Grand Prix of St. Petersburg
The Firestone Grand Prix of St. Petersburg is an annual motorsports festival held on a 1.8-mile (2.9 km), 14-turn street circuit in downtown St. Petersburg, Florida, that incorporates public streets and a portion of the Albert Whitted Airport runway.[1] It serves as the season-opening race for the NTT IndyCar Series, North America's premier open-wheel racing championship, and features a weekend of competitions including the INDY NXT by Firestone series, IMSA WeatherTech SportsCar Championship events, and support races.[2][3] The event, known for its scenic waterfront setting and family-friendly atmosphere, attracts over 150,000 spectators annually and has been a staple of the IndyCar calendar since 2008.[4] The race traces its roots to 2003, when it debuted as a Champ Car World Series event won by Paul Tracy, though no race occurred in 2004; the modern iteration began in 2005 with Dan Wheldon taking victory in what would become the Grand Prix of St. Petersburg.[5] Following the 2007 merger of Champ Car and the IndyCar Series, the event transitioned fully to IndyCar in 2008, with Graham Rahal becoming the youngest winner in IndyCar history at age 19.[5] Firestone has been the title sponsor since 2014, marking the 12th consecutive season as title sponsor in 2025, aligning with their role as the exclusive tire supplier for the series.[6] Notable aspects include its status as a predictor of championship success—five winners of the Grand Prix of St. Petersburg have gone on to claim the IndyCar title in the same year, including Wheldon in 2005 and Alex Palou in 2025—and its evolution into a multi-series extravaganza that boosts local tourism and economy.[7][5] The 2025 edition, held on March 2, saw Palou secure victory for Chip Ganassi Racing, continuing the event's tradition of high-stakes, close racing on the challenging layout with five left turns and nine rights.[5][8]Circuit
Layout and Characteristics
The Firestone Grand Prix of St. Petersburg is held on a 1.8-mile (2.9 km), 14-turn temporary street circuit that winds through downtown St. Petersburg, Florida, incorporating public streets around Pioneer Park and the Duke Energy Center for the Arts, as well as a section of the runway at Albert Whitted Airport.[9] The layout features five left-hand turns and nine right-hand turns, creating a predominantly clockwise flow that challenges drivers with tight urban corners and extended straights.[9] The circuit's surface consists primarily of asphalt from the city streets combined with concrete sections along the airport runway, providing a mix of grip levels that teams must optimize for during setup.[10] The track width varies from a minimum of 26 feet to a maximum of 63 feet, averaging around 40 feet, which influences racing lines and overtaking opportunities in narrower sections.[11] A notable feature is the 2,350-foot (0.4-mile) front straight along the airport runway, which begins after the high-speed Turn 3—a fast left-hander that transitions drivers onto the smoother concrete surface for high-speed runs and heavy braking into Turn 4.[11] Turn 1 stands out as a tight 90-degree right-hander immediately after the start/finish line, demanding precise throttle control to avoid curbs and set up for the subsequent quick left at Turn 2.[12] Safety modifications for IndyCar standards include extensive tire barriers—over 12,000 tires bound with reinforced rubber belts—positioned along the entire circuit to absorb impacts, alongside 18,000 feet of steel-reinforced concrete blocks forming protective walls in high-risk areas.[13] Limited runoff areas are supplemented by these barriers and fencing, with the airport section offering slightly more space due to its open layout, though the urban environment requires careful placement to minimize risks on public infrastructure.[13]Development and Modifications
