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IRONMAN 70.3 Swansea
IRONMAN 70.3 Swansea is raced in Swansea Bay, United Kingdom (Swim 1.9 km · Bike 90 km · Run 21.1 km). Results from 3 editions (2024–2026), the course, race-day weather and water temperature.
- SwimHarbor
- BikeHilly
- RunFlat
- High air temp23°C74°F
- Low air temp17°C63°F
- Avg. water temp19°C67°F
Temperatures: race-hours average over 3 editions
IRONMAN 70.3 Swansea results
Fastest men
3:50:27
Harry Palmer · 2026
Fastest women
4:20:37
Kat Matthews · 2025
Fastest edition
2025
median 6:09:42
Avg. age group · 2026
6:27:39
swim 37:31 · bike 3:23:56 · run 2:11:20
| Edition | Date | Finishers | Men | Women | Median | |
|---|---|---|---|---|---|---|
| 2026 | Jul 12, 2026 | 1746 | Harry Palmer 3:50:27 | Lizzie Rayner 4:23:56 | 6:24:38 | Pacing |
| 2025 | Jul 13, 2025 | 1455 | Harry Palmer 3:51:18 | Kat Matthews 4:20:37 | 6:09:42 | Pacing |
| 2024 | Jul 14, 2024 | 1636 | Harry Palmer 3:52:54 | Nikki Bartlett 4:21:05 | 6:12:16 | Pacing |
IRONMAN 70.3 Swansea course
The bike is hilly, with ≈940 m (3,084 ft) of climbing on the bike and ≈10 m (33 ft) of climbing on the run.
Swim Bike Run · Watch the replay on the map →
Bike · 89.9 km56 mi · ≈ +940 m3,084 ft · from 9 to 151 m30 to 495 ft
Run · 21.2 km13.2 mi · ≈ +10 m33 ft · from 7 to 11 m23 to 36 ft
Difficulty
#8 hardest of 125
vs. the average IRONMAN 70.3: +6.3% · swim −3.9% · bike +12.1% · run −0.5%
Elevation filtered for terrain-model noise; a bike computer may read differently.
IRONMAN 70.3 Swansea weather & water temperature
| Edition | Air swim / bike / run | Wind | Rain | Water | AG wetsuit |
|---|---|---|---|---|---|
| 2026 | 19°C66°F / 22°C71°F / 26°C80°F | 16 km/h10 mph | 0.0 mm0.00 in | 21°C69°F * | Legal |
| 2025 | 20°C68°F / 23°C73°F / 26°C78°F | 17 km/h11 mph | 0.0 mm0.00 in | 20°C68°F * | Legal |
| 2024 | 12°C54°F / 15°C59°F / 17°C63°F | 4 km/h2 mph | 0.0 mm0.00 in | 17°C63°F * | Legal |
* Satellite estimate (sea surface at start time). Wetsuit rules →
IRONMAN 70.3 Swansea reviews
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