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Nagano

Trail

The 4100D Mountain Trail in Nozawa Onsen

The 4100D マウンテントレイル in 野沢温泉

Date
July 19, 2026
Location
Nagano
Venue
長野県野沢温泉村一帯
Distance
Trail
Entry Fee
Time Limit
17h
Capacity
800 runners
Finish Rate
Last updatedJune 23, 2026·9 days agoOfficial site checkedJune 18, 2026

AI summary

TRAIL

Aid stations

StandardThere will be two aid stations: one at the Olympic Sports Park and one at Yamabiko Station at the top of the Nagasaka Gondola. At Yamabiko Station, we plan to provide rice balls, nozawana (pickled mustard greens), soup, water, salt, fruit, jelly, and more. No paper cups will be provided (you must bring your own cup).

Mandatory gear

Race NumberRunner IC ChipCocoheli TransmitterGPS device (watch or smartphone acceptable)Flashlight + Spare Flashlight + Spare BatteriesRain gear (hooded rain jacket + rain pants, Gore-Tex, etc.)Winter ClothingSnacks for on the goBear BellCourse MapCompassDrinks (1,000 ml or more)First Aid Supplies (Non-Compressive Taping Tape)Travel CupEmergency BlanketWhistleMyNa Health Insurance CardRed flashing lightSmartphone
Gear check at registration

Time limit & cutoffs

65 km: Time limit 17 hours, 4 checkpoints (Yamabiko Station 11:00 / 15 km, Olympic SP 13:00 / 22 km, 16:00 / 36 km, Yamabiko Station 22:00 / 48 km). 37 km: Time limit 9 hours 30 minutes, 2 checkpoints (Yamabiko Station 1:00 PM / 15 km, Olympic SP 3:00 PM / 22 km). 14 km: Time limit 5 hours, no checkpoints. 7 km: Time limit 2 hours, no checkpoints.

Trekking poles

Allowed with conditionsThe use of trekking poles is permitted, but there are some sections where they cannot be used (they cannot be used when circling the hot spring town). Please check the course map.

Course preview

Not allowedThere are sections of the race course where test runs are not permitted, except on hiking trails. Please refrain from test runs, as there are dangerous areas such as ski slopes and mountain bike trails.

Summary for guidance. Always confirm mandatory gear and rules on the official site. Last verified: June 19, 2026

Access

ACCESS

Note: the map shows the approximate area. Check the official site for the exact start/venue.

Score

RATINGSAuto-calculated from market research, official data, and online voicesSome scores unavailable4/6

Course Appeal

コースの魅力

N/A

Organization & Support

運営・サポート

N/A

Finishability

完走しやすさ

0.0

Atmosphere

大会の盛り上がり

N/A

Access

アクセス

3.0

Value for Money

コスパ

N/A
Course AppealN/AOrganization & SupportN/AFinishability0.0AtmosphereN/AAccess3.0Value for MoneyN/A

Runner Reviews

REVIEWS
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Overall Score

1.5

/ 5.0 · 6-axis avg