| Date |
June 5th（Fri.）～June 7th（Sun.）,2026
|
| Start/Finish |
Kijimadaira Village
Nagano
Japan
|
| Office Address |
Okushinano100 Race Committee |
| Phone number |
080-4375-3853 |
| Email address |
mailto... |
| Website |
https://okushinano100.com |
| PR |
■ Event Features
(1) This is the Oku-Shinano running trail, featuring a primeval beech forest with 300-year-old trees, beautiful rural scenery, ancient roads, and paths leading to orchards!
(2) Event staff will cheer on runners with enthusiastic support!
(3) There is a parking lot near the start and finish line that can accommodate approximately 500 cars.
(4) We provide a bathing facility where participants can take a bath immediately after the race. No need to travel by bus covered in sweat.
(5) We also hold races for kids and preschoolers to encourage young runners to take on the challenge.
(6) We aim to create a permanent long trail and are committed to preserving the trails in the Oku-Shinano area. |
| Registration period |
【100km】【50km】From December 14, 2025 21:00 Open until Feb 28, 2026
【25km】【8km】【Kids】From December 14, 2025 21:00 Open until May 10, 2026 |
| Venue/Reception venue |
Kijimadaira Village,Nagano
The Cupid of Romance Snow Resort
3876-2 Kamikijima,Kijimadaira
Village,Shimotakai District,Nagano Prefecture |
| Course |
Kijimadaira Village and Trail around Mt.Kosha |
| Category |
100km、50km、25km、8km
Elementary school student/preschooler 500m～2km |
| Entry Fees |
100km Racer 31,000yen
100km Pacer 12,000yen
50km 15,500yen
25km 9,900yen
8km 5,000yen
Elementary school student/preschooler 3,000yen |
| Awards |
【100km】
Prize:Top 6 male and female finishers
Age Group:Top 3 in each gender :39 and under,40s,50s,60 and over
【50km】
Prize:Top 6 male and female finishers
Age Group:Top 3 in each gender :39 and under,40s,50s,60 and over
【25km】
Prize:Top 6 male and female finishers
Age Group:Top 3 in each gender :39 and under,40s,50s,60 and over
【8km】
Prize:Top 6 male and female finishers
【Elementary school student/preschooler】
Prize:1st-2nd grade,3rd-4th grade,5-6grade,preschooler Each Top 6 male and female finishers |
| Participation Gifts |
【100km】【50km】Original socks
【25km】【8km】【Pacer】Tenugui (Japanese hand towel)
【Elementary school student/preschooler】T-shirt |
| Points awarded |
【100km】
ITRA 4point
Western States100 2027 Qualifying race
【50km】
ITRA 3point
【25km】
ITRA 1point |
| Race Organaizer |
Okushinano100 Race Committee |
| Management |
ALP SKI TEAM/Sportheim ALP |
| Race Producer |
Takuya Yamada |
| Course Directer |
Hiroshi Kimura |
| Support |
Kijimdaira Village、Nakano City、Yamanouchi Town |
| Race Categories |
【100km】
Distance: 100km
Elevation Gain: 4800m
Start Date: June 6th(Sat.)5:00
Time Limits: 21hours(with 7 cut off points)
A field size limited to: 700 runners
One pacer is allowed per runner.（from 27km point）
【100km Pacer】
Pacer Meeting Points
・ Start
・27km - Aid Station A2( The Cupid of Romance Snow Resort)
・38km - Aid Station A4 (Kayanodaira)
・48km - Aid Station A5 (Kayanodaira)
・72km - Aid Station A6 (Nukasen)
Important Notes for Pacers
・Pacers must use the“ Pacer Access Bus” to reach their assigned meeting point and join their runner. Please refer to the Access page for details.
・The “Pacer Access Bus” is for pacers only. Support crews may not use this pass.
・ Pacers are not allowed to carry a runner’s gear or provide any physical assistance such as pushing or pulling during the race.
