This race has finished.

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

Status updated: June 17, 2026

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Chiba

To be determined

Tateyama Wakashio Marathon

館山若潮マラソン

Date
January 25, 2026
Location
Chiba
Distance
To be determined
Entry Fee
¥8,000
Time Limit
6h
Capacity
5,000 runners
Finish Rate
—
Last updatedJune 17, 2026·15 days agoOfficial site checkedJune 18, 2026
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AI summary

COURSE

Cutoffs & time limit

A full 6 hours. Checkpoint 1 (approx. 10 km) at 11:25, Checkpoint 2 (approx. 21 km) at 12:50, Checkpoint 3 (approx. 27 km) at 13:40, Checkpoint 4 (approx. 33 km) at 14:30. 10 km in 1 hour and 30 minutes.

Water stations

Eight full aid stations (at approximately 6, 11, 15, 21, 27, 32, 37, and 40 km). In addition to sports drinks and water, bananas, chocolate, salt tablets, barley tea, milk crackers, and salted yokan will be provided.

Start method

Full Marathon starts at 10:00, 10km race at 10:50, and Fun Run at 11:00. No on-site registration (bibs will be mailed in advance).

Finisher rewards

Participation Prize: Original towel and items provided by Shiseido. Finisher’s Prize: Original medal. Awards: Overall 1st–3rd place in the men’s and women’s Full Marathon and 10K categories (trophy and certificate); 1st–3rd place in each age group (medal and certificate).

Changing & baggage

Luggage storage is available (advance reservation required; fee applies). Temporary restrooms are available (at the venue, shuttle bus stops, etc.).

Summary for guidance. Always confirm details 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

2.6

Atmosphere

大会の盛り上がり

N/A

Access

アクセス

3.0

Value for Money

コスパ

4.7
Course AppealN/AOrganization & SupportN/AFinishability2.6AtmosphereN/AAccess3.0Value for Money4.7

Entering from overseas

INBOUND

Possible via an entry platform

How to enter

Online entry via RUNNET only. Bibs are mailed in advance to the address provided at registration.

Entry platform

RUNNET (runnet.jp) — free registration required. The site is in Japanese and may present language and address-field hurdles for overseas runners.

What you need

Must be able to complete the course within the time limit (full marathon: 6 hours; net time under 5h50m). No explicit overseas restriction stated, but a valid delivery address for bib mailing is needed.

Payment

Credit card, convenience store payment, or ATM (bank transfer) via RUNNET. A handling fee applies (6% for entries over ¥4,000).

Bib pickup

No on-site bib pickup — bibs and timing chips are mailed in mid-January to the address registered at entry. There is no race-day reception desk.

Entry period

General entry: 14 September – 13 November 2025. Furusato-nozei (donation) entry: 12 September – 31 October 2025.

On race day

An English version of the Athlete Guide is available on the official website. The race has an ENGLISH page on the site.

Notes

Participation prizes (towel, etc.) are distributed on race day at the venue and are not mailed. No-show refunds or entry transfers are not permitted under any circumstances.

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

Runner Reviews

REVIEWS
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Overall Score

3.4

/ 5.0 · 6-axis avg

Official site →