To Bone and Back Relay

Prepare for an unparalleled endurance challenge at the To Bone and Back Relay, set to unfold on Saturday, June 27, 2026, in scenic Idaho Falls, ID. This storied event, a cherished tradition in Southeast Idaho for over 34 years, offers a unique out-and-back experience where grit and camaraderie take center stage. Participants can tackle the demanding 40-mile distance solo as an ultra-marathoner, or form relay teams of 2, 4, or 8, with each team member carrying the distinctive "Bone baton" along the course. For those seeking a shorter but equally rewarding run, a 5-mile solo option is also available, ensuring an event for every level of runner.

The course, beginning from Summit Orthopaedics in Idaho Falls, is described as a rugged road race (primarily asphalt with some historical dirt sections) that winds through winding, hilly country roads to the small farming area known as Bone, and then back. Runners should anticipate a challenging profile, including long climbs and relentless descents, with the 40-mile route featuring an approximate total elevation gain of 2,995 feet from a starting elevation of around 4750 feet. Expect exposed sections and significant mental tests, particularly between miles 5 and 10 which present a sustained uphill grade. While the scenery offers views of the valley, farmland, and towering windmills, the focus remains on the personal and team challenge. Aid stations are fully supported, providing water every 2.5 miles, and for ultra-marathoners, sports drinks, energy gels, pretzels, gummy bears, and fruit every 5 miles. Typical race day conditions in late June bring highs around 82F and lows around 47F, with a low chance of precipitation, though runners should be prepared for heat and exposed stretches.

What truly sets the To Bone and Back Relay apart is its vibrant atmosphere of support, with teammates and spectators actively cheering on runners through every mile. This event is not merely a race; it's a "true endurance challenge where pacing, preparation, and grit matter just as much as fitness," culminating in a profound sense of accomplishment for all who participate. Join this memorable journey to push your limits, share an unforgettable experience with friends and family, and earn the right to say, "I ran the To Bone and Back!".