August 22, 2026 | Nikko National Park - Marunuma

XTERRA Japan Marunuma

Kids Triathlon

Swim

200m

Bike

4K

Run

2K

Event Overview

Due to unforeseen circumstances, this event has been canceled for 2026. We appreciate your understanding and look forward to welcoming you at future events.

This is a wonderful opportunity for kids and the future stars of XTERRA to immerse themselves in nature and enjoy the outdoors. This event not only encourages physical activity but also provides a fantastic platform for children to explore and appreciate the beauty of nature.

Course Maps

This courses below are not yet confirmed, and subject to change.

SWIM- 200m

1-lap 200m (Small Course) clockwise at Lake Marunuma

BIKE - 4K

2-lap 2K

RUN - 2K

2-lap 1K

Schedule

This schedule is not yet confirmed, and subject to change.

1

Fri 2026.08.21

+

13:00-16:00

Receive the race kit (All categories)

Marunuma (map)

13:00-16:00

MTB, Run course inspection / Swim inspection

Marunuma (map)

13:00-16:00

XTERRA EXPO

Marunuma (map)

Prizes

This information is not yet confirmed, and subject to change.

🎁 Participation prize

All participants

Prizes

Division Top 3

🏅 Medal

All Finishers

Fees

The fees below have not yet been confirmed, and are subject to change.

Registration from Nov 1st, 2025 - Jun 22nd, 2026.

Race Fees

DescriptionFee
Kids (Early Bird)8,550 JPY
Kids (Regular)9,500 JPY
Kids (Late)11,400 JPY

Registration notes:

  • A system registration fee will be added at the time of entry according to the rules of the entry system.

  • You will be required to submit a "Participation Pledge" when you receive your race kit.

  • Cancellation after payment is not accepted for any reason. (Including cancellation due to organizer's convenience)

  • We do not accept applications on the day of the event, so please enter the event within the application period.

  • Late entry：Please contact XTERRA JAPAN Management Office via email during the registration period.
    📧 [email protected]


👑 VIP Entry:
Entry fee：100,000JPY
Registration period：2024/10/15 to 2025/7/14
　▾Services included with VIP entry:
　　1. You can enter all the events you can participate in.
　　2. VIP parking lot
　　3. MTB VIP storage
　　4. VIP Mechanic Maintenance Service
　　5. Free bike wash service

Rules & Info

The information below may be from a previous edition of the event, and is subject to change.

Time limit: 6 hrs
Capacity: 30 people

Rule:　Please check the rules in Event Info.

  1. XTERRA JAPAN Oath

  2. General rules

  3. Competition rules

  4. Notes & Prohibited matters

When you register, we assume that you have read and understood the terms.