This race has finished.

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

Status updated: June 18, 2026

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Saitama

Full Marathon

The 26th Sports Mate Run Sai-ko Marathon

第26回スポーツメイトラン彩湖マラソン

Date

October 4, 2025

Location

Saitama

Venue

彩湖道満グリーンパーク多目的広場

Distance

Full Marathon

Event	Entry Fee	Time Limit	Capacity
Full Marathon	¥5,000	5h	—
30km	¥4,500	5h	—
Half Marathon	¥4,000	3h	—
10km	¥3,500	—	—
Family (Parent & Child)	—	—	500 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; a 5-km loop course

Cutoffs & time limit

Full Marathon: 5.5 hours; 30 km: 5 hours; Half Marathon: 3 hours; 10 km, 5 km, Parent-Child, and 20 km Relay: No time limit

Finisher rewards

Participation prizes will be awarded; completion certificates (with times printed, issued on the day of the event) will be provided; and awards will be presented to the top three finishers in each event.

Changing & baggage

Luggage Storage: Blue tarps provided (valuables only can be stored for 500 yen)

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

AI summary

RELAY

Team format & legs

The 20-km relay consists of teams of 2 to 4 runners, who pass the baton to complete a total of four laps of a 5-km course. The running order and number of laps are up to the team.

Team composition rules

Teams consist of 2 to 4 people. Anyone is eligible to participate.

Solo / small team

Not allowed

Course format

Looped (relay-style)

Time limit

There is no time limit for the 20km relay. The time limits are 5.5 hours for the full marathon, 5 hours for the 30km race, and 3 hours for the half marathon.

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

Bib pickup

Bib pickup is on race day at the venue. There is no postal delivery of bibs.

Notes

Bibs are only distributed on race day at the venue, making this race effectively inaccessible to overseas runners who cannot attend in person. Notifications are sent by email 2 days before the event.

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

Runner Reviews

REVIEWS

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Overall Score

3.1

/ 5.0 · 6-axis avg

Official site →

Overseas entry not available