Marathons in Boise, Idaho 2026 — MyNextRace

There are 2 marathons in Boise, Idaho in 2026. The next is the Boise River Marathon on May 2.

Sun, May 2 · Boise, ID Boise

Virtual 5k5k10k +7

From $35 Open Closing Soon

Sat, May 15 · Boise, ID Boise

Road 5K Spud Run5K Spud Run10K +5

From $30 Open

Marathons in Boise, Idaho