Following a year of venturing into the trail run world, Samurai Sports and race organizers KFC Triathlon have partnered together again in 2019!

Whether you're 'just' an enthusiast or a hardcore trail running junkie, the Tokyo Trail Run Race Series offers up to six mid- to long-distance races to supplement your calendar! Best of all, they're all located within 90 minutes of central Tokyo (with the exception of Akagi and Tamagawa).

Before committing, make sure to carefully read through the page detailing information about the race pass and containing the FAQ ( As a consumer, you are responsible for reading through each section carefully and understanding what the race pass does and does not entail. Should you require clarification or have questions, you must contact Samurai Sports (

The last day to register for the Six-Pack and Six-Pack Max is February 10, 2019. The last day to register for the Three-peat and Three-peat Light is June 1, 2019. 

Note: Neither t-shirts nor medals are guaranteed for each race. However, some races may have a t-shirt; hence, our request for t-shirt size. Keep in mind that Japanese sizes tend to run small - if in doubt, go one size up.

Entry Fees Before Feb 10, 2019
Six Pack Max ¥40,000
Six Pack ¥38,500
Three-peat ¥17,500
Three-peat Light ¥16,000

・ No partial nor total refunds or credits will be issued. This applies to incidents in which the event is cancelled for any reason including personal participant circumstances of the participant (including illness and injury) and incidents in which the event is cancelled due to unforeseen weather conditions or natural disasters.
・ Event entries are non-transferable. Any person doing so will be held responsible in case of an accident arising from or provoked by the other person during the event. Participants determined to be violating this policy will be disqualified without a refund. The event organizers will reserve the right to exclude both parties from future events.
・You will not sue the event organizers nor its affiliates (including Samurai Sports) for any injury or death caused during the event.
・ You consent to and will give all authorities and copyright to the event organizer and affiliates for the use of photography, motion pictures, articles, recordings or any other record of this event (including personal information such as name, age, gender, personal record, portrait, and etc.) for legitimate purposes and use in newspapers, TV, magazines, internet and any media publishing such as Facebook posts, Instagram posts, and pamphlets.

・In most cases, athlete guides in English will be sent via email approximately 2-3 weeks before each race. However, the delivery of athlete guides is entirely dependent on the timeliness of the event organizers. Samurai Sports takes approximately one to two days from receipt of the Japanese athlete guide to translate into English.

・There are no additional charges for purchasing a race pass.

・The organizer is aware of the importance of your personal information. The use of personal information conforms to the organizer's privacy protection law.
・Your personal information is used to provide you valuable services, such as race information, results, service from race affiliates, result ranking, and etc.
・The organizer may release your personal information when your life or body is in a life-threatening situation.
・The race organizer and its affiliates may contact you regarding your registration information.

・Please carefully read through the race pass page detailing information and FAQ ( You are responsible for reading through each section carefully. Should you require clarification or have questions, you must contact Samurai Sports (
・Samurai Sports assumes no responsibility or liability for any errors or omissions in the content of the website ( and the registration platform ( While we have taken every precaution to ensure that the content of this site is both current and accurate, errors can occur.
・Under no circumstances shall Samurai Sports or its affiliates and partners be liable for any indirect, incidental, consequential, special, or exemplary damages arising out of or in connection with the use of, accessing, reading, or otherwise understanding the Samurai Sports website and the japanevents registration platform. Samurai Sports reserves the right to make additions, deletions, or modification to the contents on the service at any time without prior notice.

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