The Grand Prix of St. Petersburg circuit was initially developed in 2003 by renowned track designer Tony Cotman of NZR Consulting, who adapted a combination of downtown streets and a section of the Albert Whitted Airport runway to form a 1.8-mile, 14-turn temporary street course for the Champ Car World Series.[14][15] This layout incorporated the airport's runway as a high-speed straight, blending urban and airfield elements to create a challenging hybrid venue that emphasized braking zones and technical corners.[16] When the event transitioned to the IndyCar Series in 2005, modifications were introduced to accommodate the series' cars.[17] Following the 2007 merger of Champ Car and IndyCar, further adaptations were made to the circuit to align with IndyCar's standards, including the installation of additional tire barriers around high-risk areas.[18] These changes prioritized driver safety and raceability on the street course, reflecting broader series-wide efforts to mitigate the unique hazards of temporary urban tracks.[19] In 2017, the circuit underwent a significant reconfiguration after incidents during practice sessions, with Turn 3 modified by moving a wall inward and adding high kerbs to narrow the apex and discourage excessive speed.[20]Event Overview
Race Format and Schedule
The Firestone Grand Prix of St. Petersburg features a main NTT IndyCar Series race contested over 100 laps on the 1.8-mile street circuit, totaling approximately 180 miles.[21] This distance typically results in a race duration of 1.5 to 2 hours, positioning it as the season-opening event with high-stakes action from the start.[9] Qualifying for the race follows the standard IndyCar format for road and street courses. The 27-car field is divided into two groups based on the previous race's points standings (or random draw for the season opener). Each group receives 25 minutes to complete their fastest two consecutive laps in Segment 1. The top six from each group advance to the 20-minute Fast 12 session, where they set their fastest two consecutive laps; the top six from Fast 12 proceed to the 10-minute Fast Six to determine the pole position and front-row starting spots.[22] The weekend schedule unfolds over four days, typically from Thursday through Sunday in late February or early March, incorporating practice, qualifying, and the race alongside support events.[23] Practice sessions for the IndyCar cars occur on Friday and Saturday mornings, allowing teams to adapt to the temporary street layout; qualifying takes place Saturday afternoon, followed by the 100-lap race on Sunday at noon ET.[24] During the race, teams generally plan for 2 to 4 pit stops to service fuel and tires, given the circuit's demanding layout and the approximate 50-lap fuel window per stint.[25] Pit stops must adhere to strict crew limits, with a maximum of seven members over the wall, including four tire changers, one fueler, and one airjack operator, all operating under a 45 mph speed limit in the pit lane.[26] To aid overtaking on the tight street course, drivers can activate push-to-pass, which provides a power boost limited to 15 seconds per activation and a total of 150 seconds per race.[26] The event receives live television coverage on FOX Sports starting in 2025, with streaming available via the FOX Sports app.[27] Caution periods, signaled by yellow flags, neutralize the race clock and bunch the field behind the pace car, often creating strategic opportunities during restarts.[22]Attendance and Economic Impact
The Firestone Grand Prix of St. Petersburg typically draws over 150,000 fans across the three-day weekend, establishing it as one of IndyCar's premier events in terms of spectator turnout. Attendance peaked in recent years, with estimates exceeding 200,000 in 2022, while the 2023 event set a record that was surpassed by a 10% increase in 2024. For 2025, officials reported an estimated 165,000 attendees, reflecting sustained popularity despite post-hurricane recovery efforts in the region.[28][29][30] The event generates significant economic contributions to St. Petersburg, injecting approximately $50-60 million annually into the local economy through tourism, hotel bookings, and vendor sales. In 2023, the direct economic impact reached $61 million, including $31 million in direct spending that benefited hotels, restaurants, and retail outlets. The 2025 edition was projected to exceed $60 million, with some estimates reaching $66 million, providing a vital boost to businesses recovering from natural disasters and highlighting the race's role in stimulating short-term economic activity. This influx supports waterfront establishments, such as restaurants along the downtown bayfront, which see heightened patronage from out-of-town visitors during the festival-like atmosphere.