Race Around Japan

Trail Races by Fields (2019)

In an average year, Fields organizes 15 races and hosts approximately 10,000 participants - making Fields Japan's #1 trail run race organizer. 

Who Are They?

Based in Japan, Fields is a forward-thinking company specializing in outdoor sports event planning and race organizing.

Since its establishment in 2000, all of Fields events have been designed with the aim to contribute to the local community and environment. Led by Haruyuki Nonoyama, races organized by Fields draw thousands of trail-running enthusiasts from around the nation – and the world. On average, Fields organizes 15 races a year and hosts approximately 10,000 participants – making Fields the nation’s #1 trail run race organizer. 

Fields delivers superb races that combine the best of Japan's natural landscapes

The Fields Difference

Distance, difficulty, and appeal differ greatly but each trail run race by Fields boasts a unique local flavor in some of Japan’s most highly-acclaimed outdoor environments. From the peaks of the Japanese Alps to the rolling hills of our northernmost prefecture, Fields delivers superb races that combine the best elements of Japan’s natural landscapes. 

Through outdoor sports, Fields encourages the pursuit of an active and healthy lifestyle for beginner and advanced trail runners alike. Fields is also committed to making a positive impact towards supporting and revitalizing rural communities around Japana that graciously play host to many races.

Joining a Fields event is not only good for your health – it’s great for the community!

Make new friends before the race, confront personal challenges on the trails, and (re)discover new possibilities in Japan!

Fields x Samurai Sports

This year, Fields is excited to partner with Samurai Sports for seven races, based primarily in Hokkaido, Nagano, and Hiroshima. This collaboration makes races more accessible for all trail runners, regardless of their ability to communicate in Japanese.

With Samurai Sports, the information needed to register for, compete in, and successfully complete races will be in English. The language barrier becomes one less headache, allowing participants to race and explore Japan stress-free.

By making Japan’s trail races more accessible and offering English-language support, Fields hopes to introduce and invite the international community of outdoor enthusiasts to dive into the world of trail running in Japan. 

From the most competitive of trail runners to the casual outdoor enthusiast, Fields looks forward to welcoming international athletes from all corners of the world. Check out the races below and sign up for one today!

hiroshima osorakan trail logo
sapporo teine trail race logo
utsukushigahara trail race logo
mt taisetsu trail logo
shinshu togakushi logo
  • Hiroshima Osorakan
  • Skyline Sugadaira
  • Sapporo Teine
  • Utsukushigahara
  • Taisetsuzan
  • Tokachidake
  • Shinshu-Togakushi

Fields also collaborates with race organizers in:

  • Hong Kong
  • Taiwan

Read about Fields’ alliance with The Green Race of Hong Kong

Hiroshima Osorakan

Hiroshima

Mid-May 2020 (details Dec 2019)

65, 22KM

hiroshima osorakan trail logo

One of western Japan’s toughest trail races, the Hiroshima Osorakan Trail Race is a challenging course requiring runners to traverse the highest peaks of both Hiroshima and Shimane Prefectures. Intermediate to advanced athletes will find this race suitably difficult as they climb the equivalent of sea level to the summit of Mt. Fuji.

Unique for its looped course, runners will encounter the rousing cheer of supporters up to three times on the 67KM run. Line up with some of the nation’s hardiest trail runners and see where you stand! 

View 2019 photos

  • 2019 Elevation Profile (65KM)
  • 2019 Course Map: 65KM, 22KM
  • 2019 Elevation: +1,320m/4,330ft (65KM), N/A (22KM)
  • 2019 Cut Off Times (COT): 15 hours (65KM), 6 hours 30 minutes (22KM)
  • ITRA Points: Endurance 3 (65KM)
  • Capacity: 450 (65KM), 350 (22KM)

  • This area is difficult to access by public transportation. We recommend taking a private vehicle or rental car. Please ensure you have lodging and transportation plans figured out BEFORE registering for this event.
  • This race is not beginner-friendly. Please be a responsible athlete and only register if you feel confident about your abilities, the distance, and race logistics (including before and after the race).

Learn more about the race

Registration: TBA

Fees
65KM:
 ¥15,300 

22KM: ¥8,500
・Races organized by Fields include the following charges in this order: (a) entry/registration fee + (b) a flat rate ¥1,000 English support fee (by request from Fields) + (c) Samurai Sports’ service charge (¥1,000 up to ¥10,000; 10% of entry/registration fee above ¥10,001). 
・The amounts reflected above and in Samurai Sports’ information are inclusive of all three parts, namely (a), (b), and (c). This is the final sum you should expect your credit card to be charged for one (1) entry/registration without additional add-ons.
・Stress less with Samurai Sports. Learn why Samurai Sports implements a service charge.

runner during Hiroshima Osorakan trail race
runner during Hiroshima Osorakan trail race

Skyline Sugadaira

Nagano

Early June 2020 (details Jan 2020)

50, 22, 5KM, 100m

Now celebrating its 12th year, Skyline Sugadaira treats runners to some of Nagano’s most spectacular views. Enjoy the stunning landscape as you traverse the Japan Alps, scramble down the ski slopes, and run above the clouds!

