Complete game
In baseball, a complete game (often abbreviated as CG) is a statistical achievement awarded to a starting pitcher who pitches every inning of a game for their team without being relieved by another pitcher, regardless of the game's length or outcome.[1] This feat applies to regulation games of at least nine innings, as well as shortened contests due to weather or extra-inning marathons, provided the pitcher handles all defensive responsibilities from start to finish.[2] Historically, complete games were a cornerstone of pitching in Major League Baseball (MLB), reflecting the endurance demands of early 20th-century play when bullpens were less specialized and starters routinely finished what they began.[2] Cy Young holds the all-time MLB record with 749 career complete games, a mark set across his 22 seasons from 1890 to 1911, while the single-season record belongs to Will White with 75 in 1879.[3] In the modern era (post-1900), Jack Chesbro's 48 complete games in 1904 stand as the benchmark, though pitchers like Nolan Ryan (222 career) and Warren Spahn (382) exemplified the endurance into the mid-20th century. The frequency of complete games has dramatically declined since the 1980s due to advances in training science, increased emphasis on pitch counts to prevent injury, and the rise of specialized relief pitching roles like setup men and closers.[2] In 1975, MLB saw 1,052 complete games across both leagues, but by 2025, that number had fallen to just 29, marking one of the lowest totals in history.[4] No pitcher has recorded more than 11 complete games in a single season since 2011 (James Shields), and low totals in recent seasons highlight the shift toward bullpen management in contemporary strategy.[5] Despite their rarity, complete games remain a celebrated milestone, often tied to shutouts or no-hitters for added prestige—examples include Hunter Greene's one-hit shutout in 2025 and Yoshinobu Yamamoto's pair of complete games that year.[6] Records for longest complete games underscore the physical toll, with Joe Oeschger and Leon Cadore sharing the MLB mark for a 26-inning, 1-1 tie in 1920.[2] In international play, such as Nippon Professional Baseball (NPB), the tradition persists more robustly than in MLB.[2]Definition and Basics
Criteria for a Complete Game
In Major League Baseball, a complete game is credited to a starting pitcher who pitches every inning for which their team is on defense, from the first pitch through the final out, without being relieved by another pitcher. This applies regardless of whether the pitcher's team wins, loses, or the game ends in a tie, provided the game reaches official status. The statistic emphasizes the pitcher's endurance and responsibility for the entire contest.[1] For standard nine-inning games, the pitcher must complete all nine innings to earn the credit. In cases of rain-shortened games, a complete game is awarded if the pitcher has thrown the entirety of the official game, which requires at least five innings if the home team is leading or the score is tied at the time the game is called. If the visiting team is leading after four and a half innings when play is halted, the game is not official, and no complete game is credited.[1] Extra-inning games extend the requirement: the starting pitcher must pitch all innings, including any additional frames, to qualify for a complete game.[1] Shutouts, no-hitters, and perfect games are specialized achievements that inherently qualify as complete games, as they demand the pitcher finish the contest without substitution. A shutout, per Official Baseball Rule 9.18, requires the pitcher to complete the game while allowing zero runs scored by the opponent; an exception applies only if a reliever enters with none out in the first inning before any runs score, retires the side without a run, and then pitches the rest of the game scoreless. A no-hitter is a complete game in which no opposing batter reaches base via a hit, though walks, errors, or hit-by-pitches may occur. A perfect game is the rarest form, consisting of a complete game where no batter reaches base at all, resulting in 27 consecutive outs.[7]Distinctions from Related Pitching Statistics
A complete game (CG) is distinguished from a shutout (SHO) primarily by the allowance of runs; in a CG, a pitcher may surrender runs while pitching the full game, whereas a shutout requires no runs allowed at all.[8] Per Major League Baseball rules, a shutout is credited to a starting pitcher who pitches the entire game without permitting the opposing team to score, automatically qualifying it as a complete game.[8] This overlap exists, but the shutout imposes a more stringent criterion focused on run prevention rather than mere game completion.[9] Complete games also differ markedly from no-hitters and perfect games, which represent rarer subsets emphasizing hitlessness or baserunner denial. A no-hitter is defined as a complete game in which a pitcher allows no hits over at least nine innings, though baserunners may reach via walks, errors, or hit-by-pitches.