- Oct 2 First Rugby Union match is played at the English RFU owned Twickenham ground; Harlequins beat Richmond, 14-10
- Oct 14 Pirates beat Tigers, 5-4, forces 1st full 7 game world series
Boxing Title Fight
Oct 16 In his 4th title defence Jack Johnson KOs Stanley Ketchel in the 12th round at Mission St Arena, Colma, California to retain his heavyweight boxing crown
- Oct 16 Baseball World Series: Pittsburgh Pirates beat Detroit Tigers, 8-0 at Bennett Park to clinch 4-3 series win; Tigers' third straight WS defeat
- Oct 18 Comte de Lambert of France sets airplane altitude record of 300 m
- Oct 24 Italy and Russia sign the Racconigi Pact in which both nations promise to support the status quo in the Balkans
- Oct 25 Australasian Championships Men's Tennis, Perth: Anthony Wilding of New Zealand wins his 2nd Australasian title; beats Ernie Parker of Australia 6–1, 7–5, 6–2
Historic Event
Oct 26 Itō Hirobumi, Resident-General of Korea, and former Japanese Prime Minister is shot and killed by Korean nationalist An Jung-geun in Harbin, China
