19th Arakawa Half Marathon & 30km Presented by BOOST (第19回 荒川ハーフマラソン&30km Presented by BOOST)

Japan flag Tokyo, Chiba, Japan

72 days left

19th Arakawa Half Marathon & 30km Presented by BOOST (第19回 荒川ハーフマラソン&30km Presented by BOOST) www.sportsentry.ne.jp
Date 23 Jan, 2027
Races 16 distances
Entry fee $17.86 – $36.37
Runner rating Be the first to rate
19th Arakawa Half Marathon & 30km Presented by BOOST (第19回 荒川ハーフマラソン&30km Presented by BOOST)

About the event

The Arakawa Half Marathon offers runners an affordable and well-organized race experience with top-notch timing technology, abundant pace setters, and enthusiastic guest support. Whether you're a first-time competitor or preparing for a full marathon, the unique atmosphere of this event is sure to be memorable.
Entry fees are kept low compared to other races, ensuring accessibility without compromising on quality services such as precise timekeeping and real-time results updates through an official website. Runners receive individual timing tags that ensure accurate lap times throughout the course, with instant access to their finishing times and rankings online upon completion of the race.
Guest appearances have been a highlight in previous editions, providing motivational support along the route. The event also boasts numerous pace setters catering to various target paces from 4-minute kilometers down to 6-minute kilometers, spaced at intervals for optimal pacing guidance.
As an added bonus, all participants receive a one-month subscription to YOGAEVENT.jp's extensive online yoga program featuring over forty classes. This gift is designed specifically to aid in post-race recovery and prepping for future events.
The Arakawa Half Marathon promises both seasoned runners and newcomers alike an engaging race day experience with its blend of competitive spirit, supportive atmosphere, and convenient digital services.

Races offered

23Jan

10km: Men (Junior High School and Above) [Early Bird]

Running

Distance
10K
Countdown
72 days
Entry fee
$20.42
23Jan

10km: Men (Junior High School and Above) [Standard]

Running

Distance
10K
Countdown
72 days
Entry fee
$23.61
23Jan

10km: Women (Junior High School and Above) [Early Bird]

Running

Distance
10K
Countdown
72 days
Entry fee
$20.42
23Jan

10km: Women (Junior High School and Above) [Standard]

Running

Distance
10K
Countdown
72 days
Entry fee
$23.61
23Jan

30km: Men (Junior High School and Above) [Early Bird Discount]

Running

Distance
30K
Countdown
72 days
Entry fee
$33.18
23Jan

30km: Men (Junior High School and Above) [Standard]

Running

Distance
30K
Countdown
72 days
Entry fee
$36.37
23Jan

30km: Women (Junior High School and Above) [Early Bird]

Running

Distance
30K
Countdown
72 days
Entry fee
$33.18
23Jan

30km: Women (Middle School and Above) [Standard]

Running

Distance
30K
Countdown
72 days
Entry fee
$36.37
23Jan

5km: Men (Junior High School and Above) [Early Bird]

Running

Distance
5K
Countdown
72 days
Entry fee
$17.86
23Jan

5km: Men (Junior High School and Above) [Standard]

Running

Distance
5K
Countdown
72 days
Entry fee
$21.05
23Jan

5km: Women (Junior High School and Above) [Early Bird]

Running

Distance
5K
Countdown
72 days
Entry fee
$17.86
23Jan

5km: Women (Junior High School and Above) [Standard]

Running

Distance
5K
Countdown
72 days
Entry fee
$21.05
23Jan

Half Marathon (21.1km): Men (Junior High School and Above) [Standard]

Running

Distance
21.1K
Countdown
72 days
Entry fee
$29.99
23Jan

Half Marathon (21.1km): Men (Middle School and Above) [Early Bird]

Running

Distance
21.1K
Countdown
72 days
Entry fee
$26.80
23Jan

Half Marathon (21.1km): Women (Middle School Age and Above) [Early Bird]

Running

Distance
21.1K
Countdown
72 days
Entry fee
$26.80
23Jan

Half Marathon (21.1km): Women (Middle School Age and Above) [Standard]

Running

Distance
21.1K
Countdown
72 days
Entry fee
$29.99

Weather history

3-year monthly averages for January in Tokyo.

Temperature1.1° / 10.0°
Feels like-4.1° / 5.7°
Sunshine hours7h 52m
Rainfall1.1 mm
Snowfall—
Wind13.5 km/h (Gentle breeze)
Humidity63.4%
Max UV indexLow (2.0)
Sweat lossLow
Course conditionsFirm and slightly soft
Sunrise06:47
Sunset16:50

About Tokyo

Learn more about the host city, Tokyo.

Scenic view of

Tokyo, officially the Tokyo Metropolis, is the capital and most populous city of Japan. The population of the city proper was over 14 million as of 2023. The Greater Tokyo Area, which includes Tokyo and parts of six neighboring prefectures, is the third-most populous metropolitan area in the world, with 33 million residents as of 2025.

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