Outside event (not hosted by Trinity Endurance). West Texas gravel with a $10,000 prize purse on the 100-miler. Race weekend runs March 18-21, with the gravel race on Saturday, March 20. Distances: 100, 70, 50, 30 and 15 miles, plus XC mountain bike and trail runs. Registration opened October 1: https://rattlesnakegravelgrind.bike