Important Information About RUNNET and Your Tokyo Yamathon Registration
重要なお知らせ: 登録内容の変更とサポートについて

For the Tokyo Yamathon, we use RUNNET to manage all event registrations. RUNNET is a widely-used platform in Japan for race and endurance event sign-ups, offering participants an easy way to register, handle payments, and access event details.
Please Note: RUNNET is not an IVG-Japan service. We use RUNNET just like many other running, walking and endurance events in Japan, which means we do not own, manage the platform or have access rights to your registration data .
As a result, we cannot make any changes to your registration information, such as team details, name adjustments, or other support requests.
If you need to update your registration or require support, you must visit your registration page on RUNNET and request help through their services. Since we do not have access to RUNNET’s internal systems, we cannot guarantee a timely or satisfactory response to your requests—this is entirely up…