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IRONMAN 70.3 Western Australia
IRONMAN 70.3 Western Australia is raced in Busselton, Australia (Swim 1.9 km · Bike 90 km · Run 21.1 km). Results from 3 editions (2023–2025), the course, race-day weather and water temperature.
- SwimBay
- BikeFlat
- RunFlat
- High air temp22°C72°F
- Low air temp16°C61°F
- Avg. water temp21°C69°F
Temperatures: race-hours average over 3 editions
IRONMAN 70.3 Western Australia results
Fastest men
3:37:35
Gregory Barnaby · 2024
Fastest women
4:06:38
Marta Sanchez · 2024
Fastest edition
2023
median 5:46:07
Avg. age group · 2025
5:51:03
swim 38:41 · bike 2:53:31 · run 2:07:37
| Edition | Date | Finishers | Men | Women | Median | |
|---|---|---|---|---|---|---|
| 2025 | Dec 7, 2025 | 1085 | Oliver Wright 4:06:56 | Ella Phelan 4:41:54 | 5:46:43 | Pacing |
| 2024 | Dec 1, 2024 | 1174 | Gregory Barnaby 3:37:35 | Marta Sanchez 4:06:38 | 5:53:53 | Pacing |
| 2023 | Dec 3, 2023 | 1136 | Kurt Hansen 4:01:01 | Rachael Smyth 4:25:19 | 5:46:07 | Pacing |
IRONMAN 70.3 Western Australia course
The bike is flat, with ≈50 m (164 ft) of climbing on the bike and ≈0 m (0 ft) of climbing on the run.
Swim Bike Run · Watch the replay on the map →
Bike · 90.4 km56 mi · ≈ +50 m164 ft · from 4 to 16 m13 to 52 ft
Run · 21.5 km13.4 mi · ≈ +0 m0 ft · from 5 to 6 m16 to 20 ft
Difficulty
#87 hardest of 125
vs. the average IRONMAN 70.3: −2.1% · swim +4.9% · bike −3.8% · run −2.0%
Elevation filtered for terrain-model noise; a bike computer may read differently.
IRONMAN 70.3 Western Australia weather & water temperature
| Edition | Air swim / bike / run | Wind | Rain | Water | AG wetsuit |
|---|---|---|---|---|---|
| 2025 | 12°C54°F / 17°C62°F / 22°C71°F | 5 km/h3 mph | 0.0 mm0.00 in | 20°C68°F * | Legal |
| 2024 | 17°C63°F / 19°C67°F / 22°C71°F | 19 km/h12 mph | 0.7 mm0.03 in | 20°C68°F * | Legal |
| 2023 | 19°C66°F / 21°C70°F / 24°C75°F | 17 km/h11 mph | 0.0 mm0.00 in | 22°C71°F * | Legal |
* Satellite estimate (sea surface at start time). Wetsuit rules →
IRONMAN 70.3 Western Australia reviews
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