Available distances
About
Teton Dam Marathon and Races takes place on June 5, 2027, in Rexburg, Idaho. Five formats are offered: the marathon (26.2 mi), a marathon relay, the half marathon (13.1 mi), a 10K (6.2 mi) and a 5K (3.1 mi). Start times are not listed in our records.
Eastern Idaho sits near 5,000 feet, and early June there can still deliver a cold morning — two facts that between them shape the race more than the course does. Arrive with a layer you can discard, start the marathon at an effort that feels conservative, and expect the altitude to cost you two or three minutes over the distance whatever shape you are in.
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Races nearby
Other upcoming races around Rexburg.
Haunted Half Marathon and 5K by Run the Undergrad
Oct 24, 2026 · Rexburg, ID · 0 mi away
13.2 mi · 3.1 mi
Spitfire Ultra Trail Challenge at Menan Butte
Apr 17, 2027 · Menan, ID · 12 mi away
34.2 mi · 18.6 mi · 7.5 mi · 3.1 mi
Dizzy Horse, A Winter Backyard Ultra
Jan 8, 2027 · Idaho Falls, ID · 26 mi away
0 mi
Idaho Falls Marathon
Jul 24, 2027 · Idaho Falls, ID · 27 mi away
26.2 mi · 13.1 mi · 3.1 mi
Idaho Falls Marathon & Half
Jul 24, 2027 · Idaho Falls, ID · 27 mi away
26.2 mi · 13.1 mi · 3.1 mi