01Dec
2month 100km Stage 1
Running
- Distance
- 100K
- Countdown
- 17 days
- Entry fee
- N/A
Shimanto River Ultra Marathon Online Challenge [Year-end 1-Month 100km] (四万十川ウルトラマラソン オンラインチャレンジ【Year-end 1month 100km】)
![Shimanto River Ultra Marathon Online Challenge [Year-end 1-Month 100km] (四万十川ウルトラマラソン オンラインチャレンジ【Year-end 1month 100km】)](/media/races/logos/year-end-1month-100km-logo.jpg){kind=logo}
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Shimanto River Ultra Marathon Online Challenge [Year-end 1-Month 100km] (四万十川ウルトラマラソン オンラインチャレンジ【Year-end 1month 100km】)
About the event
Why not aim to finish alongside us, thinking of the Shimanto River, Japan's 'last clear stream'? Whether you've run the Shimanto River Ultra Marathon before, or have always dreamed of running it someday, we warmly welcome your participation.
Entry fees vary by finisher gift tier. All tiers include a T-shirt. (T-shirt only ¥4,990; Shimanto udon noodles or long-sleeve T-shirt ¥6,990; pole-caught local bonito straw-seared tataki, or cap, or pants, or hoodie ¥8,990; Shimanto beef (sukiyaki-cut or yakiniku-cut) or Shimanto eel or original apparel set (cap, long-sleeve T-shirt, pants, hoodie) ¥12,990)
Races offered
01Dec
2month 100km Stage 2
Running
- Distance
- 100K
- Countdown
- 17 days
- Entry fee
- N/A
01Dec
3month 100km
Running
- Distance
- 100K
- Countdown
- 17 days
- Entry fee
- N/A
01Dec
November Run 1month 100km
Running
- Distance
- 100K
- Countdown
- 17 days
- Entry fee
- N/A
01Dec
October Run 1month 100km
Running
- Distance
- 100K
- Countdown
- 17 days
- Entry fee
- N/A
01Dec
Training 1month 100km
Running
- Distance
- 100K
- Countdown
- 17 days
- Entry fee
- N/A
01Dec
Year-end 1month 100km
Running
- Distance
- 100K
- Countdown
- 17 days
- Entry fee
- N/A
Weather history
3-year monthly averages for December in .
Temperature-3.1° / 5.2°
Feels like-7.6° / 1.1°
Sunshine hours8h 1m
Rainfall1.0 mm
Snowfall0.3 cm
Wind8.9 km/h (Light breeze)
Humidity69.6%
Max UV indexLow (2.0)
Sweat lossLow
Course conditionsFirm and slightly soft
Sunrise06:46
Sunset16:29
About
Learn more about the host city, .
Gunma Prefecture is an inland prefecture of Japan located in the Kantō region of Honshu. Gunma Prefecture has a population of 1,937,626 and has a geographic area of 6,362 square kilometres (2,456 sq mi). Gunma Prefecture borders Niigata Prefecture and Fukushima Prefecture to the north, Nagano Prefecture to the southwest, Saitama Prefecture to the south, and Tochigi Prefecture to the east.
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