Marathons in Boise, Idaho 2026 — MyNextRace

There are 4 marathons in Boise, Idaho in 2026. The next is the City of Trees Marathon on October 11.

Sun, Oct 11 · Boise, ID Boise

Virtual 5kSoleKIDs 5K10k +3

From $20 Open

Sat, Oct 17 · Boise, ID Boise

Road 5K10KHalf Marathon +1

From $25 Open

Sun, May 2 · Boise, ID Boise

Virtual 5k5k10k +7

From $35 Open

Sat, May 15 · Boise, ID Boise

Road 5K Spud Run5K Spud Run10K +5

From $30 Open

Marathons in Boise, Idaho