[31][32][33] Community involvement enhances the event's accessibility and appeal, featuring free grandstand viewing on Fridays to encourage broad participation, dedicated family zones for younger attendees, and integration with local festivals including live music stages that complement the racing action. These elements foster a welcoming environment, drawing families and promoting St. Petersburg's vibrant cultural scene alongside the motorsport.[34][35] Sponsorship plays a key role in the event's scale, with Firestone serving as title sponsor since 2014 after being a partner since 2005, while RP Funding has acted as presenting sponsor since 2021. These partnerships underscore the race's commercial viability and contribute to its production quality and promotion.[6][36] Since transitioning to the IndyCar Series in 2008, the Grand Prix has experienced notable growth in attendance, with a roughly 20% increase in the years following due to the series' stability and enhanced marketing. This upward trend has amplified its economic footprint on local businesses, solidifying the event as a cornerstone of St. Petersburg's tourism calendar.[28][29]History
Origins and Pre-IndyCar Era
The Grand Prix of St. Petersburg originated in 1985 as a sports car racing event organized by the Sports Car Club of America (SCCA), featuring the Trans-Am Series and Can-Am Challenge on a 2-mile temporary street circuit winding through the downtown bayfront area.[16] This inaugural race marked the city's entry into professional motorsport, drawing crowds to the waterfront with high-speed action amid urban landmarks. Willy T. Ribbs claimed victory in the Trans-Am event, while Lou Sell triumphed in the Can-Am race, highlighting the event's focus on production-based and open-wheel sports cars.[37] Despite initial financial losses estimated at $2.3 million, the race established a foundation for annual bayfront racing.[38] From 1986 to 1990, the Grand Prix continued as an annual SCCA Trans-Am headliner, with the circuit evolving slightly to incorporate more of the pier approach for added length and challenge.[16] Notable winners included Pete Halsmer in 1986, Scott Pruett in 1987, Walter Roehrl in 1988, Irv Hoerr in 1989, and Chris Kneifel in 1990, reflecting the series' competitive depth in silhouette racing cars.[38] The event gained profitability by 1987 under director Harold J. Kelley but faced growing logistical hurdles, including a fatal crash involving Jim Fitzgerald in 1987 and increasing complaints from residents and businesses about noise, traffic disruptions, and safety concerns.[38] These issues, compounded by competition from the nearby Tampa World Challenge, led to the event's discontinuation after 1990.[38] The 1990s brought a hiatus marked by unsuccessful revival efforts amid ongoing urban development in the bayfront district, where proposals to integrate the adjacent Albert Whitted Airport runway for a hybrid layout were discussed but not realized at the time.[38] A short-lived resurgence occurred in 1996 and 1997 as the Florida Grand Prix of St. Petersburg, shifting to a 1.6-mile course around Tropicana Field and again featuring Trans-Am racing, which attracted 76,000 and 74,000 spectators respectively, with wins by Ron Fellows and Tommy Kendall.[38] However, the loss of title sponsor Kash n' Karry prompted International Management Group to cancel plans for 1998, returning the city to dormancy.[38] In 2002, persistent advocacy by local promoter Tom Begley and St. Petersburg city officials culminated in a partnership with the Champ Car World Series (formerly CART) to revive the Grand Prix, aiming to elevate the event with open-wheel racing on a street-airport hybrid circuit that leveraged the airport runway for high-speed sections.[39] Preparations for the 2003 debut included rigorous safety enhancements to meet FIA Grade 2 standards, ensuring suitability for international open-wheel competition, along with initial shakedown tests using support series vehicles to validate the layout's barriers, runoff areas, and pavement integrity.[16]Champ Car Era
