
19854711Penske CarsMarch/Cosworth210.523Running1990$102,533
19843102Penske Cars, LtdMarch/Cosworth204.441Running1980$117,416
1983277Penske Cars, LtdPenske/Cosworth201.954Running20061$179,086
198251610Longhorn Racing, IncLonghorn/Cosworth195.567Running1970$60,326
198117988Bobby HillinLonghorn/Cosworth192.719Running1660$31,600
19802795Bobby HillinLonghorn/Cosworth186.442Cylinder330$25,151
19792232Chaparral Racing, LtdChaparral/Cosworth192.503Transmission10485$39,646
1978152Chaparral Racing, LtdLola/Cosworth196.474Running200121$290,364
19773321Vel's Parnelli Jones RacingParnelli/Cosworth195.95Running19917$67,232
19767421Vel's Parnelli Jones RacingParnelli/Cosworth186.258Running1010$27,442
197516114Vel's Parnelli JonesEagle/Offy185.452Rod1570$18,300
1974182615Vel's Parnelli Jones RacingEagle/Offy183.889Valve1310$17,492
19732084Vel's Parnelli Jones RacingParnelli/Offy194.879Piston7518$20,628
19722194Vel's Parnelli Jones RacingParnelli/Offy183.617Running2000$95,258
1971151Vel's Parnelli Jones FordP.J. Colt/Ford174.622Running200103$238,454
1970112Vel's Parnelli Jones FordP.J. Colt/Ford170.221Running200190$271,698
196826624Retzloff Racing TeamLola/Ford167.069Accident400$10,120
1967295Mecom Racing EnterprisesLola/Ford164.594Running1980$67,127
1966122318STP Division, StudebakerLotus/Ford162.272Accident1610$14,965
196593245Ansted-Thompson RacingLola/Ford154.44Running1960$14,416
Unser made his Indianapolis 500 debut as a in , starting 32nd in a Lola-Ford and finishing ninth after completing 196 laps. He skipped the 1969 race but returned strongly, winning his first two editions in 1970 and 1971 while leading a combined 293 laps. His 1978 victory came amid a fuel-shortage controversy in the race, where he led 121 laps in a ground-effects Lola-Cosworth. Unser's fourth and final win in 1987 marked a dramatic comeback at age 47, starting 20th in a backup March-Cosworth for Penske Racing and leading the final 25 laps to win by 4.5 seconds over at an average speed of 162.175 mph. This triumph tied A. J. Foyt's record for most Indy 500 victories and established Unser as the oldest winner in race history, a mark he held until Juan Pablo Montoya's 2015 success. He concluded his Indy 500 career in 1993 with a 12th-place finish for King Motorsports, starting 23rd and leading 15 laps in a Lola-Chevrolet before settling one lap down.

Other series participations

Unser made five starts in the across three seasons (1968, 1969, and 1986), achieving no wins but recording three top-10 finishes and two top-5 results, with his career-best placements of fourth coming at the 1968 and the 1969 Motor Trend 500 at . His limited participation in yielded modest earnings, totaling approximately $10,000 across those outings, reflecting his primary focus on open-wheel competition. In the (IROC) series, Unser was a standout performer, competing in over 20 events from 1977 to 1993 and earning three race victories while clinching the 1978 season championship. His successes included strong showings at high-profile venues like , where he notched multiple top-5 finishes, contributing to a total of 12 such results in the format that pitted top drivers from various disciplines against one another in identical cars. Unser's IROC tenure highlighted his versatility, as he adapted quickly to the series' emphasis on driver skill over equipment differences, leading to consistent contention in the points standings during the late 1970s. Beyond major series, Unser ventured into endurance and hill climb events, showcasing his adaptability across formats. At the , he secured an overall victory in 1985 driving a for Henn's Swap Shop Racing, teaming with , , and to cover 684 laps at an average speed exceeding 110 mph; he also claimed three class wins in GTP machinery during the 1980s, with a notable third-place overall finish in 1978 before a high-speed crash ended his run. On the , Unser triumphed twice, in 1964 and 1965, breaking his brother Bobby's streak with his debut win in 1964 and leveraging the demanding 12.42-mile course to demonstrate early prowess in unlimited-class vehicles. Additionally, he made a single appearance in a non-championship event in 1968, retiring due to mechanical issues after starting from midfield.

References

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    Al Unser - Driver Stats - Indianapolis Motor Speedway
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    Dec 10, 2021 · Unser was inducted into the Indianapolis Motor Speedway Hall of Fame in 1986 and the International Motorsports Hall of Fame in 1998. His ...
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    Dec 9, 2021 · Born May 29, 1939 to Jerry and Mary Craven Unser, Al was the youngest of 4 boys seemingly destined to make their marks in automobile racing.Missing: early | Show results with:early
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    ESPN Classic - Al Unser Sr. had race savvy
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