The Rigby Lake RUMBLE Triathlon returns to the beautiful Jefferson County Lake in Rigby, Idaho, for a day of multi-sport competition.
Sat, 11 Jul 2026
8:00 AM (AmericaDenver)
Jefferson County Lake Rigby , Idaho
The Rigby Lake RUMBLE Triathlon is a premier multi-sport event held at the scenic Jefferson County Lake in Rigby, Idaho. This annual competition challenges athletes with a combination of swimming, cycling, and running, set against the backdrop of one of the region's most beautiful natural locations. Whether you are a seasoned triathlete or a newcomer to the sport, the RUMBLE offers an exciting and well-organized experience that continues to be a highlight of the local athletic calendar.
What to Expect
Athletes can expect a professional, high-energy triathlon experience featuring swimming, cycling, and running segments.
Who Should Attend
Triathletes
Athletes
Sports enthusiasts
Spectators
Agenda Overview
The event features a full triathlon competition starting in the morning at Jefferson County Lake.