せとうちオープンウォータースイミング(OWS) in 渋川
玉野市, Okayama, Japan
Scheduled
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Key facts
Timing
Available
Race options
Distances
Open-water swimming
1.25km
- Swim
- 1.25 km
1.25km
Open-water swimming
2.5km
- Swim
- 2.5 km
2.5km
Open-water swimming
5km 一般
- Swim
- 5 km
5km
Open-water swimming
5km 日本選手権トライアルの部
- Swim
- 5 km
5km
Open-water swimming
625m
- Swim
- 0.625 km
0.625km
Open-water swimming
ワンウェイスイム 3km
- Swim
- 3 km
3km
Course profile
Course details from reviewed or official sources.
1.25km
General course profile
General course information for this distance. Details may not be confirmed specifically for this edition year.
- Course format
- Loop
- Laps
- 2
- Cutoff time
- 1h
- Cutoff notes
- Official 2026 outline: 1.25 km limit 1 hour.
Open water
- Water type
- Ocean
- Water body
- 渋川海岸（瀬戸内海）
- Swim start position
- Beach
- Wetsuit rule
- Allowed
- Wetsuit notes
- General events: wetsuit and rash guard allowed.
- Swim laps
- 2
2.5km
General course profile
General course information for this distance. Details may not be confirmed specifically for this edition year.
- Course format
- Loop
- Laps
- 4
- Cutoff time
- 1h 30m
- Cutoff notes
- Official 2026 outline: 2.5 km limit 1h30. Tide/current may change course.
Open water
- Water type
- Ocean
- Water body
- 渋川海岸（瀬戸内海）
- Swim start position
- Beach
- Wetsuit rule
- Allowed
- Wetsuit notes
- General events: wetsuit and rash guard allowed. Championship-trial 5 km forbids them.
- Swim laps
- 4
5km 一般
General course profile
General course information for this distance. Details may not be confirmed specifically for this edition year.
- Course format
- Loop
- Laps
- 8
- Cutoff time
- 2h
- Cutoff notes
- Official 5 km general limit 2 hours. Tide/current may change course; recorded as notes only.
Open water
- Water type
- Ocean
- Water body
- 渋川海岸（瀬戸内海）
- Swim start position
- Beach
- Wetsuit rule
- Allowed
- Wetsuit notes
- General events: wetsuit and rash guard allowed regardless of temperature. Japan Championship Trial 5 km (different Offering) forbids wetsuits.
- Swim laps
- 8
5km 日本選手権トライアルの部
General course profile
General course information for this distance. Details may not be confirmed specifically for this edition year.
- Course format
- Loop
- Laps
- 8
- Cutoff time
- 1h 30m
- Cutoff notes
- Official 2026 outline: championship-trial 5 km limit 1h30 (stricter than 5 km 一般 2h).
Open water
- Water type
- Ocean
- Water body
- 渋川海岸（瀬戸内海）
- Swim start position
- Beach
- Wetsuit rule
- Not allowed
- Wetsuit notes
- Championship trial: wetsuit, rash guard, and rubber suits forbidden; FINA-approved suit required.
- Swim laps
- 8
625m
General course profile
General course information for this distance. Details may not be confirmed specifically for this edition year.
- Cutoff time
- 30m (gun time)
- Cutoff notes
- Official 2026 大会概要: 625m 制限時間 30分. Independent of 3 km 90 min.
Open water
- Water type
- Ocean
- Water body
- 渋川海岸
- Swim start position
- Beach
ワンウェイスイム 3km
General course profile
General course information for this distance. Details may not be confirmed specifically for this edition year.
- Course format
- Point-to-point
- Cutoff time
- 1h 30m (gun time)
- Cutoff notes
- Official 2026 大会概要: ワンウェイ スイム 3km 制限時間 1時間30分. Table start 9:30 vs schedule 9:40 was not converted into overall cutoff.
Open water
- Water type
- Ocean
- Water body
- 渋川海岸
- Swim start position
- Beach
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