Distance
Start Time
Cutoff
Terrain
Difficulty
Max Runners
Runners take on the streets of Kazo, a city in Saitama Prefecture known for its koinobori carp streamers and its handmade udon. The 10 km sets off from the south side of Kazo City Hall, while the 5 km, 3 km, 1 km, parent and child 1 km and 500 m fun run start at the intersection in front of Kazo Civic Sports Park, and every division finishes inside the park itself. Racing is on paved city roads, with a 90-minute limit for the 10 km and progressively shorter cut-offs for the smaller divisions. There is no check-in on the day: number cards and timing chips are posted to entrants in advance, and the opening ceremony begins at 8:00 before the first start at 8:40.
Runs through the streets of Kazo, a city famous for its koinobori carp streamers and handmade udon
Every race finishes at Kazo Civic Sports Park
Divisions for all ages, from 10 km down to a 500 m fun run and a 1 km parent and child race
Start / Finish
10 km: south side of Kazo City Hall. 5 km, 3 km, 1 km, parent and child 1 km and 500 m fun run: the intersection in front of Kazo Civic Sports Park
Kazo Civic Sports Park
Race Day
What to bring
Number card (posted in advance)
Timing chip (posted in advance)
What you get
Finisher certificate
Chip timing
Towel printed with a koinobori design
Kazo handmade udon association common meal voucher (330 yen subsidy)
Number card and timing chip posted to entrants before the event
Coin lockers at the venue
Shop on site
Guest appearances planned from meteorologist Nobuyuki Hirai, triathlete Ai Ueda, the Saitama Seibu Lions Ladies and the Heisei International University track and field team
Sports injury insurance taken out by the organiser
On the day
Merchandise
Before you enter
Other questions
No. The event does not hold an athlete check-in. Your number card and timing chip are posted to the address you registered with, so please bring them on the day. Make sure your registered address is correct, because items cannot be delivered if it is wrong.
Every entrant receives a towel printed with a koinobori design and a common meal voucher worth a 330 yen subsidy that can be used at member restaurants of the Kazo handmade udon association. Drinks are also provided, and a record certificate is issued.
Parent and child entries must be made in the name of the parent or guardian who will run with the child.
Yes. There is no nationality restriction, but entrants must be in good health, under 18s need parental consent, and everyone must agree to all of the entry terms and conditions.
Capacity across all divisions is 5,000: 2,000 for the 10 km, 1,200 for the 5 km, 500 for the 3 km, 300 for the 1 km, 350 pairs (700 runners) for the parent and child 1 km, 200 for the fun run and 100 for the plogging category. The previous edition drew 4,116 participants, and the winning 10 km times were 31:58 for men and 38:37 for women.
Kazo, Japan
Sunday, December 6, 2026
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