- May 4 23rd Kentucky Derby: Buttons Garner aboard Typhoon II wins in 2:12.5
- May 8 22nd Preakness: T. Thorpe aboard Paul Kauvar wins in 1:51ΒΌ
- May 11 Washington Senator catcher Charlie Farrell throws out 8 attempted stealers
- May 18 New York Giants third baseman Bill Joyce becomes last player in baseball history to hit 4 triples in a game as Giants beat Pittsburgh Pirates, 11-5 at Exposition Park
37th British Open
May 20 37th British Open Men's Golf, Royal Liverpool GC: English amateur Harold Hilton wins 2nd Open title by 1 stroke from Scot James Braid
- May 29 31st Belmont: Joe Scherrer aboard Scottish Chieftain wins in 2:23.25
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