Online registrations are now closed.

Check/Confirm Registration

・Athletes may check their registration status here.

・In order to check your registration status, you will need your first name, last name, and age on race day.

Race Packets

Domestic & International Registrants (incl. FPO/APO/DPO): All Samurai Sports registrants must collect race packets on race day.

For up-to-date information, check the GRINDURO website.

Questions? Email Samurai Sports (