・ At aid stations, pacers may help with tasks such as preparing or handing over nutrition and gear
【50km】
Distance: 50km
Elevation Gain: 2500m
Start Date: June 6th(Sat.)11:30
Time Limits: 10hours30min.(with 3 cut off points)
A field size limited to: 400 runners
【25km】
Distance: 25km
Elevation Gain: 1500m
Start Date: June 6th(Sat)7:00
Time Limits 7hours(with 1 cut off point)
A field size limited to:300 runners
【8km】
Distance: 8km
Elevation Gain: 380m
Start Date: June 6th(Sat)7:30
Time Limits 2hours(no cut off point)
A field size limited to:300 runners
【Elementary school student/preschooler】
DIstance 500m～2km
Start Date: June 6th(Sat)14:00
A field size limited to: 300 runners |
| Race Schedule |
■June 5th (Fri.)
13:00 Registration opens for 100km/50km/25km/8km and pacer.
Mandatory gears will be checked upon registration.
18:00 Registration closes.
※Registration for 100km is only available on the day before the
race.
※You need to show your ID(passport,driver license,etc.) at registration.
■June 6th (Sat.)
4:00 Opening
5:00 100km start／Registration of Pacer Opens／25km Registration Opens／8km Registration Opens
6:30 50km Registration Opens／25km Registration closes
7:00 25km start／8km Registration closes
7:30 8km start
8:00 Pacer Acsess Bus starts for A4,A5
9:30 8km Awards ceremony Finish(Cut-off time)
10:30 Pacer Registration closes
11:00 Pacer Acsess Bus Starts for A4,A5(via A6)／50km Pegistration closes
11:30 50km start
12:30 25km Awards ceremony
12:30 Registration Opens
13:30 Registration closes
14:00 25km Finish(Cut-off time)／Start Awards ceremony sequentially
14:30 Pacer Acsess Bus starts for A4,A5(via A6)
15:30 Pacer Acsess Bus starts for A4,A5
17:00 Pacer Acsess Bus starts for A4,A5(via A6)
20:30 100km Awards ceremony
21:00 50km Awards ceremony Flnish ceremony
22:00 50km Finish(Cut-offtime)
■June 7th(Sun.)
1:00 100km Finish ceremony
2:00 100km・Pacer Finish(cut-off time) |
| Qualification |
・Those who are 18 years old or above(100km/50km/25km category) ※Those under 20 years old must have consent of a parent or guardian
・Those who can follow the rules and manners of the mountain(Okushinano100 policy)
・Those who are confident to complete the course within the time limit and without getting lost
100km: 21hours(with 6 cut off points)
50km: 11hours(with 2 cut off points)
25km: 5hours and 30 min.(with 1 cut off point) |
| Time Limits |
【100km】21hours
Race cut-off ♯1 27km(Cupid of Romance Snow Resort）6hours
Race cut-off ♯2 38km(Kayanodaira Water Aid Staition) 10hours30min.
Race cut-off ♯3 48km(Kayanodaira Aid Staition1) 11hours30min.
Race cut-off ♯4 58km(Kayanodaira Aid Staition2) 13hours30min.
Race cut-off ♯5 72km(Nukasen Aid Station2) 15hours30min.
Race cut-off ♯6 84km(Keyakinomori Aid Station) 17hours30min.
Race cut-off ♯7 95km(Nukasen Aid Station3) 19hours30min.
Race cut-off at finish line 100km(Cupid of Romance Snow Resort) 21hours.
【50km】10hours30min.
Race cut-off ♯1 13km(Kayanodaira Water Aid Staition) 4hours
Race cut-off ♯2 23km(Kayanodaira Aid Staition1) 5hours
Race cut-off ♯3 33km(Kayanodaira Aid Staition2) 7hours
Race cut-off at finish line 50km(Cupid of Romance Snow Resort) 10hours30min.
【25km】5hours30min.
Race cut-off ♯1 13km(Donguri Park）2hours30min.
Race cut-off at finish line 25km(Cupid of Romance Snow Resort) 5hours30min.
【8km】2hours
Race cut-off at finish line 8km(Cupid of Romance Snow Resort) 2hours |
| Mandatory Gear(100km/50km/Pacer) |
1．Mobile phone（with the number reported at the time of entry）
2．Portable Cup
3．Water (1liter or more ) and Food necessary for each runner
4．Survival blanket（at least 130cm×200cm）
5．Taping tape
6．Course map（download from the event website or use a smartphone or watch with GPX uploded）
7．Rain wear with hood（jacket,GORE-TEX or other waterproof/breathable material with seam-taped seams）
8．First aid kit（bandage,antiseptic,etc）
9．Headlamp and spare batteries（Additional lights may be carried instead of spare batteries.)
