This race has finished.

The next edition is undecided. Please check the official site.

Status updated: June 18, 2026

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Tochigi

Full Marathon

2026 Watarase Flood Control Reservoir Winter Marathon

2026渡良瀬遊水地ウインターマラソン

Date

February 23, 2026

Location

Tochigi

Venue

下宮橋を渡って左手広場

Distance

Full Marathon

Event	Entry Fee	Time Limit	Capacity
Full Marathon	¥5,000	5h	—
Half Marathon	¥4,000	3h	—
10.8km	¥3,500	—	—
5.4km	¥3,000	—	—
Family (Parent & Child)	—	—	1,000 runners

Finish Rate

—

Last updatedJune 18, 2026·14 days agoOfficial site checkedJune 18, 2026

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AI summary

COURSE

Course profile

Flat (PB-friendly)A flat, easy-to-run course. The course is 5.4 km per lap.

Cutoffs & time limit

Full Marathon: 5.5 hours; Half Marathon and Half Relay: 3 hours; 10.8 km, 5.4 km, and Parent-Child Races: No time limit

Water stations

Each lap is 5.4 km long, with two water stations. We plan to provide water and sports drinks, as well as snacks such as bananas and chocolate.

Finisher rewards

Commemorative gifts will be awarded to the top three finishers in each event. Finisher certificates will be issued immediately on the day of the event (with times printed on them). Special perks are available based on the number of times you’ve participated.

Changing & baggage

Changing tents are available. Luggage storage is provided on blue tarps (valuables only; 500 yen per item).

Summary for guidance. Always confirm details on the official site. Last verified: June 22, 2026

AI summary

RELAY

Team format & legs

Half Marathon Relay Division: Teams of 2 to 4 runners complete a total of 4 laps (approximately 21 km) of a 5.4 km loop course, passing the baton from runner to runner. Only the first runner runs approximately 524 meters less. The running order and number of laps are flexible.

Team composition rules

Teams of 2 to 4 players. Open to boys and girls in middle school and above.

Solo / small team

Not allowed

Course format

Looped (relay-style)

Venue & setup

Changing tents are available. Luggage storage area (blue tarp) is available. Valuables storage: 500 yen.

Time limit

Half Marathon Relay Time Limit: 3 hours

Summary for guidance. Always confirm team rules on the official site. Last verified: June 22, 2026

Access

ACCESS

Note: the map shows the approximate area. Check the official site for the exact start/venue.

Score

RATINGSAuto-calculated from market research, official data, and online voicesSome scores unavailable（3/6）

Course Appeal

コースの魅力

N/A

Organization & Support

運営・サポート

N/A

Finishability

完走しやすさ

1.4

Atmosphere

大会の盛り上がり

N/A

Access

アクセス

3.0

Value for Money

コスパ

5.0

Entering from overseas

INBOUND

Overseas entry not available

Entry platform

UP RUN (up-run.jp) / Sports Mate Run

Bib pickup

Bibs are collected on race day at the venue reception; there is no advance postal delivery of bibs or entry documents.

Notes

Bib pickup is in-person on race day only, making this race effectively inaccessible without being present in Japan. Race details are communicated by email (Japanese). No mention of overseas entry support.

Summary for guidance. Always confirm details on the official site. Last verified: June 22, 2026

Runner Reviews

REVIEWS

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No runner reviews for this race yet.

Overall Score

3.1

/ 5.0 · 6-axis avg

Official site →

Overseas entry not available