Trail Running calendar near San Marcos 2026-2027

A Thanksgiving themed race day in San Antonio on November 29, 2026 featuring a Kids Dash, 1 Mile, 5K, 10K, Half Marathon, a virtual option, and a volunteer plus run choice with event swag and chip timing.

A trail race at Indian Mound Ranch near Austin on December 5, 2026, with multiple distances from 5K to 50K plus a youth mile. The course is a figure 8 with central aid and chip timing; the event is cupless and marked throughout.

A backyard ultra in the Texas Hill Country where runners complete a 4 mile loop each hour with about 200 feet of climbing. The race continues until one runner remains, who is the only official finisher.

A 6.2 mile race in San Antonio on 12/12/2026 with a course run entirely on loose sand. Post-race offerings include s'mores, hot cocoa, and live music for a seasonal atmosphere.

Experience a festive trail run through McAllister Park in San Antonio. Choose from 5k, 10k, or 20k technical courses featuring rocks and roots before celebrating at the finish with holiday swag and awards.

A multi-distance trail race at Buescher State Park with options from 1M to 104k including relays, two full aid stations with Texas style food, cupless aid, camping and a 500 runner limit across December 12 and 13.

A community road event in Boerne featuring 5K, 10K and a fun run that starts and finishes at Patrick Heath Amphitheater. Proceeds support Transformation House services for women and children.

A 6 hour trail endurance challenge where runners complete a 5K each hour for six rounds. Finish all six laps to earn the OUTLAST medal, join the national leaderboard, and compete for event and national prizes.

Holiday race at McAllister Park with a Kids Dash, 1-mile, chip timed 5K and 10K, virtual option, costume contest, and finishers receiving a shirt and medal.

Lake Travis New Year's Trail Challenge is a multi-distance trail running event near Austin, Texas featuring a 50K ultra, 25K, half marathon, Last Runner Standing, 5K and kids races organized by Fit Foundation around New Year's.

A multi-distance New Year’s trail event at Canyon of the Eagles near Burnet, Texas, featuring 100K and 50K ultras plus shorter run and ruck options along river and limestone bluff trails. Ruck divisions include verified weight rules and set..

A New Year’s Day trail event at Shaffer Bend Recreation Area offering 5K and 10K loop courses with rolling terrain and Lake Travis views. Online waivers are required and bib pickup is available on site.

Bandera Endurance Trail Race runs January 9-10, 2027 in Hill Country State Natural Area offering 100k, 50k, 25k and a youth mile on a technical 50k loop with about 3,300 feet of elevation gain per lap.

A multi-distance trail event at Lake Bastrop on January 16-17, 2027, featuring 5K, 10-mile, half and full marathons, 6/12/24-hour timed challenges, and ruck divisions on the North-South Trailway.

A trail event at Eisenhower Park offering 50K, 25K, 10K and 5K with a 400 runner cap, full aid stations without disposable cups, drop bag area, and ruck divisions with specific minimum weights.

Cowboy YETI is a trail running event at Bastrop State Park on January 23, 2027 offering distances from 7K to 100K plus a 20K ruck on dirt and rocky single track with aid stations and specific mandatory gear rules.

The Great Springs Trail Race - San Marcos will take place in San Marcos on Saturday 23 January 2027. You can run between 10 and 26 miles.

The La Llorona 10K Trail Run will take place in San Antonio on Sunday 24 January 2027. You can run 10 kilometers.

A multi-distance trail race at River Ranch County Park near Liberty Hill offering 5k to 50k options, looped courses, fully stocked aid stations, finisher medals for all, and awards for top finishers across distances.

Goliath's 50 in Marble Falls on Feb 20, 2027 is a multi-distance trail event at Shaffer Bend Recreation Area, with looped dirt, sand and rock trails, aid stations, ruck and ultramarathon options, and rolling 10 mile loops.