Name: Senbako Challenge Marathon 2026 Winter (3K/6K/9K/12K/Half/30K) (千波湖チャレンジマラソン2026冬(3k/6k/9k/12k/ハーフ/30k))
Start: 2026-12-13
End: 2026-12-13
Location: Senba Park

Senbako Challenge Marathon 2026 Winter (3K/6K/9K/12K/Half/30K) (千波湖チャレンジマラソン2026冬(3k/6k/9k/12k/ハーフ/30k))

Senba Park, Japan

calendar_today 13 Dec, 2026

directions_run Running

language Official Website

sell $9.68 – $29.02

About the Event

Races over 3K, 6K, 9K, 12K, the half marathon and 30K are held on a 3,000 m loop around Lake Senba. The course is JAAF certified, a rarity, with a paved, almost flat asphalt surface, distance markers every 100 m and signs every 500 m. The start is at the Komon statue plaza in Senba Park.
The half marathon and 30K begin in groups by target time, so the race works well as training. In the half, group A targets under 1:40, B 1:40 to 2:15 and C 2:15 to 3:00. In the 30K, A targets within 2:15, B 2:15 to 3:15 and C 3:15 to 4:00. Entry comes in early, normal and late tiers.

Races Offered

Late: 12k

Dec 13, 2026

straighten

Distance — 12K

terrain

Type — Running

timer

63 days remaining

sell

$19.35

Late: 30k Group A (Target: Within 2 hr 15 min)

Dec 13, 2026

straighten

Distance — 2 Hours

terrain

Type — Running

timer

63 days remaining

sell

$29.02

Late: 30k Group B (Target: 2 hr 15 min to 3 hr 15 min)

Dec 13, 2026

straighten

Distance — 2 Hours

terrain

Type — Running

timer

63 days remaining

sell

$29.02

Late: 30k Group C (Target: 3 hr 15 min to 4 hr)

Dec 13, 2026

straighten

Distance — 3 Hours

terrain

Type — Running

timer

63 days remaining

sell

$29.02

Late: 3k

Dec 13, 2026

straighten

Distance — 3K

terrain

Type — Running

timer

63 days remaining

sell

$16.12

Late: 6k

Dec 13, 2026

straighten

Distance — 6K

terrain

Type — Running

timer

63 days remaining

sell

$16.12

Late: 9k

Dec 13, 2026

straighten

Distance — 9K

terrain

Type — Running

timer

63 days remaining

sell

$16.12

Late: Half Marathon Group A (Target: Within 1 hr 40 min)

Dec 13, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

63 days remaining

sell

$25.80

Late: Half Marathon Group B (Target: 1 hr 40 min to 2 hr 15 min)

Dec 13, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

63 days remaining

sell

$25.80

Late: Half Marathon Group C (Target: 2 hr 15 min to 3 hr 00 min)

Dec 13, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

63 days remaining

sell

$25.80

[Early Bird] 12k

Dec 13, 2026

straighten

Distance — 12K

terrain

Type — Running

timer

63 days remaining

sell

$12.90

[Early Bird] 30k Group A (Target: 2h15m or Under)

Dec 13, 2026

straighten

Distance — 0K

terrain

Type — Running

timer

63 days remaining

sell

$22.57

[Early Bird] 30k Group B (Target: 2h15m-3h15m)

Dec 13, 2026

straighten

Distance — 0K

terrain

Type — Running

timer

63 days remaining

sell

$22.57

[Early Bird] 30k Group C (Target: 3h15m-4h)

Dec 13, 2026

straighten

Distance — 4 Hours

terrain

Type — Running

timer

63 days remaining

sell

$22.57

[Early Bird] 3k

Dec 13, 2026

straighten

Distance — 3K

terrain

Type — Running

timer

63 days remaining

sell

$9.68

[Early Bird] 6k

Dec 13, 2026

straighten

Distance — 6K

terrain

Type — Running

timer

63 days remaining

sell

$9.68

[Early Bird] 9k

Dec 13, 2026

straighten

Distance — 9K

terrain

Type — Running

timer

63 days remaining

sell

$9.68

[Early Bird] Half Marathon Group A (Target: 1h40m or Under)

Dec 13, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

63 days remaining

sell

$19.35

[Early Bird] Half Marathon Group B (Target: 1h40m-2h15m)

Dec 13, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

63 days remaining

sell

$19.35

[Early Bird] Half Marathon Group C (Target: 2h15m-3h00m)

Dec 13, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

63 days remaining

sell

$19.35

[Regular] 12k

Dec 13, 2026

straighten

Distance — 12K

terrain

Type — Running

timer

63 days remaining

sell

$16.12

[Regular] 30k Group A (Target: 2h15m or Under)

