Ascension Seton Austin Marathon

The Ascension Seton Austin Marathon is a major mid-February race in Texas, drawing runners from all 50 states and dozens of countries. Since 1992 it has featured a full marathon, half marathon, and 5K, supported by a two-day Health and Fitness Expo and a lively finish line festival in downtown Austin. Known for its energetic crowds and live bands on course, the event showcases the city’s culture, food, and music scene while offering a well-organized, big-city marathon experience.

Both the marathon and half marathon start on 2nd Street at Congress Avenue in downtown Austin and finish near 9th Street on Congress in front of the Texas State Capitol. The USATF-certified marathon route tours key neighborhoods and landmarks including downtown, South Congress, the Colorado River area, historic Hyde Park, East Austin, and the University of Texas campus. Runners encounter rolling hills throughout, with early climbs on South Congress, long descents, and steady undulations that make the course scenic but moderately challenging.

Held in mid-February, the Austin Marathon typically enjoys cool to mild winter conditions. Morning start temperatures are often in the mid 40s to low 50s °F (7–11 °C), with daytime highs climbing into the low to mid 60s °F (16–18 °C). Humidity can vary, and occasional rain or wind is possible, but many years offer clear or partly cloudy skies and comfortable running weather, especially for those coming from colder climates.