Information for participants will be posted on this page.the information provided in advance may be subject to change . Please check this page for the latest information before the event.On the day of the event, the posted rules will take precedence over any prior information. Please note.
TOC
Final decision on courses (updated on Sunday, July 20, at 3:30 a.m.)
As of 3:00 a.m. on July 20, the current situation is as follows:
Strong winds with average speeds of 15 m/s or higher are blowing near Tengudake. At the event venue, which is located at the base of the mountain, gusts are occasionally blowing away tents. For this reason, we have determined that driving in the mountainous area is too risky. Plan B is also impossible, so we will proceed with Plan C.
Although we deeply regret having to modify the course to exclude the Mount Daisetsu mountain route, an integral part of this event’s identity, we kindly ask for your understanding of the circumstances.
The 60K course will start with the first 15 km, then follow the same route as the 40K course from A1 without heading toward the mountains. After turning around at the A3 Hirayama Trailhead, the course will return along the same route to the starting point and finish.
The 60K pair relay will also use the above modified route. Additionally, the relay at A2 remains unchanged.
WS2 and WS3 will not be passed through in any category.
Checkpoint changes:The second pass through A2 will be designated as CP3. The cutoff time for this is 2:00 PM. CP4 will be removed.
documents about the DTJ2025
Entrant List（2025/7/2）
Course map
*There is no toilet indicated on the map at A3 Aid, but there is actually one there.
*The route just before the finish line of the 15K course
for printing
for PC/mobile terminal viewing
Course Route data（GPX・KLM）
other documents
number of entries
DTJ 2025 60k 40k 15k 60K pair relay 40K pair total number of entrants: 389 entrants 126 161 64 6(3 pairs) 30(15 pairs) Male 118 142 45 5 18 Female 8 19 19 1 14 pair M-M 2 5 pair M-F 1 8 pair F-F 3
weather forecast
Shirataki Information
Daisetsuzan Trail Journey
Come to Shirataki! | Daisetsuzan Trail Journey
There are only 10 days left until the event! DTJ 2025 will take place in the Shirataki district of Engaru Town in Hokkai
Engaru Town is quite large. In addition to Shirataki, there are many other places to visit within a 40- to 50-minute drive. These include hot springs, roadside stations, and museums.
会場マップ
the Venue
(plan as of July 17)
event HQ
Venue announcements/MC booth first aid station luggage storage tent luggage storage for bus tour participants The luggage of bus tour participants will be stored separately at the reception desk. finisher’s certificate
check-in desk / equipment check There are different check-in tents for the 40K and 15K/60K runners.shop
food & beverage (need to pay) *All finishers will receive one free serving of udon or soba noodles. Yamatune (shop of mountain socks)
tent for changing clothes tent for rest area
Documents to be mailed
documents to be mailed
Consent form and check-in ticket Important Notices Course map
Consent Form 1 Consent Form 2 Important Notices
The above will be mailed to the address you provided when you registered.
Note: For those residing outside of Japan send PDF files of the documents via email Please print the PDF, fill in the necessary information, and bring it with you to the racer check-in desk
Consent Form : A signed consent form is required for all categories. The form serves as your check-in ticket. We will exchange it for your number card with an ID chip at check-in desk .Course Map : Participants in the 40K and 60K categories must carry the course map, which is included in the mandatory equipment . You may bring the mailed map or a printed copy of the PDF available on the website. You may use a digital map on your mobile device during the race, but please ensure that you also carry a printed copy . Mobile phone signals are unavailable in many parts of the course.
about check-in
Important notes at check-in
Notes
(All categories) Overnight stays in the parking lot, including sleeping in vehicles, are prohibited due to the possibility of bear-related accidents
(All categories) A signed consent form must be submitted at check-in . Please remember to bring it with you.
The parking lot for the participants is located more than 250 meters from the venue. Please allow sufficient time for transportation and arrive at the venue with plenty of time to spare.
(40K) A carry-on item check will be conducted at registration. Please ensure you have all required items with you. (For the 60K category, the check will be conducted at the 15K mark after the start, at Aid Station A1.)
check-in period, start time
check-in period start time deadline (time limit) 60K solo/pair relay 2:30 – 3:30 AM 4:00 AM 6:00 PM (14hours) 40K solo/pair 5:45 – 6:45 AM 7:00 AM 6:00 PM (11hours) 15K solo 7:45 – 8:45 AM 9:00 AM 12:00 PM (3hours)
If a large number of participants check-in just before the deadline, it may not be possible to start on time. Please register early. In particular, participants of the 40K race will be subject to a equipment check at registration, which may take some time. Please be aware of this.
