1 ランニング (running) event in Kiryu, Gunma

A general incorporated association dedicated to the promotion and development of triathlon in Fukuoka. They organize multiple triathlon events, conduct athlete strength development programs, manage judge training and certification, and support junior athlete development. The organization previously operated as the Fukuoka Triathlon Federation and changed its name to Triathlon Fukuoka in 2025.

A general incorporated association that governs and organizes triathlon events and activities in Hokkaido, Japan. The organization manages the Hokkaido Triathlon Circuit, sanctions races, provides referee training, and supports athlete development through various triathlon competitions and championships.

The official triathlon association for Miyagi Prefecture, Japan, established since 1994. Organizes triathlon competitions, training sessions, referee workshops, and member registration for competitive and recreational triathletes.

Official triathlon association in Yamagata Prefecture, Japan. Organizes and manages triathlon events including the Kurogashishi Triathlon, offers training sessions, and provides membership and event management services for triathlon athletes of all levels.

General incorporated association that manages triathlon competitions, competitor registration, and development activities in Yamanashi Prefecture, Japan. Affiliated with the Japan Triathlon Union (JTU) and Japan Triathlon (TRIJ). Supports major events including Mt. Fuji Triathlon and Yamanashi Aquathlon Festival.