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Shonan International Marathon 2025

When:  December 7, 2025

Start Time:  9:00 am

Where: Kanagawa, Japan

Eligibilty: Men & women aged 18 and over who can complete a full marathon within 5 hours 45 minutes

Application Period: Open now until August 31, 2025, or until capacity is reached, whichever comes first.

Shonan is a stunning coastal region located just an hour south of Tokyo by train. The marathon begins and ends in the historic seaside town of Oiso, once a retreat for Japan’s aristocracy, and follows a scenic route along pristine beaches with breathtaking views of Mt. Fuji. Nearby attractions include the cultural treasures of Kamakura and the renowned hot spring town of Hakone.

2024 Data:
Number of Entries: 15,762
Number of Finishers: 14,653
Finish Rate: 93%

Course Map

Tour Package

Package Includes:

  • 2 nights accommodation at the Oiso Prince Hotel
  • Check in:  December 6, 2025
  • Check out: December 8, 2025
  • Daily breakfast
  • 10% consumption tax and service charge
  • Access to THERMAL SPA S WAVE (Guests with tattoos are not allowed to enter the spa)
  • Hotel Website: https://www.princehotels.co.jp/oiso/

Package does not include:

  • Flights to/from Japan
  • Guaranteed race entry for the runners
  • Airport Transportation
  • Meals (Except where noted) 
  • Incidentals
  • Travel Insurance 
  • Personal Expenses

Tour Price

  • The rate shown above is per person for 2 nights 3days including 10% consumption tax and service charge.
  • The above runner’s tour price includes the marathon entry fee.
  • The marathon fee is non-refundable even if canceled before the cancellation fee for the travel contract applies, in accordance with the rules of the event office.
  • The right to participate will be revoked in accordance with the regulations of the marathon executive committee office.
  • THERMAL SPA S.WAVE access available throughout your stay. (Tattoos are not allowed to enter the spa.)

Bring your own bottle/Earth-Friendly Marathon

The Shonan International Marathon is the world’s first major marathon to eliminate paper cup and plastic bottle waste at its aid stations.

Please note: water stations will not provide paper cups or plastic bottles. Runners must carry their own bottle with at least 200ml of water at the start. Bringing a reusable cup is also recommended to enjoy other beverages provided along the course.

There are approximately 200 hydration points—one every 200 meters—throughout the course.

This link will direct you to an external registration site operated by our parent company, Kinki Nippon Tourist Co., Ltd. (KNT) in Japan, a partner travel agency of the Shonan International Marathon 2025

YouTube Video

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