Austin's Backyard Marathon

Capt'n Karl's Trail Series - Muleshoe Bend is a challenging trail running event held at the Muleshoe Bend LCRA Recreation Area near Spicewood, Texas, about 40 miles northwest of Austin. Set in the scenic Lower Colorado River and Lake Travis region, the course features rocky, technical trails with 3,..

Capt'n Karl's Trail Series at Reveille Peak Ranch in Burnet, Texas, is a premier trail running event held August 9-10, 2025. Set in a stunning private adventure park 55 miles northwest of Austin, the race features multiple distances: 60K, 30K, 20K, 10K, a Sunset 5K, and a Youth 1-Mile Trail Run for..

The Mellow Trail Race is a scenic trail running event held at Pace Bend Park in Spicewood, Texas, near Austin and San Antonio. Set along the shores of Lake Travis, the race offers a unique "lake party" atmosphere where runners can cool off in the water right after finishing. Distances include a mara..

The Donut Dash 16M, officially known as the Oasis 10 Mile, 10K, 5K Ruck and Run (Donut Dash), takes place at Bob Wentz Park in Austin, Texas, along the scenic Lake Travis shoreline. This event offers multiple distances including 5K, 10K, 10K Ruck, and 10 Mile options, catering to all fitness levels...

The Big Texas Ultra is a trail running event held near Lake Georgetown, Texas, featuring distances of 100K, 50K, and 15K, along with a 15K RUCK. The 100K race covers a challenging 31.1-mile loop with over 4,600 feet of elevation gain, traversing rocky, dirt, and grass trails. The event starts and fi..

The Backyard Ultra hosted by Summit Trail Racing in Marble Falls, TX, is a unique "Last Person Standing" trail race featuring a 4.1667-mile loop that participants must complete every hour. Runners continue until only one remains, with the challenge of returning to the start line within 60 minutes ea..