[10] A perfect game escalates this rarity further, requiring a no-hitter with zero baserunners whatsoever, meaning all 27 batters are retired in order.[11] The hierarchy of scarcity reflects this progression: perfect games (24 in MLB history) are the rarest, followed by no-hitters (approximately 300), with complete games far more common (thousands recorded).[11] In contrast to a quality start (QS), which measures a solid but partial outing, a complete game demands pitching through the game's entirety. A QS is achieved by a starting pitcher delivering at least six innings while allowing no more than three earned runs, serving as an indicator of effective run prevention without requiring full-game stamina.[12] While many complete games qualify as quality starts if they meet the earned-run threshold, a QS can end prematurely via managerial decision, highlighting the distinction in endurance demands.[12] Games started (GS) represent a broader and less demanding metric than complete games, crediting a pitcher simply for initiating the contest. In baseball statistics, a GS is recorded when a pitcher is the first to take the mound and faces at least one batter, regardless of innings completed or outcome. A complete game, however, requires the pitcher to finish what they start, pitching all innings without relief, thus emphasizing durability over mere participation.[1] Complete games influence advanced metrics like Wins Above Replacement (WAR) by contributing to higher innings pitched totals, which amplify a pitcher's overall value if performance remains strong. In WAR calculations, such as those used by Baseball-Reference, innings pitched factor into runs allowed and expected runs components, rewarding endurance that prevents additional runs across more frames.[13] For instance, a pitcher accumulating 10 complete games in a season might log 200+ innings, boosting their WAR by 2-3 wins compared to a peer with similar effectiveness but fewer starts finished, as the extra innings enhance run-prevention leverage against replacement-level alternatives.[13] ERA+, an adjusted earned run average metric, is less directly impacted since it normalizes per nine innings, but sustained complete games indirectly support it by allowing consistent workload without inflating per-inning rates.Historical Development
Origins in Early Baseball
The concept of the complete game emerged in the formative years of professional baseball during the 19th century, when pitchers were expected to finish every game they started due to limited team rosters and the absence of specialized relief pitchers. In the National Association of Professional Base Ball Players (1871-1875), the first professional league, hurlers routinely completed nearly all their starts, as teams typically carried only 10-12 players total, leaving no dedicated bullpen options. For instance, in 1871, Boston Red Stockings pitcher Al Spalding started 31 games and completed all 31, reflecting the era's norm where endurance was paramount and substitutions were rare.[14][15] This practice continued seamlessly into the National League's inaugural season in 1876, where complete games became a documented staple of pitching performance amid the league's push for structured professionalism. Pitchers in the early National League often logged extraordinary workloads, with leaders completing 50 or more games per season; Jim Devlin of the Louisville Grays topped the circuit with 66 complete games that year, underscoring the expectation that starters would pitch full nine innings regardless of fatigue. Al Spalding, transitioning from the National Association to the Chicago White Stockings, further exemplified this by completing 60 games in 1876 while leading the league with 47 wins, and his influence extended beyond the mound as he helped formalize pitching roles through his roles as player-manager and league executive, enforcing discipline and professional standards that solidified the starter's responsibility to finish.[16][17] Pre-modern norms amplified the prevalence of complete games, particularly in the 1880s, when top pitchers averaged over 50 completions per season due to the lack of bullpen specialization and the era's emphasis on individual endurance over team depth. Leading hurlers like Pud Galvin and Old Hoss Radbourn routinely exceeded 60 complete games annually—for example, Radbourn completed 73 in 1884—highlighting how aces shouldered entire schedules without relief, often pitching 600 or more innings yearly. Cy Young later epitomized this benchmark in the late 19th and early 20th centuries, amassing 749 complete games across his career from 1890 to 1911, a record that established the gold standard for pitcher stamina.[4][18] In the dead-ball era preceding 1920, complete games carried profound cultural significance as symbols of pitcher dominance, tied to low-scoring contests and the era's gritty, defensive-oriented playstyle. With balls remaining in use longer and trick pitches like the spitball enhancing control, hurlers asserted mastery over offenses, completing games to demonstrate not just skill but unyielding endurance in an age where low run totals—often under three per team—rewarded pitching prowess above all. This era's reliance on complete games reinforced the pitcher's central role in baseball's identity, celebrating figures who could carry their teams through marathon efforts without yielding the mound.[19]Evolution Through Rule Changes
