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.
(7/24) Added Number card information, weather forecast information
It was an unwritten rule, but it had never been explicitly stated.
The checkpoint cut-off time is the time by which you must leave the checkpoint.
Depending on the race, there are two ways to interpret the checkpoint time limit.
a) You must reach the checkpoint by that time.b) By that time, you must have departed from the checkpoint.
This race adopts the latter option .
The difference is particularly significant when an aid station also serves as a checkpoint.
Some changes to the 2026 race
2026/7/10 updated
Changes the name of some Aid/Water Stations
WS1 Kami-shiyubetsu → the Trailhead WS
The additional time for the walking section has been extended by 10 minutes, bringing it to “40 minutes.”
The distance from Hirayama Junction to Mt. Himara is about 2 kilometers. Although it was said to take about 30 minutes at a normal walking pace, reaching the summit in 30 minutes requires walking at a fairly brisk pace. Since it actually takes about 40 minutes at a comfortable pace, we have increased the estimated time to 40 minutes starting this year. Please take your time and enjoy the fantastic scenery!
Even if you reach Mt. Himara in under 40 minutes, the additional time will still be 40 minutes. If it takes you more than 40 minutes, the actual time will be recorded.
The cutoff time for CP4 has been extended by 15 minutes to “3:15 p.m.”
Due to the extension of the walking section time allowance, the time limits at checkpoints will become stricter. Therefore, we have extended the time limit at CP4 by 15 minutes. This effectively eases the time limit by 5 minutes.
The 15K route just before the finish line was changed
The route for the 15K race will be changed for the last few hundred meters leading up to the finish line.
In the 2025 race, the course entered the venue from the side just before the finish line, but this year we set a new route that heads toward the finish line from behind the venue’s Center House. As a result, 15K runners will now return from the same direction as runners in other categories.
For the 2026 event, each participant will receive two race bibs, or number cards. They are required to wear one on the front and one on the back.
For the 2026 race, each runner will be given two race bibs
You must wear one bib on the front and one on the back of your body at all times Folding the bibs or attaching them to your lower body is not permitte
In races held through 2025, participants were issued with only one race number and attaching it to a backpack was prohibited.
Documents for DTJ 2026
Start Lists
The Bib Numbers are listed in the above PDFs. Please check your number.
Course Maps
for Garmin devices / Viewing on Garmin Connect
for Print
for Viewing on digital devices
Track files（GPX・KLM）
Documents
Documents had been sent via email
Please be sure to check your email everyday until DTJ 2026.
Number of Entrants
DTJ 2026 60k 40k 15k Entrants in all categories 505 Number of Entrants 141 227 137 Men 129 185 104 Women 12 42 33
TOC
Notice to Visitors arriving by car
Make sure you have plenty of gas left when you arrive!
The gas station in Shirataki is closed on Sundays , which is the day of the race .
The two nearest stations are in Maruseppu and Kamikawa Town, both of which are about 30 km away. However, the stations in both towns that are open on Sundays close at 5:00 PM .
In other words, if you don’t have enough gas to get home after finishing the race, you won’t be able to refuel
Parking lot map
The orange and yellow area is for participant parking .The orange area is for the 60K and 40K participants . 15K runners can’t park there.
The red area (inside the venue) is for staff parking only . Participants are prohibited from parking in this area.
weather forecast
according to Windy.com (as of 11PM on July 24)
Venue CP3 Hirayama Junction Mt. Tengu
Shirataki Information
(Just a bit more patience until the English page is ready!)
あわせて読みたい
会場情報 2026
会場図 2026/6/24現在の予定 (7/22) MERRELL情報、画像追加(7/14) リーフアート予約、クラフトビール購入予約リンク設置、ほか全体的に情報を整理(7/14) MERRELL（アウ…
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.
the Venue 2026 (as of July 9)
the booths are now
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.changing clothes tents rest area tents booths
food & drink stalls Merrell Shoe Try-Ons (you can try on the race! ) Murasaki Sports (sports recovery sandals) Marshmallow Bubu (Foot care service) Oizumi Choseikan (Japanese therapeutic Massage) Increadible Leaf Arts workshop
the Venue Booths Information (Just a bit more patience until the English page is ready!)
Daisetsuzan Trail Journey
会場情報 2026 | Daisetsuzan Trail Journey
会場図 2026/6/24現在の予定 (6/27) どこでもカフェ～♪（コーヒー） 追加 会場出店情報 飲食ブース 遠軽を、飲んで食べる 越冬白滝じゃがいも 標高の高い白滝の名産品のひ…
about runner check-in
Important notes at runner 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.
A carry-on item check: (40K) The check will be conducted at runner check-in. Please ensure you have all required items with you on registration. (60K) 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 Cut-off time 60K 2:30 – 3:30 AM 4:00 AM 6:00 PM (14hours) 40K 5:45 – 6:45 AM 7:00 AM 6:00 PM (11hours) 15K 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, 60K
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 AND rain pants 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 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 water (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 drink
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
“Key Equipment” check for all 40K/60K runners
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.
“Key Equipment 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 drink 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”.
Mobile Phone Coverage Area of the DTJ2026 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?
The rules for changing categories have been updated compared to the 2025 event.
You can change your category to a shorter distance no refunds will be issued for the price difference.
If you don’t complete the change procedure at least 30 minutes before the start time of your original category , you will be treated as a DNS (Did Not Start) and will no longer be able to make the change.
Only two participants may switch to the 40K category in 2026 (there are only two reserve bibs available).* As of 10:00 a.m. on July 23, 2026, we received two requests to switch to the 40K category, so registration for this category is now closed.
If you want to make changes to the 15K, you need to follow the steps at the main office.
If you want to change from 60K to 40K, you need to do the following:
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 .
