Hiroshima Osorakan Trail Race
Samurai Sports Advantage
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. Line up with some of the nation’s hardiest trail runners and see where you stand!
Starting and finishing at the Osorakan Snow Park, the 65KM course involves completion of A Loop (27KM), B Loop (27.5KM), and C Loop (10KM) with a total ascent of almost 3,900 meters (about 12,800 feet). All three loops are an out and back with the base being Osorakan Snow Park. The 22KM course is separate from the 65KM course but also starts and ends at Osorakan Snow Park.
There is also an 80KM (50 miles) course at this year’s event. However, this course is limited to runners who have previously completed the 65KM course in under 12 hours – a feat our international athletes were unable to complete in past editions of the Hiroshima Osorakan Trail Race. Hence, Samurai Sports do not offer the 80KM option.
65KM Course | ITRA 3 | +4,230m
A Loop: Osorakan Snow Park – Mt. Hijiri – Mt. Takadake – Lake Hijiri – Tashirogawa River – Osorakan Snow Park
First half features easygoing trails and forestry construction roads. Second half will be more technical with hazardous spots and streams to cross, advanced mountaineering skills are recommended. The breathtaking view of the Osorakan Trails from Mt. Takadake will be worth the struggle!
B Loop: Osorakan Snow Park – Mt. Osoraka – Mt Jippou-Nasu – Uchigoru Pass – Osorakan Snow Park
Longest loop and with the biggest accumulated elevation difference. You will feel fatigued and encounter difficulty maintaining your pace on this highly mountainous course. An 800m section at the top of Mt. Osorakan is a walking zone. Daikoro-Hara (Kitchen Field) located in the beech forests on Mt. Osorakan and the Sky Trail on Mt. Jippou will provide momentary relief through the strenuous course.
C Loop: Osorakan Snow Park – Yokokawa River – Mt. Toishigou – Osorakan Snow Park
Though short, the steep uphill climbs in C Loop will be tough on the legs. Mt. Toishigou looms as the last challenge – those successfully finishing within the time limit will be awarded emotionally and granted bragging rights.
22KM Course | +1,248m
Runners will start the first 2.5KM on road before entering the trails at Yokogawa towards Yobiya Pass. After Yobiya Pass, you’ll return towards Osorakan Snow Park to encounter your first aid station at the 8.5KM mark. On this stretch, the trail is narrow and runners will find their speed decreasing as the terrain becomes more formidable. Additionally, you will climb about 300m to reach Osorakan Snow Park.
Head due west towards Natsu Yake Pass before arriving at Mt. Osorakan at around the 14KM mark. You will climb about 350m to reach Mt. Osorakan but will also encounter 2KM of relatively flat gravel – don’t forget to enjoy the views on this section. One portion is walking only – and you will walk for approximately 10 minutes so bringing an additional layer and/or wearing wicking fabrics is important. Once you’ve cleared the walking section, you can pick up the speed.
Continue to the water station at 17.7KM, at which point the terrain will switch to less trail, more gravel. After the water station is a 2KM downhill – proceed with caution. One final climb (about 1.7KM) on the road before hitting the ski slopes, which will be your glory road leading to the finish line.
・The area is remote and both public transportation and lodging options are limited. If you can car pool or drive your own vehicle/rental car, you should. This year, interested participants may also include add-on options for local accommodation and transportation, or accommodation only.
・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).
・For safety, all 65KM participants will be equipped with one-day rental of Coco Heli, a lightweight personal locator beacon capable of sending a distress signal and your location to a network of rescue helicopters throughout Japan. Rental fees are included in the entry fee.
・65KM = about 40 miles
・22KM = about 13.6 miles
・Stay updated via Facebook (event page link coming soon)
- 00Days Until Race Day
November 30, 2019 - March 30, 2020
May 16, 2020 (Saturday)
at Osorakan Snow Park
1300-1600…Race packet collection (all distances; required for 65KM)
1645-1800…Opening ceremony and pre-race dinner (add’l fees apply)
May 17, 2020 (Sunday)
at Osorakan Snow Park
0700-0815…22KM race packet collection
2000…Event finishes, cut off time
65KM: ¥17,600 (incl. Samurai Sports service charge and one-day rental of Coco Heli, a lightweight personal locator beacon capable of sending a distress signal and your location to a network of rescue helicopters throughout Japan.)