10．Bear bell |
| Recommended Gear(100km/50km/Pacer) |
・Rain pants
・Pole（※Use of poles is prohibited in Kayanodaira area,48km～58km course）
・Bear bell
・Gloves
・Flashing/reflector light （to be easily recognized by vehicles driving at night）
・Poison remover
※Mandatory gears will be checked at the registration desk.
Mandatory gears that has been checked must not be changed afterwards.
※ ※Mandatory gearst will be checked on the race course. Any competitor found to be lacking in Mandatory gears will be disqualified and not allowed to run on the competition course regardless of the reason. |
| Mandatory Gear(25km) |
1．Mobile phone（with the number reported at the time of entory）
2．Portable Cup
3．Water and Food necessary for each runnner
4．Course map（download from the event website or use a smartphone or watch with GPX uploded）
5．Rain wear with hood（jacket,GORE-TEX or other waterproof/breathable material with seam-taped seams）
6．Bear bell |
| Recommended Gear(25km) |
・Survival blanket
・Taping tape
・First aid kit（bandage,antiseptic,etc）
・Rain pants
・Pole
・Gloves
※Mandatory gear will be checked on the race course. Any competitor found to be lacking in the mandatory gear will be disqualified and not allowed to run on the competition course regardless of the reason. |
| Recommended Gear(8km) |
・Mobile phone（with the number reported at the time of entry）
・Course map（download from the event website or use a smartphone or watch with GPX uploded）
・Rain wear with hood（jacket,GORE-TEX or other waterproof/breathable material with seam-taped seams）
・Water (1liter or more ) and Food necessary for each runner
・Survival blanket（at least 130cm×200cm）
・Taping tape
・First aid kit（bandage,antiseptic,etc）
・Rain pants
・Bear bell
・Gloves |
| Baggage storage |
All categories
・Storage time: 6/6（Sat） 4:00-6/7（Sun） 2:30
・Location:next to the event reception
We can not keep any valuables.
The race is not responsible for your valuables. Bags will not be provided. Please check in all your luggage together. |
| Drop bag |
100km racers are allowed to put their drop bags at 27km point.
50km,25 km and 8km racers can not use drop bag.
We can not keep any valuables. |
| Shuttle bus |
We have a shuttle bus service between JR Iiyama Station and Venue/Reception venue （The Cupid of Romance Snow Resort）.
※Shuttle bus fee:JPY500
※There is no shuttle bus from Venue（Reception venue） to accommodations.
※Race participants ,volunteer staffs and supporters can take the shuttle bus.
［6/5（Fri）］
13:30/15:30/17:30 Departure
Iiyama Station →Venue/Reception venue（The Cupid of Romance Snow Resort）
15:00/17:00 Departure
Venue/Reception venue（The Cupid of Romance Snow Resort）→Iiyama Station
［6/6（Sat） ］
9:00 Departure
Iiyama Station →Venue/Reception venue（The Cupid of Romance Snow Resort）
19:00/21:00 Departure
Venue/Reception venue（The Cupid of Romance Snow Resort）→Iiyama Station
［6/7（Sun）］
9:00 Departure
Venue/Reception venue（The Cupid of Romance Snow Resort）→Iiyama Station |
| Pacer Shuttle Bus Information |
A shuttle bus for pacers will operate from The Cupid of Romance Snow Resort to the pacers’ starting points: Kayanodaira Aid Station and Nukasen Aid Station.
Please use this service to reach your designated start area.
Boarding Location
In front of of The Cupid of Romance Snow Resort
Operation Date
［6/6(Sat)］
8:00 Departure
The Cupid of Romance Snow Resort → Kayanodaira Aid Station
11:00 / 14:30 / 15:30 Departure
The Cupid of Romance Snow Resort → Nukasen Aid Station →Kayanodaira Aid Station
17:00 Departure
The Cupid of Romance Snow Resort → Nukasen Aid Station
Notes
・The Pacer Shuttle Bus is for pacers only. Supporters are not permitted to use this service. |
| Retirees |
・Racers can withdraw from the race only at the aid stations as a general rule.
・If you have to withdraw from the course due to an unavoidable circumstances, please report to the nearest staff member and follow his/her instructions.
