The Marathon Course begins at the Teton Dam Site in Teton, Idaho at an elevation of 5380'.  The first 15 miles are slightly downhill, with an elevation loss of approximately 500 feet.  The next 3 miles are uphill to an elevation of 5240', thus regaining 360'.  The remaining miles then descend to the finish line at Smith Park in Rexburg, Idaho at an elevation of 4850'.

Teton Dam Marathon

Post-Race Review/ Results

Aaron Withers won the 2023 Teton Dam Marathon in 2:32:48, breaking the record he set in 2019.

Record holder for Rexburg's Teton Dam Marathon wins again, sets a new record

Aaron Withers won the 2023 Teton Dam Maeathon in 2:23.

Teton Dam Marathon - News and Press Releases