The transition from the dead-ball era to the live-ball era around 1920 fundamentally altered the role of complete games through rule changes designed to boost offense. Key modifications included outlawing the spitball for most pitchers, introducing a livelier cork-centered ball, and mandating the replacement of soiled or damaged baseballs to maintain visibility and freshness. These adjustments, prompted in part by the tragic death of Cleveland Indians shortstop Ray Chapman from a pitch to the head in 1920, resulted in a 36% surge in scoring, from 3.6 runs per team per game in 1917 to 4.9 in 1922, with home runs tripling from 0.13 to 0.43 per team per game. Consequently, the percentage of starts ending in complete games declined from approximately 70% in the late dead-ball period to under 50% by the mid-1920s, as heightened offensive pressure made it more challenging for pitchers to finish what they started.[20] The post-World War II period saw the bullpen's rise as a strategic cornerstone, further eroding the complete game's frequency. In the 1940s and 1950s, managers increasingly relied on relief specialists to protect leads or rescue faltering starters, a tactic pioneered by figures like Casey Stengel during his tenure with the New York Yankees. Stengel adeptly deployed pitchers such as Allie Reynolds in hybrid roles, blending starting and relieving to maximize effectiveness in high-stakes situations, while relievers like Joe Page (27 saves in 1949) and Hoyt Wilhelm (debuting in 1952) emerged as dedicated bullpen aces. This shift contributed to league-wide complete games dropping to 20-30 per team per season by the 1950s, down from higher rates in prior decades, as teams prioritized matchup advantages over pitcher endurance.[21] Major rule alterations in the late 1960s accelerated the emphasis on pitching specialization amid concerns over extreme pitcher dominance. Following the 1968 season, marked by a record-low batting average of .237 and ERAs under 2.00 for seven starters including Bob Gibson's 1.12, Major League Baseball lowered the mound from 15 to 10 inches and shrank the strike zone. These changes boosted run scoring by 19%, from 3.42 to 4.07 runs per game in 1969, primarily through more walks and home runs, while increasing wild pitches by 5%. The resulting offensive uptick made sustaining dominance over nine innings rarer, reinforcing bullpen reliance and continuing the downward trajectory for complete games.[22] The American League's implementation of the designated hitter rule in 1973 provided an indirect boost to pitcher stamina by exempting them from batting duties, theoretically allowing greater focus on fielding and pitching. In the AL, complete games initially rose above 600 annually post-1973, compared to 300-500 in prior years across both leagues, though this spike was short-lived amid broader strategic evolution. Over time, the rule did not reverse the decline in pitcher endurance, as specialization in relief roles persisted, but it highlighted how removing offensive burdens could marginally extend starting outings in theory.[23] Racial integration, commencing with Jackie Robinson's debut for the Brooklyn Dodgers in 1947, intensified competition by expanding the talent pool with Negro League stars, thereby diminishing individual pitching dominance. Pre-integration, segregation artificially limited opponents' quality, inflating white pitchers' stats; integration introduced elite talents like Satchel Paige (debuting in 1948), which raised overall league quality and made complete games harder to achieve through sustained control. This influx equated to a roughly 10% talent dilution effect, comparable to later expansions, fostering more balanced matchups and fewer opportunities for pitchers to carry games solo.[24]Trends in Usage
Frequency Over Time