The Champ Car Era of the Grand Prix of St. Petersburg was limited to a single edition in 2003, serving as the season-opening event for the newly rebranded Champ Car World Series following the bankruptcy of Championship Auto Racing Teams (CART) earlier that year. Held on February 23, the inaugural race featured a 19-car field competing on a 1.67-mile street circuit that incorporated downtown St. Petersburg streets and a portion of the Albert Whitted Airport runway. Paul Tracy of Forsythe Racing secured the victory, completing 105 laps in 2 hours, 4 minutes, and 28.904 seconds, marking his 20th career win and the start of a three-race winning streak that propelled him to the 2003 drivers' championship.[40][41][42] The event highlighted the Champ Car World Series' emphasis on international road and street course racing, with occasional oval alternatives like California Speedway to broaden appeal, though the series primarily showcased high-performance machinery on technical circuits. All entries utilized the Lola B02/00 chassis powered by the turbocharged 2.65-liter Ford-Cosworth XFE V8 engine, capable of over 700 horsepower under race boost limits, emphasizing close competition and driver skill on varied layouts. The St. Petersburg race established the event as a marquee opener, drawing positive reviews for its vibrant urban atmosphere despite the series' ongoing financial reorganization under new ownership by Open-Wheel Racing Series Inc.[43][44][45] Organizing the race presented significant challenges inherent to street circuits in a densely populated city, including extensive temporary barriers, traffic rerouting, and coordination with local authorities to minimize disruptions to residents and businesses. The layout's mix of tight hairpins, medium-speed corners, and a long straight along the waterfront demanded precise setup and safety measures, with no major incidents reported during the event. However, Champ Car's broader instability—stemming from the CART collapse and reduced sponsorship—limited expansion; a planned 2004 edition was canceled due to unresolved logistical agreements with the city and escalating costs.[16][46][47] This solitary Champ Car outing underscored the series' resilience amid turmoil, paving the way for the event's continuation under different sanctioning in subsequent years.IndyCar Era
The IndyCar Series era at the Grand Prix of St. Petersburg began in 2005 as the series' first street circuit race, with Dan Wheldon winning for Andretti Green Racing on April 3.[48] Hélio Castroneves followed with consecutive victories in 2006 and 2007 for Team Penske, both held on April 2 and April 1 respectively.[49][50] The 2008 edition, following the merger of the rival Champ Car and Indy Racing League series which unified American open-wheel racing under a single banner, saw Graham Rahal secure victory in his series debut for Newman/Haas/Lanigan Racing on April 6, becoming the youngest winner in IndyCar history at age 19. This race marked a symbolic start to the unified era, drawing strong attendance as fans embraced the consolidated series, with the event benefiting from its status as a key fixture post-merger.[51][52][53] Throughout the 2010s, the event solidified its position as a premier street circuit race, showcasing competitive racing and driver dominance. Hélio Castroneves claimed a standout victory in 2012, marking his third win at St. Petersburg (2006, 2007, and 2012) and honoring the late Dan Wheldon by stopping at Turn 10 during his celebration.[54][55][9] The decade saw varied winners, including repeat successes by drivers like Will Power (2010 and 2014), contributing to the race's reputation for intense battles on the 1.8-mile, 14-turn layout. Attendance grew steadily, reflecting the series' stability and the event's appeal as a season highlight.[54][55][9] The COVID-19 pandemic disrupted the schedule in 2020 and 2021, with the 2020 edition postponed from March to October 25 due to health concerns, where Josef Newgarden triumphed. In 2021, the race was rescheduled from March 7 to April 25, serving as the season opener under enhanced safety protocols, though it remained a single event rather than a doubleheader. These adaptations ensured continuity amid global challenges, maintaining the race's role in launching the calendar.