- Aug 2 Unsuccessful uprising of Macedonians against Turkey
- Aug 4 Cardinal Giuseppe Sarto of Venice elected Pope Pius X
- Aug 8 3rd Davis Cup: British Isles beats USA in Boston (4-1)
- Aug 8 In 11th an old black ball is put into play against Cleve, Tigers' Nap Lajoie protests ignored, he hurls ball out of park & forfeits game
- Aug 12 The Japanese Minister to Russia presents a note to the Russian Government protesting against its failure to evacuate Manchuria
Boxing Title Fight
Aug 14 James J. Jeffries KOs James J Corbett in 10 for heavyweight boxing title
James J. Jeffries
- Aug 15 New Zealand's All Blacks play their first Rugby Test Match against Australia's Wallabies at the Sydney Cricket Ground in Sydney; New Zealand win 22-3
- Aug 16 Tigers play a home game in Toledo Ohio, Yanks win 12-8
- Aug 17 Joe Pulitzer donates $1 million to Columbia University & begins the Pulitzer Prizes in America
- Aug 19 Philadelphia Phillies suffer record 9th straight postponed game
- Aug 23 6th Zionist Congres, Theodor Herzl declares Jewish state
- Aug 26 Phillies walk 17 Dodgers in a game
- Aug 26 23rd U.S. Men's National Championship: Englishman Laurence Doherty beats American William Larned 6-0, 6-3, 10-8
- Aug 29 The Finance Minister, Count Witte, is dismissed in what is seen as a victory for those in Russia who want their country to expand into Manchuria and Korea in defiance of the Japanese
- Aug 31 Joe McGinnity wins his 3rd doubleheader of month