With routes that are more than 90% trail and well-stocked aid stations, trail lovers won’t be disappointed. Panoramic views of Nagano, Mt. Asama, and even Mt. Fuji will be a regular treat along the course. Those seeking a reprieve from the concrete jungles of the city can bask in the cool breezes of early summer in Sugadaira – experience it for yourself!

・Read 2018 race report
・View 2019 photos
・View 2018 photos

  • 2019 Elevation Profile (50KM, 22KM)
  • 2019 Course Map 
  • 2019 Elevation: +2,560m/8,399ft (50KM), +1,291m/4,236ft (22KM), +300/984ft (5KM)
  • 2019 Cut Off Times (COT): 11 hours (50KM), 7 hours (22KM), 2 hours (5KM)
  • 2019 Capacity: 500 (50KM), 250 (22KM), 150 (5KM), 100 (100m)
     
  • Public transportation to this area is very limited. We recommend taking a private vehicle or utilizing the charter bus service (add’l fees apply). Please ensure you have lodging and transportation plans figured out BEFORE registering for this event.
  • Please be a responsible athlete and only register if you feel confident about your abilities, the distance, and travel logistics (including before and after the race).

Learn more about the race

Registration: TBA

Fees
50KM: ¥20,800 (w/accommodation)
22KM: ¥16,950
5KM: ¥12,000
100m: ¥4,000
・Races organized by Fields include the following charges in this order: (a) entry/registration fee + (b) a flat rate ¥1,000 English support fee (by request from Fields) + (c) Samurai Sports’ service charge (¥1,000 up to ¥10,000; 10% of entry/registration fee above ¥10,001). 
・The amounts reflected above and in Samurai Sports’ information are inclusive of all three parts, namely (a), (b), and (c). This is the final sum you should expect your credit card to be charged for one (1) entry/registration without additional add-ons.
・Stress less with Samurai Sports. Learn why Samurai Sports implements a service charge.

runners during skyline sugadaira trail race
runnder during skyline sugaidara trail race

Sapporo Teine

Hokkaido

June 2020 (details Jan 2020)

33, 17, 5KM

sapporo teine trail race logo

Outdoor sports abound all-year round in Hokkaido and during the warmer months, racing the Sapporo Teine Trail Race is a can’t-miss way to take in the breathtaking (green!) views of Japan’s northernmost prefecture!

Home to the 1972 Sapporo Winter Olympics, the Teine area is the epitome of the all-natural beauty renown in northern Japan. While staying true to the oft-grueling nature of trail running, the course is suitable for beginners and advanced runners alike.

  • 2019 Course Map (33KM, 17KM)
  • 2019 Course Map (5KM)
  • 2019 Elevation Profile (33KM, 17KM)
  • 2019 Elevation: +1,831m/6,007 feet (33KM), +932m/3,058ft (17KM)
  • 2019 Cut Off Times (COT): 7 hours (33KM), 5 hours (17KM), 2 hours (5KM)
  • Capacity: 350 (33KM), 450 (17KM), 100 (5KM)
     
  • Public transportation to this area is limited. We recommend taking a private vehicle, renting a car, and/or planning in advance. Please ensure you have lodging and transportation plans figured out BEFORE registering for this event.
  • Please be a responsible athlete and only register if you feel confident about your abilities, the distance, and race logistics (including before and after the race).
  •  

Learn more about the race

Registration: TBA

Fees
33KM: ¥10,000
17KM: ¥8,000
5KM: ¥4,000
・Races organized by Fields include the following charges in this order: (a) entry/registration fee + (b) a flat rate ¥1,000 English support fee (by request from Fields) + (c) Samurai Sports’ service charge (¥1,000 up to ¥10,000; 10% of entry/registration fee above ¥10,001). 
・The amounts reflected above and in Samurai Sports’ information are inclusive of all three parts, namely (a), (b), and (c). This is the final sum you should expect your credit card to be charged for one (1) entry/registration without additional add-ons.
・Stress less with Samurai Sports. Learn why Samurai Sports implements a service charge.

Utsukushigahara

Nagano

June 29, 2019

90, 80, 45, 15KM

utsukushigahara trail race logo

Perennially ranked in the top 5 most popular trail races in the nation, the inov-8 Cup 9th Annual Utsukushigahara Trail Race is a bucketlist race for those up to the challenge!

