- Jan 1 8th Australasian Championships: James Cecil Parke beats Alfred Beamish (3-6, 6-3, 1-6, 6-1, 7-5)
Event of Interest
Jan 26 Jim Thorpe relinquishes his 1912 Olympic medals for playing as a professional
Jim Thorpe
- Mar 4 NY Yankees are 1st to train outside US (Bermuda)
- Mar 10 Stanley Cup: Quebec Bulldogs sweep Sydney (NS) Millionaires in 2 games
- Mar 24 Netherlands soccer team's 1st victory over England
- Apr 4 75th Grand National: Percy Woodland aboard Covertcoat wins
- Apr 9 Brooklyn Dodger's Ebbets Field opens, Phillies win 1-0
Event of Interest
Apr 10 President Woodrow Wilson throws out 1st ball, Senators beat Yankees 2-1
Woodrow Wilson
Event of Interest
Apr 10 Walter Johnson begins string of 56 consecutive scoreless innings
Walter Johnson
- Apr 19 17th Boston Marathon won by Fritz Carlson of Minn in 2:25:14.8
- May 10 39th Kentucky Derby: Roscoe Goose aboard Donerail wins in 2:04.8
- May 12 Harry Green runs world record marathon (2:38:16.2)
- May 14 Wash Senator Walter Johnson ends record scorless streak at 56 innings
- May 20 38th Preakness: James Butwell aboard Buskin wins in 1:53.4
- May 30 Indianapolis 500: Jules Goux wins in 6:35:05.108 (126.686 km/h)
- Jun 13 45th Belmont: Roscoe Troxler aboard Prince Eugene wins in 2:18
- Jun 14 27th U.S. Women's National Championship: Mary Browne beats Dorothy Green (6-2, 7-5)
- Jun 24 British Open Golf, Royal Liverpool GC: Englishman J H Taylor wins Championship for a 5th and final time, 8 strokes ahead of defending champion Ted Ray
- Jun 30 NY Giants score 10 in 10th to beat Phillies 11-1
- Jul 4 Wimbledon Men's Tennis: New Zealander Anthony Wilding wins 4th straight Wimbledon title beating American Maurice McLoughlin 8-6, 6-3, 10-8
- Jul 4 Wimbledon Women's Tennis: In an all-British final Dorothea Chambers beats Winifred McNair 6-0, 6-4
- Jul 25 Pirates Max Carey goes hitless, but scores 5 runs against Phillies
- Jul 27 11th Tour de France won by Philippe Thys of Belgium
- Jul 28 12th Davis Cup: USA beats British Isles in Wimbledon (3-2)
- Aug 26 33rd U.S. Men's National Championship: Maurice McLoughlin beats R. Norris Williams (6-4, 5-7, 6-3, 6-1)
- Aug 30 Phillies lead Giants 8-6 in top of 9th, fans in bleachers try to distract Giants, Umpire forefeits game to Giants, later overruled
- Aug 31 Soccer club PSV forms in Eindhoven, Netherlands
- Sep 5 Phillies & Braves tie record of only 1 run in a double header, Phillies win 1st game 1-0, then a scoreless tie into 10th
- Sep 6 19th US Golf Amateur Championship won by Jerry Travers
- Sep 14 Cubs Larry Cheney hurls record 14-hit shutout against Giants (7-0)
- Sep 20 19th US Golf Open: Francis Ouimet shoots a 304 at The Country Club MA
- Sep 29 Wash Senator Walter Johnson wins his 36th game
- Oct 11 Philadelphia A's beat NY Giants, 4 games to 1 in 10th World Series
- Oct 12 John McGraw, after drinking, blames Wilbert Robinson's coaching mistakes for World Series lose, Robinson blames McGraw & is fired
- Oct 24 Joe Tinker fired as Cincinnati Reds manager
- Nov 1 Notre Dame upsets Army, 35-13 in the colleges' inaugural football game; quarterback Gus Dorais (14 of 17 passes, 243 yards, 2 TDs) and receiver Knute Rockne use forward pass effectively
- Nov 2 St. Louis Browns player-manager George Stovall, fired the previous summer, is the first MLB player to jump to the Federal League, signing to manage the Kansas City Packers
- Nov 15 9th Australasian Championships: Ernie Parker beats Harry Parker (2-6, 6-1, 6-3, 6-2)
- Nov 28 Heavyweight Jack Johnson KOs Andre Spaul in Paris
- Nov 29 5th CFL Grey Cup: Hamilton Tigers defeats Toronto Parkdale, 44-2
- Dec 6 White Sox beat Giants 9-4 in exhibition game in Tokyo
- Dec 9 Heavyweight Jack Johnson-Jim Johnson fight to no decision in Paris
- Dec 9 John K Tener becomes president of baseball's National League
- Dec 19 Jack Johnson fights Jim Johnson to a draw in 10 rounds for heavyweight boxing title