# October IRONMAN races Canonical: https://findmytris.com/races/month/october 11 upcoming races with a start date in October (any year). Races with an unannounced (TBD) date are omitted from this month list. The 11 races on this page are 5 full IRONMAN and 6 IRONMAN 70.3, in 6 countries on 4 continents; Europe has the most (5). All of them are in October 2027. Listed average water temperatures range from 62°F (17°C) to 79°F (26°C). 10 of the 11 races with a listed water temperature are at or below 76°F (24°C), where wetsuits are usually allowed. The most common swim is ocean (5), followed by bay (3) and river (3). - [IRONMAN Calella-Barcelona](https://findmytris.com/events/im-barcelona) — October 3, 2027, Calella, Spain · IRONMAN - [IRONMAN World Championship](https://findmytris.com/events/im-world-championship-kona) — October 9, 2027, Kona, United States · IRONMAN - [IRONMAN 70.3 North Carolina](https://findmytris.com/events/im703-north-carolina) — October 16, 2027, Wilmington, United States · IRONMAN 70.3 - [IRONMAN Australia](https://findmytris.com/events/im-australia) — October 17, 2027, Port Macquarie, Australia · IRONMAN - [IRONMAN 70.3 Port Macquarie](https://findmytris.com/events/im703-port-macquarie) — October 17, 2027, Port Macquarie, Australia · IRONMAN 70.3 - [IRONMAN 70.3 Poreč](https://findmytris.com/events/im703-croatia) — October 17, 2027, Porec, Croatia · IRONMAN 70.3 - [IRONMAN Portugal-Cascais](https://findmytris.com/events/im-cascais) — October 23, 2027, Cascais, Portugal · IRONMAN - [IRONMAN 70.3 Cascais Portugal](https://findmytris.com/events/im703-cascais) — October 23, 2027, Cascais, Portugal · IRONMAN 70.3 - [IRONMAN California](https://findmytris.com/events/im-california) — October 24, 2027, Sacramento, United States · IRONMAN - [IRONMAN 70.3 Florianopolis](https://findmytris.com/events/im703-florianopolis) — October 24, 2027, Florianopolis, Brazil · IRONMAN 70.3 - [IRONMAN 70.3 Málaga](https://findmytris.com/events/im703-malaga) — October 31, 2027, Málaga, Spain · IRONMAN 70.3 --- Data compiled by Find My Tris from official IRONMAN pages; please cite findmytris.com.