[56][57][58] In recent years, the event has continued to evolve, with Pato O'Ward declared the 2024 winner after Josef Newgarden's initial victory was disqualified for a push-to-pass system violation. Alex Palou captured the 2025 edition on March 2, extending Chip Ganassi Racing's strong performance on street courses during the hybrid engine era, which debuted fully in mid-2024 and influenced energy deployment strategies. Since 2009, the race has consistently served as the NTT IndyCar Series season opener (with the 2021 postponement as a minor exception), reaching 21 editions by 2025 and underscoring its enduring prominence.[59][60][61][62][53]Results and Records
Race Winners
The Firestone Grand Prix of St. Petersburg has crowned 16 different winners across its 22 editions since 2003 (with no race in 2004 due to hurricane threats and scheduling issues), showcasing intense competition on the 1.8-mile street circuit. Helio Castroneves holds the record for most individual victories with three (2006, 2007, 2012), while Team Penske dominates with 12 team wins, including multiple 1-2 finishes.[5]| Year | Winner | Team | Series | Car Count | Weather | Margin of Victory | Average Speed (mph) | Notes |
|---|---|---|---|---|---|---|---|---|
| 2003 | Paul Tracy | Forsythe Championship Racing Team | Champ Car | 19 | Dry | 12.135 seconds (over Michel Jourdain Jr.) | 94.5 | Inaugural race; Tracy led 95 of 105 laps in a dominant performance.[63] |
| 2005 | Dan Wheldon | Andretti Green Racing | IndyCar | 18 | Dry | 0.5415 seconds (over Tony Kanaan) | 95.472 | First IndyCar edition; 1-2-3-4 finish for Andretti Green. |
| 2006 | Helio Castroneves | Team Penske | IndyCar | 18 | Dry | 0.0403 seconds (over Dan Wheldon) | 95.609 | Castroneves edged Wheldon in a thrilling photo finish after late cautions. |
| 2007 | Helio Castroneves | Team Penske | IndyCar | 20 | Rain | 0.0483 seconds (over Dan Wheldon) | 89.166 | Back-to-back win for Castroneves in wet conditions; Wheldon led most laps but faded. |
| 2008 | Graham Rahal | Newman/Haas/Lanigan Racing | IndyCar | 20 | Dry | 0.8182 seconds (over Ryan Briscoe) | 92.346 | Rahal, age 19, became the youngest IndyCar winner in series history. |
| 2009 | Ryan Briscoe | Team Penske | IndyCar | 22 | Dry | 0.5826 seconds (over Ryan Hunter-Reay) | 93.418 | Briscoe survived a late red flag to secure Penske's fourth straight win. |
| 2010 | Will Power | Team Penske | IndyCar | 24 | Dry | 0.7275 seconds (over Bruno Junqueira) | 93.457 | Power started on pole and led 71 laps for his first St. Pete victory. |
| 2011 | Ryan Briscoe | Team Penske | IndyCar | 24 | Dry | 2.899 seconds (over Will Power) | 88.549 | Briscoe overcame a spin to win amid multiple cautions. |
| 2012 | Helio Castroneves | Team Penske | IndyCar | 25 | Dry | 3.347 seconds (over Ryan Briscoe) | 92.813 | Castroneves' third win; all-Penske podium highlighted team strength. |
| 2013 | James Hinchcliffe | Andretti Autosport | IndyCar | 25 | Dry | 1.0664 seconds (over Helio Castroneves) | 90.394 | Hinchcliffe passed Castroneves on the final restart for his first win. |
| 2014 | Will Power | Team Penske | IndyCar | 24 | Dry | 0.7135 seconds (over Helio Castroneves) | 92.367 | Power's second St. Pete win from pole, leading 88 laps. |
| 2015 | Juan Pablo Montoya | Team Penske | IndyCar | 24 | Dry | 2.4602 seconds (over Graham Rahal) | 93.002 | Montoya's comeback win after a mid-race penalty. |
| 2016 | Simon Pagenaud | Team Penske | IndyCar | 24 | Dry | 0.1802 seconds (over Will Power) | 92.923 | Pagenaud held off Power in the closest St. Pete finish to date. |
| 2017 | Sebastien Bourdais | Dale Coyne Racing | IndyCar | 24 | Dry | 0.2208 seconds (over Graham Rahal) | 92.477 | Bourdais' first IndyCar win since 2007, from 17th on grid. |
| 2018 | Sebastien Bourdais | Dale Coyne Racing | IndyCar | 24 | Dry | 0.4837 seconds (over Graham Rahal) | 93.617 | Back-to-back for Bourdais; Rahal led early but faded. |
| 2019 | Josef Newgarden | Team Penske | IndyCar | 24 | Dry | 17.675 seconds (over Scott Dixon) | 92.273 | Newgarden dominated with 78 laps led in clear conditions. |
