Sunday, December 6, 2026
Distance
Start Time
Cutoff
Terrain
Difficulty
Max Runners
The headline race of the day and the largest field, capped at 19,500 runners including overseas entries and the training frame. Entries closed early on 24 April 2026 once every category reached capacity.
World's first My Bottle Marathon, with zero disposable cups or PET bottles on the course
Shonan coastline and Sagami Bay scenery, with Enoshima among the sights
Paved coastal roads along the Seisho Bypass
Finish inside the Oiso Prince Hotel car park
Around 95 percent of runners have backed the eco-friendly bottle system
Qualification
Start / Finish
Near the Oiso Nishi interchange on the Seisho Bypass (Run & Walk 1.4 km: near the Nishihama footbridge intersection, Fujisawa City)
Inside the Oiso Prince Hotel car park (Run & Walk 1.4 km: near the Nishihama footbridge intersection, Fujisawa City)
Terrain
Route
Getting There
Race Day
What to bring
My bottle carrying at least 200 ml of water
Full Marathon: start carrying a 'my bottle' holding at least 200 ml of fluid
Fun Run 10km: start carrying a 'my cup'
What you get
Finisher certificate
Chip timing
THE NORTH FACE official event T-shirt as the participant award
Finisher medal for every finisher (one per parent and child pair in the 2 km family run)
Web finish certificate
Number card and timing tag sent by post in advance (dispatch planned for mid-November 2026)
Shop on site
On the day
Merchandise
Marshals on course
Before you enter
Other questions
Yes. Every runner must start carrying a my bottle holding at least 200 ml of water. Because drinks are offered along the course, carrying a my cup as well is strongly recommended.
It is the entry page for runners joining a coached running clinic, and the fee includes a place in the race. There are three classes, Tokyo Basic, Shonan Basic and Shonan Beginner, and the fee is 55,000 yen, made up of a 16,500 yen race entry and a 38,500 yen training fee.
Entry opened at 20:00 on 4 April 2026 and was scheduled to close on 27 April 2026, but every category reached capacity and entries were closed early on 24 April. Entries always close as soon as a category fills, even before the published deadline.
Yes. Entries are cancelled if payment is not made by the payment deadline, so paying early is recommended.
Oiso, Naka District, Japan
Sunday, December 6, 2026
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€90
entry fee