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5th Arakawa Eco Marathon (Horigoe Area) (第5回 荒川エコマラソン（堀切エリア）)

Japan flag
Horigiri Suimei Koen, Chiba, Japan

calendar_today 04 Oct, 2026

directions_run Running

language Official Website

sell $20.64 – $33.54

Register Now
5th Arakawa Eco Marathon (Horigoe Area) (第5回 荒川エコマラソン（堀切エリア）)

About the Event

Run for the environment at the Eco Marathon, where sustainability is at the heart of every race. The event features bicycles as lead vehicles and utilizes solar power to meet all electrical needs on site. Number cards are reused to minimize waste.
This year's lineup includes a half marathon, a 10K run, and a fun run with both solo and family categories for those looking to enjoy the day together. With its flat course, this event is perfect for runners aiming to set new personal records or simply enjoying their first race experience in a supportive environment. The scenic route offers participants an opportunity to explore while contributing positively to environmental conservation efforts.
The Eco Marathon promises not only athletic achievement but also a commitment to sustainability and community engagement. Join us on October 4, 2026, for a day filled with running, fun activities, and eco-friendly practices that make this event truly unique.

Races Offered

10K

Oct 04, 2026

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Distance — 10K

terrain

Type — Running

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16 days remaining

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$27.09

10K Veteran (Age 65 and above on race day)

Oct 04, 2026

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Distance — 10K Veteran (Age 65 and above on race day)

terrain

Type — Running

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16 days remaining

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$22.57

Fun Run 5km (Parent-Child Division • Solo Division)

Oct 04, 2026

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Distance — Fun Run 5km (Parent-Child Division • Solo Division)

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Type — Running

timer

16 days remaining

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$20.64

Half Marathon

Oct 04, 2026

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Distance — 21.1K

terrain

Type — Running

timer

16 days remaining

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$33.54

Half Marathon Veteran (Age 65 and above on race day)

Oct 04, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

16 days remaining

sell

$29.02

Weather History

These values represent the 3-year monthly averages for October in Horigiri Suimei Koen.

thermostat Temperature
15.2° / 22.7°
wb_sunny Feels like
13.8° / 22.3°
light_mode Avg sunshine hours
6h 59m
water_drop Avg rainfall
4.3 mm
ac_unit Avg snowfall
—
air Avg wind speed
11.8 km/h (Light breeze)
opacity Sweat loss rate
Moderate
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Moderate (4.0)
humidity_mid Humidity
77.5%
wb_twilight Sunrise
05:47
nightlight Sunset
17:04

Hotels & Places to Stay

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