12hr Winter ultramarathons in Texas, United States

Certified paved loop on the shore of Lake Grapevine, with lake views, changing direction, and a spectator-friendly timed ultra format.

Out-and-back on Lake Bastrop’s North-South Trailway: packed dirt singletrack, sand and rock through Lost Pines, bridges and gently rolling terrain.

Timed 6- or 12-hour format on a 5K lap loop, with hourly cutoffs and progressive elimination