- Jan 1 10th Orange Bowl: LSU beats Texas A&M, 19-14
- Jan 1 10th Sugar Bowl: Georgia Tech beats Tulsa, 20-18
- Jan 1 30th Rose Bowl: Southern California beats #12 Washington, 29-0
- Jan 23 Detroit Red Wings score 15 goals against New York Rangers with an NHL record 37 points; also record consecutive goals & most lopsided game, 15-0
Braves Lose Manager, Gain Owners
Jan 27 Casey Stengel, manager of the Boston Braves since 1938, resigns Lou Perini, Guido Rugo, & Joseph Maney buy control of Boston Braves
- Feb 2 Baseball meets in NYC to discuss postwar action
- Feb 14 Carl Wick publishes "Salmon Trolling for Commercial & Sport Fishing"
- Feb 18 15-year-old Joe Nuxhall signs a contract to play baseball with the Cincinnati Reds just one day after playing in a high school basketball game; debuts later that year
- Mar 28 6th NCAA Men's Basketball Championship: Utah defeats Dartmouth, 42-40; Utes' first title; small forward Arnie Ferrin is named tournament MOP
- Apr 13 Stanley Cup Final, Montreal Forum, Montreal, Quebec: Montreal Canadiens beat Chicago Blackhawks, 5-4 in overtime for a 4-0 series sweep; Canadiens' first SC triumph since 1931
- Apr 17 48th Boston Marathon won by Gerard Cote of Canada in 2:31:50.4; second straight victory; 3rd of 4 titles
- Apr 19 1944 NFL Draft: Angelo Bertelli from University of Notre Dame first pick by Boston Yanks
- Apr 20 NFL legalizes coaching from bench
- Apr 21 NFL Chic Cardinals & Pittsburgh Steelers merge (dissolves on Dec 3)
- Apr 27 Boston Brave Jim Tobin no-hits Bkln Dodgers, 2-0
- May 6 70th Kentucky Derby: Conn McCreary aboard Pensive wins in 2:04.2
NY Yankees Manager Returns
May 9 Joe McCarthy returns as New York Yankees manager after an illness
- May 13 69th Preakness: Conn McCreary aboard Pensive wins in 1:59.2
- May 15 Cincinnati Red Clyde Shoun no-hits Boston Braves, 1-0
- Jun 1 Washington Senators MLB outfielder Stan Spence goes 6-for-6 in an 11-5 win over the St. Louis Browns; collects 5 singles and a home run
- Jun 3 76th Belmont: G. L. Smith riding Bounding Home wins in 2:32.2
- Jun 7 Achilles Veen soccer team forms in Veen
- Jun 10 Relief pitcher Joe Nuxhall at 15 years, 316 days, debuts for Cincinnati Reds; youngest player in MLB history; becomes All Star and broadcaster
- Jun 22 Longest shut out in Phillies history, Phils beat Braves 1-0 in 15 inn
- Jun 26 Yanks, Dodgers & Giants play unique 6 inn game for War Bonds, each playing successive innings, final score Dodgers-5, Yanks-1 & Giants-0
- Jul 3 Oriole Park, then a minor league baseball stadium burns down in Baltimore; cause, speculated discarded cigarette
- Jul 11 12th All Star Baseball Game: NL wins 7-1 at Forbes Field, Pittsburgh
- Jul 16 Dodgers score 8 unearned runs against Braves to win 8-5 & break their 16-game losing streak, they will lose another 5 in a row
- Jul 20 Browns Nelson Potter is 1st pitcher suspended for throwing spitballs
- Jul 23 Chicago Cubs Bill Nicholson hits 4 HRs in a doubleheader
- Aug 10 Braves Red Barrett throws only 58 pitches to shut out Cincinnati Reds 2-0
- Aug 17 Yanks Johnny Lindell ties record with 4 consecutive doubles in a game
PGA Championship
Aug 20 PGA Championship Men's Golf, Manito G & CC: Bob Hamilton wins his only major title, 1 up in the 36-hole final over heavily favoured Byron Nelson
- Aug 30 11th NFL Chicago All-Star Game: Chicago Bears 24, All-Stars 21 (48,769)
- Sep 4 US National Championship Men's Tennis, Forest Hills, NY: American Frank Parker wins 1st of 4 Grand Slam titles; beats William Talbert 6-4, 3-6, 6-3, 6-3
- Sep 4 US National Championship Women's Tennis, Forest Hills, NY: Pauline Betz Addie wins her third straight US title; beats Margaret Osborne 6-3, 8-6
- Sep 29 Browns last in AL attendance, only 6,172 watch them sweep Yanks in DH
- Oct 1 St Louis Browns beat New York Yankees 5-2 at Sportsman's Park III to win their only AL pennant; lose World Series 4-2 to neighbour Cardinals
- Oct 4 The only all-St. Louis World Series opens at Sportsman's Park with the visiting Browns beating the Cardinals, 2-1 on George McQuinn's home run; Cards win series, 4-2
- Oct 9 Baseball World Series: in the only all-St Louis WS, the Cardinals beat the Browns, 3-1 at Sportsman's Park for 4 games to 2 series victory
- Nov 11 New York Rangers beat Detroit Red Wings, 5-2 to end NHL record 25 game winless streak (0-21-4)
- Nov 25 32nd CFL Grey Cup: Montreal HMCS defeat Hamilton Flying Wildcats, 7-6
- Nov 28 Detroit Tigers pitcher Hal Newhouser is named AL MVP
- Dec 2 10th Heisman Trophy Award: Les Horvath, Ohio State (QB)
- Dec 3 Temporary merger of 2 NFL teams, the Pittsburgh Steelers and Chicago Cardinals, dissolves at finish of season; WWII ends before start of 1945 season, so both teams resume normal operations
Packers 6th League Title
Dec 17 National Football League Championship, Polo Grounds, NYC: Green Bay Packers beat New York Giants, 14-7 for 6th and final league title under long-time coach Curly Lambeau
- Dec 28 Former Wash 3rd baseman Buddy Lewis wins Distinguished Flying Cross
Richard 8 Point Game First
Dec 28 Montreal right wing Maurice 'Rocket' Richard becomes first player in NHL history to score 8 points in one game with 5 goals and 3 assists in the Canadiens' 9-1 win over the Detroit Red Wings