Distance
Start Time
Cutoff
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Max Runners
The only certified full marathon in Fukushima Prefecture and the largest race of the day. It starts at Iwaki Athletics Stadium and finishes by the water at Onahama Port Aquamarine Park, and it is open to men and women aged 18 or over, with separate divisions for JAAF-registered runners and general entries. The time limit is six hours, and there are cut-off checkpoints along the way.
Seaside finish at Onahama Port Aquamarine Park
Aid stations stocked with Iwaki's famous sweets and local specialities
Hula town atmosphere with loud roadside cheering
The only certified full marathon course in Fukushima Prefecture
Qualification
Start / Finish
Iwaki Athletics Stadium for the full marathon; Onahama Port Aquamarine Park for the 10km, 5km and 2km races
Onahama Port Aquamarine Park
Terrain
Route
Getting There
Expo
Race Day
What you get
Finisher t-shirt
Finisher certificate
T-shirt participation award
Web finisher certificate
Drinks
Bath, sightseeing facility and shopping mall discount vouchers
Sports injury insurance taken out by the organiser
On the day
Bag drop
Food vendors
Merchandise
Marshals on course
First aid on course
Before you enter
Other questions
Entry opens on 11 September 2026 at 12:00 and closes on 15 October 2026 at 23:59. Entry is first come, first served, so registration closes early once the field is full.
No. There is no on the day registration desk, so remember to bring everything that was posted to you.
Bring your My Number health insurance card or qualification confirmation document. You must also write the emergency contact details of someone other than yourself on the back of your race number card.
Yes, baggage storage is available, excluding valuables. Bags belonging to full marathon runners are transported to the finish at Onahama Port Aquamarine Park.
Yes. Doctors, nurses and emergency life saving technicians are invited to run as medical runners and give initial care to anyone who becomes unwell on the course. Choose the category marked Medical Runner when you enter, then upload your qualification documents through My Page between 11 September 12:00 and 22 October 23:59. Those who submitted documents for the 17th edition generally do not need to upload again.
Iwaki, Japan
Sunday, February 28, 2027
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