Trailrace logo
Find your race Upcoming Find a Qualifier
Search Dashboard Saved Races Calendar
Trailrace logo

Helping the trail running community discover, plan for, and thrive at the world's best trail races.

Find Races

  • Search all trail races
  • Explore collections
  • Race series
  • Race qualifiers

Races by Location

  • Colorado trail races
  • California trail races
  • Utah trail races
  • Arizona trail races
  • Washington trail races
  • All US trail races

Lottery Odds

  • Western States 100
  • Hardrock 100
  • High Lonesome 100
  • UTMB
  • All calculators

Company

  • About
  • Roadmap
  • Terms of service
  • Privacy policy

Feedback

  • Send Feedback
  • Feature Requests
  • Report a Bug

© 2026 Trailrace.co. All rights reserved.

Built on bad decisions in Boulder, CO.

Kaga Spa Trail Endurance 100K

Basic Listing
  1. UTMB
  2. 2026 Edition

Japan's UTMB debut: a night through 1,300-year-old mountain hot spring country

Directions
This event took place on June 20, 2026

Nearby races

Other trail races within 141 miles

Kaga Spa Trail Endurance 50K

Kaga Spa Trail Endurance 50K

50K
Kaga, Ishikawa, JP
Jun 21, 2026
35.23 miles
8,550 ft gain
Loop
Lake Biwa 100
Lottery
Qualifier Req

Lake Biwa 100

100 Mile
Komono, Mie, JP
Oct 30, 2026
105.63 miles
30,460 ft gain
Point to Point
Crew
Dropbags
94 mi away
Okushinano 100K

Okushinano 100K

100K
Kijimadaira, Nagano, JP
Jun 6, 2026
62.14 miles
15,750 ft gain
Loop
Crew
Pacers
Dropbags
110 mi away
Mt. Fuji 100
Lottery
Qualifier Req

Mt. Fuji 100

100 Mile
Fujiyoshida, Yamanashi, JP
Apr 24, 2026
103.77 miles
25,370 ft gain
Point to Point
Crew
Dropbags
141 mi away
All trail races in Japan→
June 20, 2026
Saturday 6:30pm GMT+9 start
Kaga, Ishikawa
Japan
97.4 km
Point to Point Course
5,122 m
Elevation Gain
Open Registration
No lottery
No Service Requirement
Does not require trail or volunteer work
No Qualifier
No qualifier race required
Very Challenging
Experienced ultrarunners
Links
WebsiteInstagramFacebook
2025
Established
39%
Finish Rate

What Makes It Great

Japan's first UTMB World Series event puts runners through the ancient forested mountains above Yamanaka Onsen — one of Japan's oldest hot spring towns. The 100K departs at dusk from Yukemuri Kenkou Village, sending runners into the primeval beech forests and along the ridgelines of Kanan Sanzan through the night. The course traverses Kaga City's mountain backbone via steep climbs to Mt. Kariyasu, the Kutani Dam watershed, and deep forest trails before descending into the historic spa town for a finish on the stage of the 1,300-year-old Yamanaka-za theater. Mandatory bear bells reflect the course's genuine wilderness character — wildlife including bears inhabits the entire route.

Difficulty

Advanced
7/10

Experienced ultrarunners

Night Running
Steep Climbing
Technical Terrain
Technical Descent
Variable Weather
Remote Terrain

Race Highlights

Japan's first UTMB World Series
Inaugural 2025 edition made history as the first UTMB event in Japan, drawing 800 international runners from 42 countries
18:30 evening start
Saturday dusk departure means most runners complete 10+ hours of mountain running in complete darkness
Bear bells required
Wild bears inhabit the entire course; a bear bell is mandatory gear for all three race distances
Finish at a 1,300-year-old theater
All events conclude on the stage of Yamanaka-za, a cultural landmark at the heart of one of Japan's oldest spa towns
UTMB World Series 3 Running Stones
Finishers earn 3 UTMB Running Stones; top 3 overall M/F receive a paid CCC Finals qualification

Finish Awards

Finisher Medal
Included in race entry for all finishers, along with finisher certification.
CCC Finals Qualification (Paid Slot)
1st through 3rd place overall Male and Female receive a direct paid qualification to the CCC (Finals event).
Overall Trophy
1st through 5th place overall Male and Female receive a trophy.
Age Group Trophy
1st through 3rd in each age group Male and Female receive a trophy (excluding overall award winners).

Kaga Spa Trail Endurance 100K

Kaga, Ishikawa, JapanJune 20, 2026

June 20, 2026
Course map for Kaga Spa Trail Endurance 100K
DistDistance97.4 km
GainElevation Gain5,122 m
LimitCutoff27 h
Night RunningSteep ClimbingTechnical DescentVariable WeatherRemote Terrain

Entry Timeline

Race DayJune 20, 2026

Lottery

This event uses open registration - no lottery entry required.

Qualifier

This event does not require a qualifier for entry.

Service Requirement

This race does not have a service requirement for entry.
97.4 km
Distance
Point to Point
Route
27h
Cutoff Time
345 m
Average Elevation
5,122 m
Total Ascent
4,307 m
Total Descent
941 m
High Point
37 m
Low Point
Course map
Launch Course Explorer

Aid Stations

LocationkmElevation
Yukemuri Kenkou Village
Start
0.078 m
Mt. Kariyasu
Aid Station
8.7520 m
Ouchi
Aid Station
16.7257 m
Kutani Dam
Aid Station
27.2195 m
Kutani Shinsui Park
Aid Station
38.4222 m
Manago
Aid Station
44.9518 m
Suginomizu-kawa
Aid Station
60.3449 m
Kenmin no Mori
Aid Station
63.2329 m
Imadate IOS Square
Aid Station
69.8111 m
Takigahara
Aid Station
81.784 m
Tonoo
Aid Station
90.249 m
Yamanaka-za
Finish
97.470 m

Sign in to see cutoffs, crew access, drop bags, and services for every aid station.

No on-site camping available

Crew Access Points

Pacer Rules

No Pacers Allowed

Crew Rules

  • Crew access permitted at designated checkpoints marked 'K Checkpoint with assistance permitted' on the course map. A supporter shuttle bus runs from Kaga Onsen Station and surrounding onsen towns to the race venue on June 20-21.
Weather
Rain/Wet Conditions

Race held during Japan's tsuyu (梅雨) rainy season in June; significant rainfall and mud are common, especially on steep forest trails

Heat Training Recommended

Temperatures can reach 34-35°C in lower elevations; extreme heat was a major factor in the 2025 inaugural DNF rate

Gear Rules

Trekking poles allowed

Required Gear

No required gear specified

Recommended Gear

No recommended gear specified

Race Reports

Race on the Brink: Report on the Operational Failure of the 2025 Kaga Spa Trail Endurance 100 by UTMB
By Go Asia Trail • 2025

Race reports from other Kaga Spa Trail Endurance 100 events

KagaSpa 100 by UTMB 50K 2025 ReviewKaga Spa Trail Endurance 50K
By Trail Whisperer • 2025

Reviews

to write a review.

No reviews for this event yet. Be the first to share your experience!