・Race-tracking chips（with Race bib） must be returned to the aid staff.If the race-tracking chip is not returned,you will be charged a fee as compensation.
・The medical staff may request racers to quit the race if he/she is considered not in a good condition.
・If you withdraw from the race,you need to stay at the aid station until you are picked up and transferred ti the finish point by an official transportation. |
| Rules |
【Okushinano100 policy】
Save mountain rules and mannerrs.
1．Never drop trash → Prepare a special pocket for trash!
2．Pick up at least one piece of trash → Every time you enter a mountain, the mountain gets a little cleaner!
3．Greet people twice → once 10m before and once more as you pass them. Show your appreciation!
4．Hikers have priority → Don’t forget to say “After you!
5．Walk when passing or overtaking hikers → Running gives them a sense of fear.
6．Stay on the trail → Do not step on plants.
7．Strictly no headphones → Dangerous to not be able to hear warnings and greetings. Enjoy the sounds of nature!
8．Bring equipment to protect your own life → Essential equipment, water, salt, energy, etc.
9．Have a sense of respect for temples and shrines → Thanks from the bottom of your heart.
10．Remember to be thankful to the mountain. →Before entering the mountain, we say, “Thank you. |
| Support and Cheering |
Support and cheering are available at venue and Donguri ,Kayanodaira,Keyakinomori park aid station.
※not available at Nukasen aid station because there is no parking lot
※ ※The private support at out of the support area specified by the organizer in Kayanodaira must pay the charge(500yen/day) for Kayanodaira Information Center. |
| Convention participation pledge |
In order to ensure the safe conduct of the event, please understand
and agree to the following items before participating in the event.
• In the natural environment, there is a possibility of encountering
bears, bees, and other animals that can harm humans.
• The participant accepts all responsibility for his/her own
participation in the event.
• I will pay attention to my health condition and participate in the event after having trained sufficiently and being in perfect physical condition with no heart disease, etc.
• I will participate in the race with the required equipment.
• The participant will follow the instructions of the organizer while participating in the event.
• In the event that the participant is injured or causes injury to others, the participant accepts full responsibility for his/her own injuries and will not make any claim against the organizer for expenses or damages related to injuries.
• No refund will be claimed for any reason, such as cancellation or change of events, after the payment procedure has been completed.
• Please attach your given number card to the front in a visible position. Don't lie about age or gender. Only the applicant can participate. If we find false info, we can cancel your participation and awards. The organizer decides on future eligibility. We are not responsible for false info or proxies." |
| Changes and cancellations |
・The event may be cancelled or its content changed due to inclement weather or circumstances in the surrounding environment that may affect the smooth operation of the event. In the above cases, the organizer will contact you via your e-mail address by 5:00 p.m. on the day before the race.
・The organizers reserve the right to change or reduce the course or cancel the event at their discretion in the event of unforeseen circumstances such as earthquakes or other natural disasters, inclement weather, illness, incidents, accidents, etc.
・The organizers will decide how to notify the participants of any cancellation or course change/reduction during the event.
・No refunds will be made for any reason after the payment procedure has been completed. |
| Refund Policy for Event Cancellation |
This event relies on participant fees to cover over 90% of its costs.
If the event is affected by bad weather, earthquakes, disasters, incidents, accidents, or pandemics after registration, the organizer may decide on changes, including event reduction, cancellation, and refund details. |
| Handling of Personal Information |
・Personal information submitted at the time of application for participation in the event will be managed by the Race Committee and used only to the extent necessary for the operation of the event (insurance coverage, sending of materials, etc.).
・The copyright and portrait rights to photographs taken by staff members during the event belong to the organizers. The event participant agrees that images, photographs, articles, records,
etc. (personal information such as name, age, gender, record, portrait, etc.) of the tournament may be used on the Internet, in printed matter, mass media, etc., and that
the copyright, publication rights, and usage rights belong to the organizer.
・The organizer will not use the personal information of the applicants for any purpose other than to provide necessary information regarding the event. |
| Insurance |
The race provides the following insurance coverage.
Death and permanent disability: 1 million yen
Hospitalization: 1,500 yen/day
Hospital visit:1,000yen
※We do not have mountain insurance. We recommend that you purchase it on your own. |
| Other notes |
・Any additions or changes will be posted on our website and facebook page. |
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