Race Details

~coast to coast~ Crossing of Boso Peninsula 2017

Mt. Nokogiri Conservation Project partner event

A dramatic course over the nearly 70 km from sea to sea across Chiba’s Boso Peninsula, starting with the rising sun and ending with the sunset. Although much of the course travels a forested route, the constantly changing landscape and road surfaces keep runners stimulated. The endless slopes of the mountain pass are a true challenge, but one that leaves runners with a feeling like no other when they reach the finish.

Race date

Sunday, Dec. 17, 2017, rain or shine.

May be canceled in the event of extreme weather.

Race Location

Check-in Venue

Kominato Elementary School Gymnasium


Awa Kominato / Uchiura Kaigan, Kamogawa, Chiba


Kanaya Tokyo Bay Ferry Terminal, Futtsu, Chiba

Award Ceremony Venue

Kanaya Ferry Service Center


The Fish


68km Crossing of Boso Peninsula


800 people


Awa Kominato / Uchiura Kaigan, Kamogawa – Kaikyo-ji, Kamogawa – Momji Road – Nokogiriyama, Kyonan-machi – Kanaya Tokyo Bay Ferry Terminal, Futtsu

Time Limit

13 hours(6:00 start /19:00 finish)


People 18 years or older in good health with the ability, fitness and energy to complete the entire race within the time limit without getting lost, and who agree to the participation conditions and participant’s pledge.

Participation Conditions:

  • 1. Participants must be able to deal with the kinds of problems to be expected in an event of this nature, whether due to environmental changes (rain, wind, fog, cold temperatures, etc.) or to physical discomfort (fatigue, internal complaints, muscle pain, mild injuries, etc.) by themselves.
  • 2. Participants must understand that as part of an outdoor event in a wild area, when confronted with safety-related issues they must respond appropriately and help each other to the best of their individual abilities.
  • 3. Participants must understand and respect the natural environment of the course area and show appropriate consideration so as not to interfere with conservation efforts or the lives of local residents.
  • 4. Participants grant all rights for use of their name and likeness while participating in the race, including photographs, video, results etc. in both print and online articles media, to the race organizer.

Entry Fee

16,000 yen (includes participant’s premium goods, race insurance and other expenses)

* Accommodation / pick-up package (includes accommodations, pre-race dinner, bus transportation to start)
* 500 yen from each entry will be donated to conservation work efforts at Mt. Nokogiri.


Run net

Opening Date: Saturday, July 22
Closing Date: Friday, Nov. 24


Boso Crossing / Mt. Nokogiri Trail Executive Committee

Supported by

The City of Futtsu, The City of Kamogawa, The City of Kimitsu, The City of Kyonan, Futtsu Tourism Association, Kamogawa Tourism Association, others (partial listing)

Additional Support

Kanaya District Association, Japan Adventure Race Association, others


Adidas Japan, All Sports Community, others

Planning and operation