Registrations for the the 4th edition of BBU (September 19-20, 2026) will open on December 17, 2026 at 8pm. You have the opportunity to sign up for one of our individual races – BBU40 (40km/2000m), BBU60+ (62km/3500m) or BBU100+ (118km/6300m) or as a team of 4 for the BBU RELAY.