| 2020 | Josef Newgarden | Team Penske | IndyCar | 24 | Dry | 4.2467 seconds (over Scott Dixon) | 86.524 | Back-to-back for Newgarden amid pandemic-shortened season opener. |
| 2021 | Colton Herta | Andretti Autosport | IndyCar | 24 | Dry | 0.4795 seconds (over Pato O'Ward) | 93.024 | Herta, age 20, won from pole. |
| 2022 | Scott McLaughlin | Team Penske | IndyCar | 27 | Dry | 0.5537 seconds (over Scott Dixon) | 92.766 | McLaughlin's rookie win from pole, leading 63 laps. |
| 2023 | Marcus Ericsson | Chip Ganassi Racing | IndyCar | 27 | Dry | 0.4825 seconds (over Scott Dixon) | 93.385 | Ericsson held off a late Ganassi 1-2 charge. |
| 2024 | Pato O'Ward | Arrow McLaren | IndyCar | 27 | Dry | 0.4828 seconds (over Scott Dixon) | 94.142 | O'Ward passed Dixon on the final lap for McLaren's first St. Pete win. |
| 2025 | Alex Palou | Chip Ganassi Racing | IndyCar | 27 | Dry | 2.867 seconds (over Scott Dixon) | 97.173 | Palou started eighth but led 26 laps, taking the lead for good on lap 75; Ganassi 1-2 finish.[64] |
Pole Positions and Lap Records
The Grand Prix of St. Petersburg has seen significant improvements in qualifying times since its inception, reflecting advancements in open-wheel racing technology, including aerodynamic kits and tire compounds that enhance downforce and grip on the 1.8-mile street circuit. In the inaugural 2003 event under Champ Car sanctioning, Sébastien Bourdais of Newman/Haas Racing captured the pole position with a lap time corresponding to a speed of 106.710 mph.[65] This marked the start of a trend where pole speeds have gradually increased, averaging around 105-107 mph in the early years and reaching approximately 109 mph by 2025, driven by refinements in car setups that optimize cornering speeds through greater downforce without excessive drag.[66] Under IndyCar sanctioning from 2005 onward, pole positions have been dominated by a select group of drivers, with Team Penske securing 11 of the last 17 starting spots as of 2024. Will Power holds the record for the most poles at the event with nine, achieved between 2008 and 2020, often setting track records in the process; his 2019 pole of 1:00.4594 (107.179 mph) was one such milestone.[67] Notable examples include Josef Newgarden's 2024 pole at 59.5714 seconds and Scott McLaughlin's 2025 pole at 59.4624 seconds, the latter besting Colton Herta by a narrow margin in the Fast Six session.[68][66] The current qualifying lap record stands at 59.2706 seconds, set by Felix Rosenqvist of Meyer Shank Racing in 2024, surpassing previous benchmarks set under varying aero configurations.[69] Lap records during the race itself have followed a similar progression, though typically slower than qualifying due to tire wear, traffic, and fuel loads. Early Champ Car-era fastest laps hovered around 1:05-1:06, with Bourdais posting 105.161 mph in 2003.[65] In the IndyCar period, times have dropped below 1:01 seconds in recent seasons, influenced by softer tire compounds from Firestone that provide better sustained performance and aero kits emphasizing high downforce for the circuit's tight turns. For instance, Josef Newgarden recorded the fastest race lap of 1:01.690 in the 2025 event on lap 89.[70] The all-time race lap record remains 1:00.6795, set by Newgarden in 2024 under the prior universal aero kit, highlighting how regulatory changes have balanced speed gains with safety.Support Series
Road to Indy Programs
The Road to Indy is a structured driver development program administered by INDYCAR, featuring tiered open-wheel racing series that serve as support events to the NTT INDYCAR SERIES, including the Grand Prix of St. Petersburg.[71] These series—primarily Indy NXT and USF Pro 2000—award points based on race finishes, culminating in substantial scholarships for top performers to advance up the ladder toward IndyCar competition.[72] The program typically fields 20-25 cars per race weekend at St. Petersburg, providing young drivers with competitive street course experience on the 1.8-mile circuit.[73] Indy NXT, formerly known as Indy Lights, has been a key feeder series since 2008, offering the final step before IndyCar with Dallara IL-15 chassis powered by AER engines.