About the Yuma Territorial Marathon, Half Marathon, 10k and Team Relay
The course runs south on the shoulder of a US highway from Cocopah Casino and Resort, passing through Somerton and continuing into San Luis before turning back north to finish where it started. The terrain is essentially flat with a gentle drop early on and a modest climb back in the final stretch. Mile markers line the route, and hydration stations appear at nearly every one.
Packet pickup happens the evening before at the Cocopah Resort Hotel, with race-morning check-in available under the awning by the casino's main entrance. Start waves are staggered by distance, and awards follow in the late morning. The start and finish share the same spot outside the casino.
Free race emails
Get the Weekly RunSesh
Get races near Somerton in your inbox. Every Monday we send the races coming up, and every Thursday we send the ones happening that weekend.
Two helpful emails per week. No spam. Unsubscribe anytime.
Distances & Start Times
26.2 Miles1/30/2027 07:00$105
13.1 Miles1/30/2027 07:20$65
6.2 Miles1/30/2027 07:40$45
26.2 Miles1/30/2027 07:00$250
Going for a Time?
Set a goal and get a pace band: every mile split on a card sized for your phone lock screen, so race morning needs no math.
Not sure what to aim for? The marathon pace chart lists the pace for every finish time.
Plan Your TripWhere to Stay
Traveling for this race? The map shows hotels and rentals in and around Somerton — pan or zoom to compare what's nearby.
The map is provided by Stay22. If you book through it, RunSesh may earn a commission at no extra cost to you — it never affects the races we list.