<P> There are nine innings in a professional baseball game . </P> <P> The record for the most innings ever played in a single professional game is 33 which occurred in a 1981 minor - league game between the Pawtucket Red Sox and the Rochester Red Wings, Triple - A affiliates of the Boston Red Sox and the Baltimore Orioles, respectively . Interestingly, each team had a future Hall of Famer on its roster: Wade Boggs for Pawtucket and Cal Ripken Jr. for Rochester . </P> <P> The longest game by innings in Major League Baseball was a 1--1 tie in the National League between the Boston Braves and the Brooklyn Robins in 26 innings, at Braves Field in Boston on May 1, 1920 . It had become too dark to see the ball (fields did not have lights yet and the sun was setting), and the game was considered a draw . Played rapidly by modern standards, those 26 innings were completed in 3 hours and 50 minutes . As was the custom, the first pitch was thrown at 3: 00 p.m.; home plate umpire Barry McCormick called the game as lights began appearing in the windows of buildings across the Charles River, just before 7: 00 p.m. </P> <P> The longest American League game, and tied for the longest major league game by innings which ended with one team winning, was a 7--6 victory by the Chicago White Sox over the Milwaukee Brewers in 25 innings, at Comiskey Park in Chicago in 1984 . The game began at 7: 30 p.m. on May 8, 1984, and after scoring early runs both teams scored twice in the 8th inning; but the game was suspended after 17 innings with the score tied 3--3 due to a league curfew rule prohibiting an inning from beginning after 12: 59 a.m. The game was continued the following evening, May 9, 1984, and both teams scored three times in the 21st inning to make the score 6--6; finally, in the bottom of the 25th, the White Sox' Harold Baines hit a home run to end the contest . Tom Seaver was the winning pitcher in relief . A regularly scheduled game followed, meaning both nights saw 17 innings played; Seaver also started, and won, the second game . The official time of the entire 25 - inning game was 8 hours, 6 minutes, also a major league record . </P>

The most innings played in a mlb game