There are 56 half marathons in Arizona scheduled for 2026. The next is the Haunted 5K,10K & 13.1M at Tucson, AZ (42) in Tucson on October 17. Arizona half marathons run primarily October through September.

Coffee Lover Run PHOENIX

Sat, Jan 30 · Phoenix, AZ Phoenix
Family Fun Run 1 MileVirtual Run Registration (5K/10K/13.1)5K/10K/13.1 Eco-Registration (No Shirt) +3

Havasu Half Marathon & 5K

Fri, Mar 5 · Lake Havasu City, AZ Lake Havasu City
Doggie Dash 3K Presented By Thompson Family PlumbingDoggie Dash 3K Presented By Thompson Family PlumbingVirtual 5K +11