With four distances ranging from 90KM to 14KM, it’s a race everyone can be a part of. Fancy yourself hardcore? Go on and bite the bullet with the technical 90KM course – includes 5,110m or about 16,700ft total ascent – and go toe-to-toe with Japan’s top athletes. Looking for something less daunting? The 14KM course is perfect (but still includes almost 1,000m of climbing)! 

In Japanese, Utsukushigahara means “beautiful field” – and trust us, no matter which course you find yourself, the views of Nagano will be spectacularly scenic. 

  • Elevation Profiles: 90KM, 80KM, 45KM, 15KM
  • Course Map 
  • Elevation: +5,110m/16,765ft (90KM), +3,980m/13,057ft (80KM), +1,830m/6,004ft (45KM), +979m/3,212ft (15KM)
  • Cut Off Times (COT): 17 hours (90KM), 16 hours (80KM), 10 hours (45KM), 4 hours (14KM)
  • Capacity: 100 (90KM), 700 (80KM), 500 (45KM), 300 (14KM)
  • ITRA: Endurance 4 (90KM, 80KM), Endurance 2 (45KM)

  • Public transportation to this area is very limited. We recommend taking a private vehicle, rental car, and/or planning travel logistics ahead of time. Please ensure you have lodging and transportation plans figured out BEFORE registering for this event.
  • Please be a responsible athlete and only register if you feel confident about your abilities, the distance, and travel logistics (including before and after the race).

Learn more about the race

Registration: April 6, 2019 – May 31, 2019

Register Now!

2019 Fees
90KM: ¥23,000 
80KM: ¥20,800 
45KM: ¥13,650 
14KM: ¥8,000 (elementary, middle school: ¥5,000)
・Races organized by Fields include the following charges in this order: (a) entry/registration fee + (b) a flat rate ¥1,000 English support fee (by request from Fields) + (c) Samurai Sports’ service charge (¥1,000 up to ¥10,000; 10% of entry/registration fee above ¥10,001). 
・The amounts reflected above and in Samurai Sports’ information are inclusive of all three parts, namely (a), (b), and (c). This is the final sum you should expect your credit card to be charged for one (1) entry/registration without additional add-ons.
・Stress less with Samurai Sports. Learn why Samurai Sports implements a service charge.

runner during Utsukushigahara trail race
runner during Utsukushigahara trial race

Mt. Taisetsu

Hokkaido

July 28, 2019

70, 40, Junior 10KM, Junior 5KM

mt taisetsu trail logo

With over 600 runners joining us each year, Mt. Taisetsu is one of Hokkaido’s most popular trail races! Set in Japan’s biggest national park, the sheer scale of wilderness and nature encountered on the course is second to none. 

Different from years prior, the Mt. Taisetsu Trail Journey now offers a 70KM course, the return of the 40KM course, and junior trail challenges at 5KM and 10KM. In the future, there will be a 100KM ultra trail every four years; the next one is scheduled in 2022 to celebrate the tenth edition of the Mt. Taisetsu Trail Journey. 

None of these courses will be easy; however, the satisfaction you will feel when you cross the finish will be unforgettable. Don’t forget to spend some time feasting on Hokkaido’s seasonal offerings, soaking in  the onsen hot springs, and relaxing in post-race relaxation mode! 

  • Elevation Profiles: N/A
  • Course Map
  • 2018 Elevation: +2,905m/9,530ft (2018 – 80KM), +885m/2,903ft (2018 – 40KM)
  • Cut Off Times (COT): 13 hours (70KM), 10 hours (40KM), 2 hours (10KM) 90 minutes (5KM)
  • Capacity: 300 (70KM), 300 (40KM), 50 (10KM, 5KM)
  • ITRA: Endurance 3 (70KM), Endurance 2 (40KM)
  • View 2018 photos
     
  • Public transportation to this area is limited. We recommend taking a private vehicle, renting a car, and/or planning in advance. Please ensure you have lodging and transportation plans figured out BEFORE registering for this event.
  • Please be a responsible athlete and only register if you feel confident about your abilities, the distance, and travel logistics (including before and after the race).
  •  

Learn more about the race

Registration: February 23, 2019 until June 28, 2019
Register now!

