You should read Concent form (in Japanese) before the entry.
You can enter from Japan-O-entry system.

Regular Entry
1st step: 7th May 2025 – 15th June 2025
2nd step: 17th June 2025 – 4th July 2025 (+ JPY 1,000 for one race)
Change/Cancellation
You can change/cancel your entry on Japan-O-Entry. You should change/cancel during the period which you can do them.
After the period ends, you cannot cancel your entry (no refund). Card number change is JPY100. You must pay at event center.
Entry fee
Price is in JPY.
Day1 Middle distance | Day2 Long distance | |||||
Adult | College student | Junior | Adult | College student | Junior | |
E class | 6,500 | 3,500 | ― | 7.500 | 4,500 | ― |
A class | 5,500 | 3,500 | 2,500 | 6,000 | 4,500 | 3,500 |
University freshman/ fresh-woman, BL, BS | 2,500 | 2,000 | 1,500 | 3,000 | 2,500 | 2,000 |
Additional runner in the classes above (Group, / person) | 1,500 | 1,000 | 1,000 | 1,500 | 1,000 | 1,000 |
E-card rental | 500 | 500 | 500 | 500 | 500 | 500 |
*Students in graduate school are under College student category.