Champions
Major League Baseball
'NOTE' Due to a strike in mid-season, the season was divided into a first half and a second half. The division winner of the first half (denoted East 1, West 1) played the division winner of the second half (denoted East 2, West 2).
Other champions
Awards and honors
MLB Statistical Leaders
Major League Baseball final standings
First half of season
Second half of season
Overall record
Events
January-March
- March 11 - Johnny Mize and Rube Foster are elected to the Hall of Fame by the Special Veterans Committee. Mize hit .312 with 359 home runs in 15 seasons for the Cardinals and New York Giants, while Foster was a star pitcher, manager and pioneer of the Negro Leagues during the first quarter of the 20th century.
April-June
- June 12 - After meeting with major league owners for most of the previous day, players' union chief Marvin Miller announces, "We have accomplished nothing. The strike is on," thus beginning the longest labor action to date in American sports history. By the time the season resumes on August 10, 706 games (38 percent of the season schedule) will have been canceled.
July-September
October-December
- October 3 - Bob Horner hits two home runs and scores the winning run to give the Atlanta Braves a 4–3 win over the Cincinnati Reds, and give the Houston Astros the second-half title in the NL West division. Cincinnati, which lost the first-half title to the Dodgers by one-half game, will finish with the best overall record (66-42) in the major leagues, but will not make the playoffs.
- October 3 - The Milwaukee Brewers (playing since 1970) and Montréal Expos (since 1969) clinch their first-ever postseason appearances. Milwaukee beats Detroit 2–1 to wrap up the second-half title in the AL East division, while Montréal edges the Mets 5–4 to win the NL West division's second playoff spot.
- October 5 - The Kansas City Royals shut out Cleveland 9–0 in the first game of a scheduled doubleheader to clinch the second-half title in the AL West division. The second game is canceled as irrelevant.
Movies
Births
Deaths
- January 26 - Ray Oyler, 42, shortstop known for excellent glovework with the Detroit Tigers' 1968 champions, afterwards taken in the expansion draft by the Seattle Pilots
- March 10 - Bob Elson, 76, broadcaster for the Chicago White Sox from 1931 to 1970; also worked with the Cubs and Oakland Athletics
- March 17 - Paul Dean, 67, pitcher who joined his older brother Dizzy on the St. Louis Cardinals, winning 19 games in each of his first two seasons; the brothers each won two games in the 1934 World Series
- March 19 - Frank Lane, 85, general manager of the White Sox, Indians, Brewers and Cardinals known for his numerous trades
- April 16 - Effa Manley, 84, owner of the Negro Leagues' Newark Eagles from 1935 to 1948
- July 1 - Dan Daniel, 91, sportswriter for The Sporting News and various New York newspapers for over 50 years; also a member of baseball's Rules Committee
- August 9 - Sammy T. Hughes, 70, 6-time All-Star second baseman of the Negro Leagues, mainly with the Elite Giants
- October 4 - Freddie Lindstrom, 75, Hall of Fame third baseman for the New York Giants who batted .311 lifetime, twice collecting 230 hits and batting .333 in the 1924 World Series at age 18; later coach at Northwestern
- October 25 - Pete Reiser, 62, All-Star center fielder for the Brooklyn Dodgers who led the NL in batting and four other categories in 1941 and in steals twice, but whose fearless defensive style led to numerous injuries
- December 10 - John F. Kieran, 89, New York sportswriter and radio and television personality who authored books on numerous subjects