Fees
70KM: ¥16,400 
40KM: ¥10,000
Junior 10KM: ¥6,000 (High School and Under: ¥4,000)
Junior 5KM:
¥6,000 (High School and Under: ¥4,000)

・Races organized by Fields include the following charges in this order: (a) entry/registration fee + (b) a flat rate ¥1,000 English support fee (by request from Fields) + (c) Samurai Sports’ service charge (¥1,000 up to ¥10,000; 10% of entry/registration fee above ¥10,001). 
・The amounts reflected above and in Samurai Sports’ information are inclusive of all three parts, namely (a), (b), and (c). This is the final sum you should expect your credit card to be charged for one (1) entry/registration without additional add-ons.
・Stress less with Samurai Sports. Learn why Samurai Sports implements a service charge.

runners during Mt. Taisetsu trail race

Tokachidake

Hokkaido

August 18, 2019

55, 20KM

mt taisetsu trail logo

Based in the heart of the popular Kami-Furano area and near Biei, the Tokachidake Trail Race takes runners on a 20KM or 55KM course around Mt. Tokachidake. The majority of the course takes part on relatively running-friendly terrain, making the longer distance covered less formidable. Don’t forget to sign up for the pre-race barbeque at Hinode Park and indulge post-race in the onsen hot springs! 

The outdoors are what keep drawing people – and trail runners – back to Hokkaido. Come and see what it’s all about in the north! 

  • Elevation Profiles (55KM, 20KM)
  • Course Map 
  • Elevation: +1,730m/5,675ft (55KM), +530m/1,738ft (20KM)
  • Cut Off Times (COT): 10 hours (55KM), 5 hours (20KM)
  • ITRA: 3 (55KM)
  • View 2018 photos

     

  • Public transportation to this area is limited. We recommend taking a private vehicle, rental car, and/or planning travel logistics ahead of time. Please ensure you have lodging and transportation plans figured out BEFORE registering for this event.
  • Please be a responsible athlete and only register if you feel confident about your abilities, the distance, and travel logistics (including before and after the race).

Learn more about the race 

Registration: Mar 16, 2019 to July 19, 2019

Register Now!

Fees
55KM: ¥12,100
20KM: ¥7,000
・Races organized by Fields include the following charges in this order: (a) entry/registration fee + (b) a flat rate ¥1,000 English support fee (by request from Fields) + (c) Samurai Sports’ service charge (¥1,000 up to ¥10,000; 10% of entry/registration fee above ¥10,001). 
・The amounts reflected above and in Samurai Sports’ information are inclusive of all three parts, namely (a), (b), and (c). This is the final sum you should expect your credit card to be charged for one (1) entry/registration without additional add-ons.
・Stress less with Samurai Sports. Learn why Samurai Sports implements a service charge.

runner during Tokachidake trail race
runners during Tokachidake trail race

Shinshu Togakushi

Nagano

September 29, 2019

5, 30, 60KM

shinshu togakushi logo

Autumn beckons as the leaves turn and temperatures drop in Nagano…surround yourself in pure nature! Taking place in the most magnificent of natural playgrounds, the Shinshu Togakushi Trail Race is one of Japan’s rising stars in the long list of trail races around the nation.

Push through with that rush of adrenaline as you run along the historical Togakushi trail! Feelin’ spiritual? You’ll find Togakushi Shrine tucked away in the middle of the woods. With a course cutting through the Joshinetsu-Kogen National Park, runners have unparalleled opportunities to see tranquil sides of Japan’s raw beauty!

During the race, experience the serenity of the mountains, deep in the wilderness of Nagano. After the race, reward yourself with a taste of traditional Japan and treat yourself to warm, handmade Togakushi soba. 

  • Elevation Profiles: N/A
  • Course Map 
  • Elevation: +3,220m/10,564ft (60KM), +1,816m/5,958ft (30KM), +297m/974ft (5KM)
  • Cut Off Times (COT): 12 hours (60KM), 8 hours (30KM), 2 hours (5KM)
  • Capacity: 400 (60KM), 300 (30KM), 100 (5KM)
  • ITRA: Endurance 3 (60KM), Endurance 2 (30KM)
  • Public transportation to this area is very limited. We recommend taking a private vehicle or utilizing the charter bus service (add’l fees apply). Please ensure you have lodging and transportation plans figured out BEFORE registering for this event.
  • Please be a responsible athlete and only register if you feel confident about your abilities, the distance, and race logistics (including before and after the race).

Learn more about the race 

Registration: March 30, 2019 to August 30, 2019

Register Now!

Fees
60KM with lodging: ¥23,000 (with  accommodations)
30KM with lodging: ¥18,600 (with accommodations)
5KM: ¥5,000 (high school or younger: ¥4,000)
・Races organized by Fields include the following charges in this order: (a) entry/registration fee + (b) a flat rate ¥1,000 English support fee (by request from Fields) + (c) Samurai Sports’ service charge (¥1,000 up to ¥10,000; 10% of entry/registration fee above ¥10,001). 
・The amounts reflected above and in Samurai Sports’ information are inclusive of all three parts, namely (a), (b), and (c). This is the final sum you should expect your credit card to be charged for one (1) entry/registration without additional add-ons.
・Stress less with Samurai Sports. Learn why Samurai Sports implements a service charge.

runners during Shinshu Togakushi trail race
runners during Shinshu Togakushi trail race