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12th Toyosu Seaside Marathon (第12回 豊洲のうみべマラソン)

calendar_today 03 Oct, 2026

directions_run Running

sell $11.38 – $33.37

12th Toyosu Seaside Marathon (第12回 豊洲のうみべマラソン)

About the Event

Set in a park jutting out into Tokyo Bay, surrounded by water on all sides, this is a flat running course with no elevation change. There are also plenty of shopping centers and entertainment facilities near the park, so you can enjoy sightseeing and shopping in the area after the race too. Come make the most of a sporty autumn day! Entry fees: Half Marathon ¥5,280, Relay Marathon (per person) ¥3,600, 10km ¥4,880, 5km ¥4,680, Mini Marathon ¥3,980, Parent-Child Pair Marathon (1 pair) ¥3,980, Challenge Run ¥1,800

Races Offered

10km

Oct 03, 2026

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Distance — 10K

terrain

Type — Running

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51 days remaining

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$30.84

5km

Oct 03, 2026

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Distance — 5K

terrain

Type — Running

timer

51 days remaining

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$29.58

Challenge Run (400m)

Oct 03, 2026

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Distance — 0.4K

terrain

Type — Running

timer

51 days remaining

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$11.38

Half Marathon (21.0975km)

Oct 03, 2026

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Distance — 21.1K

terrain

Type — Running

timer

51 days remaining

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$33.37

Mini Marathon (2.5km)

Oct 03, 2026

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Distance — 2.5K

terrain

Type — Running

timer

51 days remaining

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$25.15

Parent-Child Pair Marathon (2.5km)

Oct 03, 2026

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Distance — 2.5K

terrain

Type — Running

timer

51 days remaining

sell

$25.15

Relay Marathon (21km)

Oct 03, 2026

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Distance — 21K

terrain

Type — Running

timer

51 days remaining

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$22.75

Weather History

These values represent the 3-year monthly averages for October in Koto.

thermostat Temperature
15.5° / 22.6°
wb_sunny Feels like
13.7° / 22.2°
light_mode Avg sunshine hours
6h 54m
water_drop Avg rainfall
4.3 mm
ac_unit Avg snowfall
air Avg wind speed
13.3 km/h (Gentle breeze)
opacity Sweat loss rate
Moderate
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Moderate (4.0)
humidity_mid Humidity
77.0%
wb_twilight Sunrise
05:47
nightlight Sunset
17:04

Hotels & Places to Stay

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