Dec 13, 2026

straighten

Distance — 0K

terrain

Type — Running

timer

63 days remaining

sell

$25.80

[Regular] 30k Group B (Target: 2h15m-3h15m)

Dec 13, 2026

straighten

Distance — 0K

terrain

Type — Running

timer

63 days remaining

sell

$25.80

[Regular] 30k Group C (Target: 3h15m-4h)

Dec 13, 2026

straighten

Distance — 4 Hours

terrain

Type — Running

timer

63 days remaining

sell

$25.80

[Regular] 3k

Dec 13, 2026

straighten

Distance — 3K

terrain

Type — Running

timer

63 days remaining

sell

$12.90

[Regular] 6k

Dec 13, 2026

straighten

Distance — 6K

terrain

Type — Running

timer

63 days remaining

sell

$12.90

[Regular] 9k

Dec 13, 2026

straighten

Distance — 9K

terrain

Type — Running

timer

63 days remaining

sell

$12.90

[Regular] Half Marathon Group A (Target: 1h40m or Under)

Dec 13, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

63 days remaining

sell

$22.57

[Regular] Half Marathon Group B (Target: 1h40m-2h15m)

Dec 13, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

63 days remaining

sell

$22.57

[Regular] Half Marathon Group C (Target: 2h15m-3h00m)

Dec 13, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

63 days remaining

sell

$22.57

Runner Reviews

Read what other athletes have to say about their experience at the Senbako Challenge Marathon 2026 Winter (3K/6K/9K/12K/Half/30K) (千波湖チャレンジマラソン2026冬(3k/6k/9k/12k/ハーフ/30k)).

★ ★ ★ ★ ★

No reviews yet

Be the first to share your experience with the community!

Recommended for You

Hand-picked events we think you’ll love.

Oct 11, 2026

Race For Open Space

Enjoy the fall colors on the beautiful rolling trails of the Cedar Lakes Conservation Foundation’s Fox Hill Nature Pres…

Oct 11, 2026

Enon 5k Run/Walk

Proceeds will benefit The Special Wish Foundation & The Greenon Cross Country Team. Registration: $35 by September 30th…

Oct 11, 2026

Kitty Beanz Cat 5k

It’s the first Annual Kitty Beanz Cat 5k & Pet market! Hosted by Kitty Beanz Coffee & supporting Rocky Mountain Feline …

Oct 11, 2026

Running Scared 5K/13K - Richland

Get ready for a spine-tingling race experience at the Running Scared 5K & 13K—where thrills, chills, and fast times col…

Log in

Sign Up

Organizer Sign Up

Senbako Challenge Marathon 2026 Winter (3K/6K/9K/12K/Half/30K) (千波湖チャレンジマラソン2026冬(3k/6k/9k/12k/ハーフ/30k))

About the Event

Races Offered

Late: 12k

Late: 30k Group A (Target: Within 2 hr 15 min)

Late: 30k Group B (Target: 2 hr 15 min to 3 hr 15 min)

Late: 30k Group C (Target: 3 hr 15 min to 4 hr)

Late: 3k

Late: 6k

Late: 9k

Late: Half Marathon Group A (Target: Within 1 hr 40 min)

Late: Half Marathon Group B (Target: 1 hr 40 min to 2 hr 15 min)

Late: Half Marathon Group C (Target: 2 hr 15 min to 3 hr 00 min)

[Early Bird] 12k

[Early Bird] 30k Group A (Target: 2h15m or Under)

[Early Bird] 30k Group B (Target: 2h15m-3h15m)

[Early Bird] 30k Group C (Target: 3h15m-4h)

[Early Bird] 3k

[Early Bird] 6k

[Early Bird] 9k

[Early Bird] Half Marathon Group A (Target: 1h40m or Under)

[Early Bird] Half Marathon Group B (Target: 1h40m-2h15m)

[Early Bird] Half Marathon Group C (Target: 2h15m-3h00m)

[Regular] 12k

[Regular] 30k Group A (Target: 2h15m or Under)

[Regular] 30k Group B (Target: 2h15m-3h15m)

[Regular] 30k Group C (Target: 3h15m-4h)

[Regular] 3k

[Regular] 6k

[Regular] 9k

[Regular] Half Marathon Group A (Target: 1h40m or Under)

[Regular] Half Marathon Group B (Target: 1h40m-2h15m)

[Regular] Half Marathon Group C (Target: 2h15m-3h00m)

Hotels & Places to Stay

Runner Reviews

No reviews yet

Suggest an edit

Recommended for You

Race For Open Space

Enon 5k Run/Walk

Kitty Beanz Cat 5k

Running Scared 5K/13K - Richland

Get race deals & updates

Race Experience

Suggest an edit

Share this event