22KM: ¥9,000 (incl. Samurai Sports service charge)
Bus & 1N Stay packages
at Ikoinomura Hiroshima
1 person / 1 room (8 tatami mats with toilet) ¥21,000
2 person / 1 room (8 tatami mats with full bath) ¥19,500
3-5 people (10 tatami mats with toilet and shared room) ¥16,500
Common Room (gender separated spaces and bathrooms) ¥15,500
1N Stay Only
at Ikoinomura Hiroshima
1 person 1 room (8 tatami mats with toilet) ¥11,000
2 person 1 room (8 tatami mats with full bath) ¥9,500
3-5 people shared room (10 tatami mats with toilet) ¥6,500
Common Room (gender separated spaces and bathrooms) ¥5,500
Dinner at Ikoinomura Hiroshima ¥2,000
Pre-race dinner at Osorakan Park ¥2,000
Not limited to athletes; companions may also be included.
・Races organized by Fields include the following charges in this order: (a) entry/registration fee + (b) a flat rate ¥1,000 English support fee per entry, lodging, transport, and/or package + (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).
・Why does Samurai Sports implement a service charge? They help us cover the cost of operating the registration platform, translation of athlete guides/event information, labor hours required to answer your event inquiries, etc. Depending on the event, the surcharges help to cover the cost of our physical presence at the event.
Note about Accommodation
Samurai Sports and Fields encourages all athletes (regardless of distance) and their companions to arrange for and stay overnight in nearby accommodation. The race organizers believe that this allows runners adequate rest on the night before the race and helps to prevent injuries or accidents that may occur during a race, especially those in a high altitude environment. Relax and get ready for the race – it will be an early start!
If your lodging circumstances have changed or need to be altered for any reason at all, please send us an email at firstname.lastname@example.org
・Must be 18 or older
Cut Off Times
・22KM…6 hours 30 minutes
・Demonstrate good manners. All participants must be respectful of the natural course environment and do his/her best to preserve it. Be mindful of other climbers and hikers on the trail.
・Be a responsible athlete. Please make sure you have the physical ability to complete the course.
65KM and 22KM: bear bell, rain jacket and/or cold-weather protection, head lamp, emergency sheet, at least 1L of hydration, gloves, nutrition/food, personal cup/bottle/flask, proof of health insurance
* 65KM: If you leave A4 after 1600, race staff will check that you possess a rain jacket and working head lamp. You may not proceed to C loop if one or more items are missing.
Recommended: Rain jackets with a waterproof seam and water pressure resistance of 20,000mm or more, and moisture permeability of 10,000g/㎡ 24hrs or more. Rain pants and a head or hand lamp with new batteries and adequate light intensity (250 lumen or more) for mountaineering/ trail running are also recommended.
65KM: Refer to this PDF
Loop A: Red (27KM)
Loop B: Blue (27KM)
Loop C: Green (10KM)
22KM: Refer to this PDF
65KM aid stations: 16KM, 27KM, 36KM (WS), 47KM (WS)
22KM aid stations: 8.5KM, 17.5KM (WS)
Please note that the course map and advertised distance may not align perfectly. This is due to the fact that some areas do not always ping well using GPS or GLONASS. Additionally, course maps often calculate distance between several geographical coordinates that do not account for irregularities in the surface of the route nor changes in elevation relative to the idealized surface.
Should you find a discrepancy between the advertised distance and the map, you may reasonably expect to run a maximum of the distance advertised but may also find that the distance actually covered more closely resembles that of the course map provided.
Osorakan Snow Park and Family Square
740-1 Akiōta, Yamagata, Hiroshima 731-3801
This area is difficult to access by public transportation. Please ensure you have lodging and transportation plans figured out BEFORE registering for this event.
From Hiroshima, about one hour (70KM / 44 miles)
From Iwakuni, about two hours (95KM / 59 miles)
For car navis, use the following address and phone number:
Osorakan Snow Park
740-1 Akiōt, Yamagata, Hiroshima, 731-3801
・Hiroshima station -> Osorakan Snow Park (race venue) -> lodging -> race venue -> Hiroshima station
・Shuttle bus only available as a package with lodging; you must add-on the Bus + 1N Stay package upon registration.
・Shuttle buses are chartered tour buses with AC
・First come, first served – packages and accommodation are expected to sell out.
Shuttle Bus Timetable
1300…Depart Hiroshima station
1700…Depart Osorakan Snow Park for Ikoinomura Hiroshima (for those not staying for the pre-race dinner)
1830…Depart Osorakan Snow Park for Ikoinomura Hiroshima
0320…Depart Ikoinomura Hiroshima for Osorokan Snow Park (80KM, 65KM)
0700…Depart Ikoinomura Hiroshima for Osorokan Snow Park (22KM)
1600…Bus A departs Osorakan Snow Park to Hiroshima station (ETA 1800)
2030…Bus B departs Osorakan Snow Park to Hiroshima station (ETA 2230)
For more general information regarding access, click here (in Japanese).
・There will be parking nearby the race site and at the Osorakan Snow Park.
・Details regarding parkng will be in the athlete guide.