[71] The series champion receives a scholarship valued at approximately $850,000 to compete in IndyCar the following season, including guaranteed starts in select races.[74] Typically, 3-5 graduates per year transition to full-time IndyCar seats, with notable examples including Kyle Kirkwood, who won multiple Indy NXT races in 2021 before securing a ride with Andretti Autosport in IndyCar starting in 2022.[75] At St. Petersburg, Indy NXT winners from 2008 to present include Raphael Matos (2008 Race 1), Richard Antinucci (2008 Race 2), and more recent victors such as Danial Frost (2023), Nolan Siegel (2024), and Dennis Hauger (2025), who dominated the season opener from pole position.[76] Hauger's 2025 triumph, aboard the No. 28 Andretti Global entry, capped a strong weekend that also saw Alex Palou claim the IndyCar main event victory for Chip Ganassi Racing.[77] USF Pro 2000, evolving from Pro Mazda (2010-2018) to Indy Pro 2000 and its current branding under the USF Pro Championships, represents the intermediate tier with Tatuus FT-40 chassis and Mazda engines. It awards scholarships valued at $546,500 for the champion to progress to Indy NXT, emphasizing skill-building on road and street courses like St. Petersburg.[78] Historical winners at the event from 2010 to 2023 include examples such as Myles Rowe (2023 Race 2), with fields consistently around 20 cars.[79] In 2025, Alessandro de Tullio (Race 1) and Max Garcia (Race 2) took victories for Turn 3 Motorsport and Pabst Racing, respectively, highlighting the series' role in nurturing talent for higher levels.[80][81]Other Historical Support Races
The Grand Prix of St. Petersburg has featured a variety of support races beyond the Road to Indy ladder series, showcasing diverse motorsport disciplines from open-wheel to sports cars and off-road trucks. These events have added to the festival atmosphere, drawing crowds with high-energy racing on the street circuit. Historically, series like the Atlantic Championship served as key support during the Champ Car era, providing a stepping stone for emerging talent with races from 2003 to 2007. In 2003, A. J. Allmendinger secured victory in the Atlantic Championship race, marking an early highlight for the series at the event. Subsequent winners included notable drivers who went on to greater success in open-wheel racing, though the series concluded its run at St. Petersburg after 2007 due to shifting priorities in the IndyCar support structure.[82] The SCCA Trans-Am Series provided thrilling GT racing in the early iterations of the event, complementing the main event with close competition on the tight street layout. The Trans-Am Series itself saw reduced entries post-2010, leading to its discontinuation as a regular support event due to logistical challenges and lower field sizes on street circuits.[38] The Can-Am series had limited involvement, primarily through 1980s revivals that integrated with the event's early iterations. These runs emphasized the event's legacy for unlimited sports racers, though they were not annual fixtures. Stadium Super Trucks emerged as a fan-favorite support series from 2013 to 2019, delivering spectacular jumps and side-by-side action on the waterfront layout. The series debuted at the event in 2013, with Robby Gordon taking an early victory in a rain-affected race. Subsequent years saw intense competition, including Matt Brabham's 2017 win in Race 1, where he edged out rivals in a photo-finish style battle. Other notable winners included Sheldon Creed in 2015 and 2016 races, and Robby Gordon repeating in 2014 and 2018. The trucks' high-flying maneuvers became a staple, but the series paused its St. Petersburg appearances after 2019 due to scheduling conflicts and series evolution.[83][84]| Year | Series | Winner | Notes |
|---|---|---|---|
| 2003 | Atlantic Championship | A. J. Allmendinger | Inaugural Champ Car support run; Allmendinger went on to CART success. |
| 2017 | Stadium Super Trucks | Matt Brabham | Race 1 win in double-header; Brabham's third series title that year. |
| 2014 | Stadium Super Trucks | Robby Gordon | Rain-shortened race; series founder showcased truck capabilities. |