October 9, 2021 Update: We’ve reached 700 registrants, so we’ve now sold out of race medals.   Don’t worry, though, you can still register for the

Here is the roster of registered participants in the TMC Get Moving Event, staged at the Biosphere 2.  The events include the TMC 15k, the

Click here for the volunteer registration form.  All volunteers at the October 24th TMC 15k and 5k receive free entry into the world-famous Biosphere 2

If you’re interested in following the route, check out the link to the mapmyrun course map for the Grand Canyon Trail Half Marathon.

Click here for the race report sent out to all participants of the 50th Annual Saguaro National Park Labor Day 8-miler. Thanks to all the

Click here for the race report emailed to all participants in the TMC Tucson 10k.  For results, click on Roadrunner Race Timing or the results