The M2M is "the biggest event this little town puts on," drawing around 500 racers to the high desert of West Texas. Runners can choose from four distances: full marathon (26.2 miles), half marathon, 10K, or 5K.

The course offers a dry, cool, high desert climate with gradual downhill grades, spectacular scenery, and low traffic — it's a USATF-certified Boston Marathon qualifier. Proceeds benefit local nonprofits. Registration is at endurancecui.active.com.