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IRONMAN 70.3 Goseong
IRONMAN 70.3 Goseong is raced in Goseong, South Korea (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.
- SwimOcean
- BikeRolling
- RunHilly
- High air temp27°C80°F
- Low air temp20°C68°F
- Avg. water temp23°C74°F
Temperatures: race-hours average over 1 editions
IRONMAN 70.3 Goseong results
Fastest men
4:04:02
Christopher Mascarenhas Keyes · 2024
Fastest women
4:44:17
Misaki Tanaka · 2026
Fastest edition
2026
median 6:05:18
Avg. age group · 2026
6:09:13
swim 46:05 · bike 3:01:31 · run 2:12:36
| Edition | Date | Finishers | Men | Women | Median | |
|---|---|---|---|---|---|---|
| 2026 | Jun 14, 2026 | 1263 | Jed Radbone 4:06:39 | Misaki Tanaka 4:44:17 | 6:05:18 | Pacing |
| 2025 | Jun 15, 2025 | 1124 | Younghwan Oh 4:19:40 | Sunjung Oh 5:02:05 | 6:14:29 | Pacing |
| 2024 | Jun 16, 2024 | 1068 | Christopher Mascarenhas Keyes 4:04:02 | Sunjung Oh 5:10:18 | 6:24:34 | Pacing |
IRONMAN 70.3 Goseong course
The bike is rolling, with ≈600 m (1,969 ft) of climbing on the bike and ≈130 m (427 ft) of climbing on the run.
Swim Bike Run · Watch the replay on the map →
Bike · 89.4 km56 mi · ≈ +600 m1,969 ft · from 0 to 45 m0 to 148 ft
Run · 20.9 km13.0 mi · ≈ +130 m427 ft · from 0 to 31 m0 to 102 ft
Difficulty
#83 hardest of 125
vs. the average IRONMAN 70.3: −1.9% · swim +0.2% · bike −1.5% · run +0.6%
Elevation filtered for terrain-model noise; a bike computer may read differently.
IRONMAN 70.3 Goseong weather & water temperature
| Edition | Air swim / bike / run | Wind | Rain | Water | AG wetsuit |
|---|---|---|---|---|---|
| 2026 | 20°C68°F / 22°C71°F / 27°C80°F | 3 km/h2 mph | 0.0 mm0.00 in | 24°C75°F * | Legal |
| 2025 | — | — | — | 22°C71°F * | Legal |
| 2024 | — | — | — | 24°C76°F * | Legal |
* Satellite estimate (sea surface at start time). Wetsuit rules →
IRONMAN 70.3 Goseong reviews
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