Mandatory equipment
Please be sure to check the detailed page for the detailed competition rules, including information on the mandatory equipments, before participating in the competition.
Required items differ between the 15K and other races.
※ Click or tap the category in which you will participate
40K(solo/pair), 60K(solo/pair relay)
The following items are designated as mandatory equipment for this event from the standpoint of life-saving equipment (1-6), emergency and first aid (7-11), and ensuring adequate supplies (12-14) .event management personnel have the authority to stop the race or penalize the offending competitor on the spot .
(40K Pair) Sharing equipment within the pair is permitted, but each athlete must carry their own mandatory equipments at all times(60K Pair Relay) Although each athlete’s distance is short, both the first and second runners will be running in mountainous areas. Please prepare your mandatory equipments individually.
Checking Mandatory Equipment a consent form for the required equipment before the race begins.Some required items will be checked at the racer check-in for the 40 km participants at the A1 aid station for 60km participants .Random checks of the required items may be conducted during the race or after the finish line. If you are found to be missing any of the required items, you may be disqualified on the spot .
mandatory equipment（40K/60K）
waterproof rain jacket with hood / rain pants You should carry a jacket and pants that can handle bad weather in the mountains.racer bibs, IC chip In order for your number card to be easily visible, it must be worn on the front of your upper body. This also means that it cannot be hidden by your clothing or backpack. You cannot fold it, attach it to your lower body, or attach it to your backpack.course map In addition to the electronic map and GPX file, please make sure to carry a paper map. You will also receive an A4-sized paper map at the reception desk along with your bib, etc.mobile phone There are many areas of the course where there is no signal, so always keep your phone ON so you can receive calls in areas where you can get a signal . If you are concerned about running out of battery, carry an external power source such as a cell phone battery.whistle You should carry it in a way that allows you to pick it up quickly and signal immediately in an emergency.bear bell The course is located in an area where many brown bear scat has been observed . Always carry a bear bell that rings when you are on the trail . (Note: There are no houses near the trail, so there is no need to mute it ).disposable toilet kit Since the only toilets available on the course are at the A1 HQ Aid Station and the A2 Ninosawa Forest Road junction Aid Station , all participants must be prepared and carry their own disposable toilet kit. In addition, if you use it, you must carry it with you to the finish line .survival blanket Make sure you have a survival blanket large enough to cover your entire body.first aid kit Prepare bandages and dressings for bruises and bleeding injuries on the course.adhesive elastic tape photo identification bevarage(min 1L capacity bag) at least 1L in bottles, flasks, hydration bags, etc.you must carry at least 1L when you leave the start (40km), A1 (60km) and A3 (60km) aid stations .food personal cup for drinks
recommended equipment（40K/60K）
trail running shoes The 40km and 60km courses for this event include a variety of road surfaces, such as gravel roads with loose stones, steep slopes that are slippery, rocky areas, water sources, and scree slopes. In addition, it is not uncommon for road conditions to deteriorate depending on the weather before and during the event.strongly recommend trail running shoes as road running shoes can cause significant damage to the shoes themselves and there is a high risk of direct injury to the feet, falls and serious accidents.poles compass Being able to see the direction when you get lost reduces the risk of getting lost. You can also use the electronic compass feature.warm clothing for mountain areas gloves changing clothes writing utensils (for writing on maps, etc.)
15K
mandatory equipment（15K）
racer bibs, IC chip In order for your number card to be easily visible, it must be worn on the front of your upper body. This also means that it cannot be hidden by your clothing or backpack. You cannot fold it, attach it to your lower body, or attach it to your backpack.mobile phone There are many areas of the course where there is no signal, so always keep your phone ON so you can receive calls in areas where you can get a signal . If you are concerned about running out of battery, carry an external power source such as a cell phone battery.bear bell The course is located in an area where many brown bear scat has been observed . Always carry a bear bell that rings when you are on the trail . (Note: There are no houses near the trail, so there is no need to mute it ).at least 500mL of beverage
recommended equipment（15K）
trail running shoes Most of the 15K course is on forest and farm roads. Approximately 35% of the course is on paved roads, making it relatively easy with few rough sections. While road running shoes are acceptable, we recommend trail running shoes to reduce the risk of injury.course map
Special rules for this event
Equipment check for all 40K/60K runners (40K solo/pair, 60K solo/relay)
At the check-in desk , all participants in the 40K race will be asked to confirm that they are carrying the following items.At the A1 aid station , all participants in the 60K race will be asked to confirm that they are carrying the following items.Participants must have at least one liter of water at the time of the check. If you start the 60K race with only one liter and consume water during the race, you will need to replenish your supply at the A1 aid station.
