Kona, Hawaii, will host the 2025 Ironman World Championship, scheduled to take place on Saturday, October 11.
The athletes will embark on a 140.4-mile quest, which includes a 2.4-mile swim in Kailua Bay, a 112-mile bike ride along the iconic Queen Ka'ahumanu Highway, and a 26.2-mile run back to the Queen Ka'ahumanu Highway via Palani Road.
Nine out of last year's top 10, including the defending champion Laura Phillip, Kat Matthews, Lucy Charles-Barclay, and Taylor Knibb, will line up for this year's event.
Here's everything you need to know to watch the 2025 Ironman World Championship.
How to watch Ironman World Championship 2025
- TV channel: N/A
- Live stream: Outside TV, Fubo
The 2025 Ironman World Championship won't be broadcast nationally, but you can watch the action on Outside TV.
Additionally, Fubo will be streaming Outside TV's broadcast.
Fubo offers a free trial for new subscribers, so you can try the service before you buy. Stream ESPN, ABC, CBS, Fox, NBC and 100+ top channels of live TV and sports without cable. (Participating plans only. Taxes and fees may apply.)
What time is the Ironman World Championship?
- Date: Saturday, October. 11
- Time: 12:25 p.m. ET
The 2025 Ironman World Championship from Kona will start at 6:25 a.m. local time (HST), which translates to 12:25 p.m. ET, on Saturday, October. 11. The athletes will begin with a 2.4-mile swim course, followed by a 112-mile bike course and end with a 26.2-mile race.
2025 Ironman World Championship entry list
| Bib | Name | Country |
| 1 | Laura Phillip | DEU |
| 2 | Kat Matthews | GBR |
| 3 | Chelsea Sodaro | USA |
| 4 | Marjolaine Pierre | FRA |
| 5 | Lucy Charles-Barclay | GBR |
| 6 | Taylor Knibb | USA |
| 7 | Marta Sanchez | USA |
| 8 | Penny Slater | AUS |
| 9 | Lotte Wilms | NED |
| 10 | Jackie Hering | USA |
| 11 | Hannah Berry | NZL |
| 12 | Anne Reischmann | DEU |
| 14 | Regan Hollioake | AUS |
| 16 | Solveig Lovseth | NOR |
| 17 | India Lee | GBR |
| 18 | Julie Derron | CHE |
| 19 | Katrine Graesboll Christensen | DNK |
| 20 | Lisa Perterer | AUT |
| 21 | Marlene De Boer | NLD |
| 22 | Julie Lemmolo | FRA |
| 23 | Skye Moench | USA |
| 24 | Danielle Lewis | USA |
| 25 | Tamara Jewett | CAN |
| 26 | Laura Jansen | DEU |
| 27 | Maja Stage Nielsen | DNK |
| 28 | Alice Alberts | USA |
| 29 | Henrike Guber | DEU |
| 30 | Jenny Jendryschik | DEU |
| 31 | Rebecca Clarke | NZL |
| 32 | Charlene Clavel | FRA |
| 33 | Sara Svensk | SWE |
| 34 | Rebecca Anderbury | GBR |
| 35 | Gabrielle Lumkes | USA |
| 36 | Holly Lawrence | GBR |
| 38 | Stephanie Clutterbuck | GBR |
| 39 | Jana Uderstadt | DEU |
| 41 | Leonie Konczalla | DEU |
| 42 | Haley Chura | USA |
| 43 | Jocelyn McCauley | USA |
| 44 | Diede Diederiks | NLD |
| 45 | Katie Redmond | AUS |
| 46 | Fiona Moriarty | IRE |
| 47 | Jodie Robertson | USA |
| 48 | Alexandra Watt-Shannon | GBR |
| 49 | Jeanne Collonge | FRA |
| 50 | Lottie Lucas | UAE |
| 51 | Els Visser | NLD |
| 52 | Merle Brunee | DEU |
| 53 | Nina Derron | SUI |
| 54 | Justine Mathieux | FRA |
| 55 | Rachel Olson | USA |
| 56 | Annamarie Strehlow | USA |
| 57 | Julia Skala | GER |
| 58 | Bruna Stolf | BRA |
| 59 | Elisabetta Curridori | ITA |
| 60 | Katie Colville | USA |