Half distance · 26 September 2027
IRONMAN 70.3 Cozumel
Cozumel, Mexico
The race at a glance
- Circuit
- IRONMAN
- Distance
- Middle distance
- Terrain
- Road
- Swim
- 1.9 km
- Bike
- 90 km
- Run
- 21.1 km
- Date
- 26 Sept 2027
- Registration
- Open
- Swim venue
- Ocean
- Average water temperature
- 29 °C
- Bike profile
- Flat
- Run profile
- Flat
- High air temperature
- 33 °C
- Low air temperature
- 26 °C
- Overall cut-off
- 8 h 30 min
- Entry fee, from
- $360
- Altitude
- 12 m
- Swim start
- Rolling start
Edition history
| 2026 | 20 Sept 2026 | Held |
|---|---|---|
| 2025 | 21 Sept 2025 | Held |
| 2024 | 22 Sept 2024 | Held |
| 2023 | 24 Sept 2023 | Held |
| 2022 | 25 Sept 2022 | Held |
| 2021 | 25 Sept 2021 | Held |
| 2020 | 27 Sept 2020 | Held |
| 2019 | 29 Sept 2019 | Held |
| 2018 | 30 Sept 2018 | Held |
| 2017 | 24 Sept 2017 | Held |
How the day is laid out
The swim is held in the ocean. The wetsuit call is made on race morning, against the temperature measured then.
The organiser publishes 1.9 km of swimming, 90 km on the bike and 21.1 km of running.
The swim uses a rolling start: athletes enter the water a few at a time. The water is usually around 29 °C at this time of year.
The bike course is flat.
The run course is flat.
Typical temperatures for the month run from 26 to 33 °C. The overall cut-off is 8 h 30 min.
Against the calendar
Where this race sits among the others
Ranks are computed across every race of the same distance.
Average water temperature
29 °C · median 21 °C
The 6th warmest of the 128 middle-distance races with a figure, across every circuit.
High air temperature
33 °C · median 25 °C
The 10th hottest of the 152 middle-distance races with a figure, across every circuit.
43
races of this distance pair a flat bike with a flat run, out of 159. 53 share the bike profile alone.
45
races across every distance fall in September, out of 354.
43
races are held in Latin America. 4 of them in the same month as this one.
Questions about this race
- When is IRONMAN 70.3 Cozumel 2027?
- IRONMAN 70.3 Cozumel is held on 26 September 2027 in Cozumel, Mexico. Registration is open on the official race page.
- Is a wetsuit allowed at IRONMAN 70.3 Cozumel?
- Most likely not. The average water temperature is 29 °C, above the 28.8 °C limit beyond which wetsuits are banned. The official call is made on race morning.
- What is the cut-off at IRONMAN 70.3 Cozumel?
- The course closes 8 h 30 min after the start. Intermediate cut-offs after the swim and the bike are in the athlete guide.
- How much is the entry fee for IRONMAN 70.3 Cozumel?
- Entries start at US$360 for an individual age-group entry, before service fees. Prices rise by tier as the race fills.
Where to stay
Hotels and rentals around the race venue, for the nights around race day.
Suggested stay: 24 Sept 2027 to 27 Sept 2027
The map is provided by Stay22. Bookings are made with the provider.
Races of the same distance in the same region
- IRONMAN 70.3 Buenos Aires Palermo
Buenos Aires, Argentina
- Date
- 4 Oct 2026
- Distance
- Middle
- Country
- AR
- IRONMAN 70.3 Encarnacion
Encarnacion, Paraguay
- Date
- 11 Oct 2026
- Distance
- Middle
- Country
- PY
- IRONMAN 70.3 Campeche
Campeche, Mexico
- Date
- 8 Nov 2026
- Distance
- Middle
- Country
- MX
- Challenge Florianópolis
Florianópolis, Brazil
- Date
- 29 Nov 2026
- Distance
- Middle
- Country
- BR
- IRONMAN 70.3 Aracaju-Sergipe
Aracaju, Brazil
- Date
- 29 Nov 2026
- Distance
- Middle
- Country
- BR
- IRONMAN 70.3 Cartagena
Cartagena, Colombia
- Date
- 29 Nov 2026
- Distance
- Middle
- Country
- CO
- IRONMAN 70.3 Valdivia
Valdivia, Chile
- Date
- 29 Nov 2026
- Distance
- Middle
- Country
- CL
- IRONMAN 70.3 Veracruz
Veracruz, Mexico
- Date
- 6 Dec 2026
- Distance
- Middle
- Country
- MX
Entries are handled by the organiser
Registration and the athlete guide are on the official race page.