The frequency of complete games in Major League Baseball has undergone a profound decline across its history, transitioning from a standard expectation for starting pitchers to a rare occurrence. In the early 20th century, league-wide totals often surpassed 1,500 complete games per season, accounting for over 70% of all pitching starts. By the late 20th century, this had contracted significantly, with totals in the hundreds, and in recent decades, numbers have hovered between 28 and 34 annually, representing less than 1% of starts. This trend reflects broader shifts in pitching strategies and game management, as documented in official MLB records. Breaking down by era illustrates the steep trajectory. In the dead-ball era (1900-1919), complete games constituted 60-70% of starts, driven by fewer relief options and shorter schedules with 16 teams playing 154 games each. The integration era (1947-1969) saw a reduction to 30-40% of starts, amid expanding rosters and the introduction of more specialized bullpens following World War II. The steroid era of the 1990s experienced a modest rebound to around 5% of starts, coinciding with offensive surges but still far below historical norms. In the analytics era (2010s-present), the rate has dipped below 3%, with just 34 complete games in 2023 (0.7% of 4,860 starts), 28 in 2024 (0.6% of 4,860 starts), and 29 in 2025 (0.6% of 4,860 starts), continuing the downward pattern even after the 2023 pitch clock implementation.[25][26] To highlight the per-team perspective, the following table summarizes average complete games per team by decade, derived from Baseball-Reference trends and MLB historical data. These averages underscore the normalization of complete games in earlier decades versus their scarcity today.[4][27]| Decade | Average CGs per Team | Total Seasons CGs (Approx.) | Notes |
|---|---|---|---|
| 1900s | 110 | 1,750+ | 16 teams; high due to limited relief pitching (~80% completion rate). |
| 1910s | 115 | 1,850+ | Peak era for completion rates (~75% of starts). |
| 1920s-1930s | 70-90 | 1,100-1,450 | Live-ball transition; still dominant (~50-60% rates). |
| 1940s-1950s | 50-70 | 800-1,100 | Postwar expansion of bullpens (~35-45% rates). |
| 1960s-1970s | 35-45 | 700-1,050 | 25-30% rates; last high-volume period (e.g., 1,052 in 1975). |
| 1980s-1990s | 15-25 | 350-600 | Decline accelerates with specialization. |
| 2000s | 5-10 | 150-250 | Analytics influence begins. |
| 2010s | 2-4 | 80-150 | <3% of starts. |
| 2020s (through 2025) | ~1 | 30-50 | Record lows; 0.6-1% or less of starts in recent years. |
Factors Contributing to Decline
The decline in complete games has been driven by a combination of strategic shifts, physiological demands, and technological advancements in baseball. One primary factor is the modern emphasis on pitching velocity, with average four-seam fastball speeds for right-handed pitchers reaching 95 mph in recent seasons, up from lower averages in prior decades. This focus on high-velocity pitching accelerates arm fatigue, as pitchers expend greater energy per throw, contributing to earlier removal from games to preserve health.[28][29] Related to this is the rising incidence of arm injuries, exemplified by ulnar collateral ligament reconstructions commonly known as Tommy John surgery. Rates of this procedure among major league pitchers have increased by approximately 30% since the mid-2010s, with over 35% of active pitchers having undergone it by 2023, underscoring the physiological toll of sustained high-effort outings.[30] Bullpen specialization has further reduced complete games by prioritizing matchup-based relief pitching. The emergence of high-leverage relievers, such as closers who dominate late innings, has led to nearly all games—over 95% in recent years—featuring multiple pitchers per team, a sharp rise from historical norms where starters often finished what they started.[15][31] Analytics and sabermetrics have reinforced this trend through metrics like Fielding Independent Pitching (FIP), which evaluates pitchers based on outcomes they directly control—strikeouts, walks, and home runs—rather than endurance or defensive support. This approach favors efficient, short bursts over prolonged appearances, aligning with standard pitch count limits of 100-110 established in the 2000s to optimize performance and minimize risk.[32][33] The introduction of the pitch clock in 2023 has indirectly discouraged long outings by compressing game times, reducing the average nine-inning duration by about 30 minutes through stricter pacing between pitches and batters. This heightened tempo increases pressure on starters to perform quickly, often leading to earlier hooks in favor of specialized relievers.[34] Economic incentives also play a role, as escalating player salaries—averaging over $4 million per major leaguer—have amplified the focus on injury prevention to protect high-value investments. The Major League Baseball Players Association (MLBPA) has negotiated collective bargaining provisions emphasizing workload management, including guidelines for rest and monitoring to safeguard pitcher longevity amid these financial stakes.[35]All-Time Records
Career Leaders
The all-time career leaders in complete games (CG) pitched in Major League Baseball are overwhelmingly from the dead-ball era and earlier, reflecting the pitching demands of that time when starters routinely finished what they began. Cy Young holds the record with 749 complete games over his 22-year career (1890–1911), primarily with the Cleveland Spiders, Boston Americans/Red Sox, and others.[3] The following table lists the top 10 career leaders, including their total CG, years active, and primary teams:| Rank | Pitcher | CG | Years Active | Primary Teams |
