Saturday, November 2, 2019 



Izu Oshima Island (Oshima is part of the Tokyo Izu Islands which is a 2 hour ferry ride from Tokyo. See the "Getting There" page for directions)

Racer Check-in & Start/Finish: Motomachi Port



Middle & South Izu Oshima Island (Mt. Mihara ~ Habu Port area)

Middle & North Izu Oshima Island (Mt. Mihara - Okada Port)

1:25,000 topographic map



6 Hour Course

4 Hour Course



6 Hour Course:  Men, Women, Mixed

4 Hour Course: Adult, Family, Solo



6 Hour Course:   A team can consist of 2 to 5 members.

4 Hour Course:   A team can consist of 1 (solo) to 5 members.



Awards and prizes will be given to the top 3 teams in each category for each course.



Adults (18 years or older):

6 hour course - JPY 5,000  

4 hour course - JPY 4,500


Youth (13-17 years old):  4 & 6 hours - JPY 3,000

Local Adult (Oshima resident):  4 & 6 hours - JPY 3,000

Local Youth (Oshima resident):  4 & 6 hours - JPY 1,000

Child (age under 12):  4 & 6 hours - Free 


* Rates are per person (not per team)



  • The event  will take place rain or shine. However, a decision may be made to cancel the race for safety reasons, if faced with certain weather/environmental conditions (i.e. heavy storms, typhoons, earthquakes, eruptions, etc.) as well as other extraordinary events including the cancellation of ship transportation to/from the island.
  • In such a case, the race headquarters will make a decision by 9 pm on the day before the race (Feb 1) and an official announcement will be made on this race website. We will also be contacting the representative of each team via email.



Saturday, February 2, 2019

Racer Check-in ............................ 7:30 - 8:15
Opening Ceremony & Briefing ... 8:30 - 8:55

Map Distribution ..........................

8:55 - 9:15
Start .............................................. 9:15
Finish ............................................ 15:15
Photo Check  & Point Calculation .. 15:15 - 16:15
Awards Ceremony ....................... 16:15 - 17:00


Saturday, February 2, 2019

Racer Check-in ............................ 9:40 - 10:20
Opening Ceremony & Briefing ... 10:20 - 10:40

Map Distribution ..........................

10:40 - 11:00
Start .............................................. 11:00
Finish ............................................ 15:00
Photo Check & Point Calculation .. 15:00 - 16:15
Awards Ceremony .......................

16:15 - 17:00



  • The objective of this rogaining event is to accumulate the highest number of points within the cut-off times (6 hours or 4 hours) by visiting "checkpoints" (CP's) scattered across the designated competition area.
  • Teams will be ranked based on the number of points accumulated. 


  • Maps will be distributed at the start and teams will then be given 20 minutes to study the map and come up with a route plan/strategy. A list of all the CP's with photos will also be distributed at the start.

Check Points (CP's)

  • A CP can be a distinctive land feature, statue or monument, signs or an orange and white orienteering flag. The middle of the circle on the map is the exact location of the CP. 
  • The number shown beside the CP represents the number of points allotted to it. CP's with a low number of points are generally easier to find whereas the more difficult CP's will be assigned a higher number of points.
  • Teams are free to decide which CP's to visit, and in what order.


  • This rogaine is a "Photo Rogaine" whereby teams are required to prove that they visited a CP by taking a photo using a digital camera or smart/mobile phone camera. 
  • Team members should be included in the photo, preferably in the same pose as shown in the photo!
  • All members of the team must stay together at all times (for safety reasons). If separated, the team will be  disqualified.

Point Accumulation & Cut-offs

  • Points are added up to calculate the total number of points accumulated.
  • If multiple teams accumulate the same number of points, the team arriving back to the finish line earlier wins.
  • If you don't meet the cut-off times, your team will be penalized by deducting points for late each minute .

Compasses & GPS's

  • Compasses may be used with the map.
  • The use of GPS's are prohibited. (No GPS allowed except for recording your track).

Public Transportation

  • Participants can walk or run but may also utilize local buses (Oshima Bus).
  • Bicycles, taxis and/or other modes of transportation may not be utilized.



You can choose to enter one of the following two courses:

  • 6 Hour Course - Teams have 6 hours to collect CP's (6 hour cutoff time)
  • 4 Hour Course - Teams have 4 hours to collect CP's (4 hour cutoff time)


Teams must consist of 2 to 5 members, except for the solo category.


Team Categories


Team categories are as follows:

For the 6 Hour Course: 

 - Men (All-male team)

 - Women (All-female team)

 - Mixed (Male & female mixed team)


For the 4 Hour Course:

 - Adult *1

 - Family *2

 - Solo *3


*1 Men, women or mixed team. Members must be 13 years old or older.

*2 Men, women or mixed team but must include at least 1 child of junior high school age or younger.

*3 Each team must include at least one adult member (20 years old or older) including family team and solo team.

     No solo teams allowed in the 6 Hour (Long) Course for safety reasons


Note: Age is as of they day of the event (November 2, 2019)




Your team can focus on visiting easier CP's and sightseeing spots close to town, or if you are confident in your navigation and running skills, you may want to challenge yourself to a more difficult CP.  As  bus transportation is a part of the game, your team's good communication and efficient strategy is the key to collect higher points.


It doesn't matter if you can read maps or not. The technical director, Shigeyuki Koizumi,  who is an orienteering expert and the past Asian Champion, is ready to accept your challenge!





A compass, digital camera or smart phone/mobile phone camera, and a pen is mandatory.


Please bring any other appropriate gear for hiking in the mountain for your own safety. (eg. Rain jacket and pants, warm clothing, first aid kit, snacks, headlamp) 


Compasses can also be rented for free.