Any participant who does not carry the required items at the checkpoint will be disqualified on the spot. 15K: No mandatory checks for all participants.
the equipment to be checked for all 40K/60K participants
waterproof rain jacket For details on performance, refer to the section on the mandatory equipments.bear bell at least 1 Liter of beverage you must carry at least 1L when you leave the start (40km), A1 (60km) and A3 (60km) aid stations .(any type of drink is acceptable)
No running zone
Start point: Hira-yama Junction (CP3)
At the start and end points of the section, a timekeeper will scan the QR code printed on your number card to confirm your passage . Please follow the instructions of the timekeeper.
About Setting the Walking (Running Restricted) Zone
A section of the mountain trail used for the 40km and 60km courses (around Hirayama, Himara-yama and Bunzou-dake) is a special protection area of the Daisetsuzan National Park.This area is home to rare alpine plants, such as Komakusa, especially around Hirayama and Himara-yama.To protect these plants, this section is a no-run zone. Please understand the purpose of this and strictly follow these rules.
平山稜線 2016年 – コマクサとシロバナコマクサ
The section from Hirayama Junction (CP3) to Himara-yama is a “no running” section
Timekeepers will be stationed at the entrance (Hirayama Junction) and exit (Himara-yama) of each section. Your number card must be read when entering and leaving the section
If you pass through the section within 30 minutes, your time will be recorded as 30 minutes. If it takes longer than 30 minutes, the time recorded will be the time taken to pass through the section. In other words, no matter how fast you are, at least 30 minutes will be added to your time
Marshals will be stationed along the course. If a violation is found, the marshals have the authority to impose penalties, up to and including cancellation of the race.
Although there is no strict definition of “running”, due to the rule in (3) above, there is no element of gaining an advantage by running fast. Please understand the purpose of this rule and enjoy the magnificent nature of Daisetsuzan while regaining your strength by “walking”.
Parking lot map
The yellow area is for participant parking .The red area (inside the venue) is for staff parking only . Participants are prohibited from parking in this area.
Mobile Phone Coverage Area of the DTJ2025 Course (NTT docomo)
This coverage area is compared with the NTT Docomo service area map.
For other carriers, please refer to your carrier’s service area map.
Due to weather conditions and dense vegetation, communication may be impossible even within the service area.
Communication is possible on most of the 15K course.
Please note that communication is not possible in many areas of the 40K and 60K courses. Do not rely on your mobile phone (app).
Questions and Answers
Are there any rules regarding the shape or capacity of the required water cup?
40K and 60K participants are required to bring their own personal drinking cups. Aid stations will provide bottled water and sports drinks, which participants are expected to pour into their own cups and drink.
Drinking directly from the bottle, even without touching your mouth, is prohibited as it may contaminate the bottle. Please ensure you bring your own personal cup.
As long as the cup is suitable for its intended use, the size and shape are free . It does not have to be a trail running cup; for example, an aluminum Sherpa cup designed for outdoor use is also acceptable. Personally, I like Sherpa cups because they have a travel vibe. Aluminum cups can get scratched, but they are lightweight, so I recommend them.
Additionally, there are no restrictions on the amount of water you can carry, so you may refill your flask or hydration pack with over 1 liter. Please ensure you have sufficient water supply.
If I am not feeling well on the day of the event, can I change to a shorter distance category?
You may change to a shorter distance category.
However, you must notify us during the check-in period for the original category in which you registered
Please note that no refunds will be issued for any difference in fees. It is not possible to change to a longer distance category.
If you or your partner becomes ill or experiences other unforeseen circumstances that prevent you from forming a pair, you may switch to the solo competition in the same category (e.g., 40K Pair to 40K Solo or 60K Pair Relay to 60K Solo) . You cannot switch to another category in this case. Additionally, for changes from the 60K Pair category to the Solo category, you will be billed for the difference later.
I am not sure if the specifications of my rainwear meet the performance requirements listed as mandatory equipments. How can I confirm that it is safe to use?
Rainwear is designated as mandatory equipment because it prevents participants from encountering life-threatening situations in the mountains during inclement weather .
Manufacturers do not measure the performance of rainwear according to uniform standards, and it is impossible to objectively evaluate the performance of all products because each company is developing its own materials at a rapid pace. The most reliable method is to consult the manufacturer. Conversely, products from manufacturers who cannot answer questions may not be suitable for use .
When visually checking mandatory items, we use the following guidelines: checking for waterproof zippers and taped seams . However, staff checks are intended to identify items that are clearly not rainwear for outdoor activities, such as windbreakers or casual rain gear, or participants who have not brought any rainwear .