|---|---|---|---|---|
| 1 | Cy Young | 749 | 1890–1911 | Cleveland Spiders, Boston Red Sox |
| 2 | Pud Galvin | 646 | 1875–1892 | Buffalo Bisons, Pittsburgh Alleghenys |
| 3 | Tim Keefe | 554 | 1880–1893 | New York Giants, Troy Trojans |
| 4 | Kid Nichols | 532 | 1890–1906 | Boston Beaneaters, St. Louis Cardinals |
| 5 | Walter Johnson | 531 | 1907–1927 | Washington Senators |
| 6 | Bobby Mathews | 525 | 1871–1887 | Philadelphia Athletics, Baltimore Orioles |
| 7 | Mickey Welch | 525 | 1880–1892 | New York Giants, Troy Trojans |
| 8 | Old Hoss Radbourn | 488 | 1881–1891 | Providence Grays, Boston Beaneaters |
| 9 | John Clarkson | 485 | 1882–1894 | Chicago White Stockings, Boston Beaneaters |
| 10 | Tony Mullane | 468 | 1881–1894 | Cincinnati Red Stockings, Detroit Wolverines |
Single-Season Leaders
The all-time single-season record for complete games belongs to Will White, who pitched 75 in 1879 for the Cincinnati Reds in the National League.[38] In the modern era (post-1900), the leader is Jack Chesbro with 48 complete games in 1904 for the New York Highlanders.[39] These marks reflect the dominance of individual pitchers in eras with fewer total games and less specialized bullpen usage. The top 10 single-season complete games leaders are dominated by 19th-century pitchers, as shown below:| Rank | Player | Year | Complete Games |
|---|---|---|---|
| 1 | Will White | 1879 | 75 |
| 2 | Old Hoss Radbourn | 1884 | 73 |
| 3 | Pud Galvin | 1883 | 72 |
| 4 | Guy Hecker | 1884 | 72 |
| 5 | Jim McCormick | 1880 | 72 |
| 6 | Pud Galvin | 1884 | 71 |
| 7 | John Clarkson | 1889 | 68 |
| 8 | John Clarkson | 1885 | 68 |
| 9 | Tim Keefe | 1883 | 68 |
| 10 | Bill Hutchison | 1892 | 67 |
Contemporary Achievements
Active Career Leaders
As of the end of the 2024 regular season, Justin Verlander leads all active Major League Baseball pitchers in career complete games with 26, achieved over a 20-year career spanning the Detroit Tigers (2005–2017), Houston Astros (2018–2023), and New York Mets (2024).[36] Clayton Kershaw ranks second with 25 complete games across 17 seasons, all with the [Los Angeles Dodgers](/page/Los Angeles_Dodgers) since his 2008 debut.[36] Chris Sale follows in third place with 16, accumulated during 15 years with the Chicago White Sox (2010–2016), Boston Red Sox (2017–2023), and Atlanta Braves (2024).[36] A cluster of pitchers ties for fourth with 12 complete games each, including Max Scherzer (17 seasons from 2008–2024 with the Arizona Diamondbacks, Detroit Tigers, Washington Nationals, [Los Angeles Dodgers](/page/Los Angeles_Dodgers), New York Mets, and Texas Rangers), Dallas Keuchel (13 seasons with the Houston Astros, Atlanta Braves, Chicago White Sox, Arizona Diamondbacks, Minnesota Twins, and Texas Rangers since 2012). Sandy Alcantara ranks next with 4 complete games over eight seasons with the Miami Marlins since 2017.[36][44] These leaders represent the last generation of pitchers who regularly pushed for complete games in the 2010s.[45][46] Among active pitchers with 10 or more years of experience, the average number of career complete games remains below 10, reflecting the broader decline in the statistic since the early 2000s.[36] For instance, Zack Wheeler (12 seasons with the Philadelphia Phillies since 2013) has six, while Framber Valdez (seven seasons with the Houston Astros since 2018) has six.[36][47] Younger pitchers show even sparser totals; Tanner Bibee, who debuted in 2023 at age 24, recorded none through 2024, highlighting how emerging talents prioritize efficiency over endurance.[48] The scarcity of complete games among actives stems from structural changes in modern baseball, including strict pitch-count limits (typically 100 or fewer per start) to prevent injuries, the rise of specialized bullpens for late-inning matchups, and data-driven strategies exploiting the "third time through the order" penalty, where hitters perform 27% worse against starters in later innings.[33] These factors make it unlikely for any current active pitcher to approach the top 50 all-time leaders, who mostly accumulated their totals before 1990, as no active has exceeded 26 in an era where league-wide complete games dropped to a record-low 28 in 2024.[49]| Rank | Pitcher | Complete Games | Years Active | Primary Teams |
|---|---|---|---|---|
| 1 | Justin Verlander | 26 | 2005–2024 | Tigers, Astros, Mets |
| 2 | Clayton Kershaw | 25 | 2008–2024 | Dodgers |
| 3 | Chris Sale | 16 | 2010–2024 | White Sox, Red Sox, Braves |
| 4 (tie) | Max Scherzer | 12 | 2008–2024 | Diamondbacks, Tigers, Nationals, Dodgers, Mets, Rangers |
| 4 (tie) | Dallas Keuchel | 12 | 2012–2024 | Astros, Braves, White Sox, Diamondbacks, Twins, Rangers |
| 6 | Sandy Alcantara | 4 | 2017–2024 | Marlins |