Austin Solstice Circuit Challenge
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Austin Solstice Circuit Challenge
The Austin Solstice Circuit Challenge is a multi-distance running event at Pace Bend Park on Lake Travis in Spicewood, Texas, held across July 17 and 18, 2027. The event uses a repeated 1.64 mile paved lollipop figure-8 loop through limestone bluffs and oak-covered hills.
The course is fully paved asphalt with gentle, predictable elevation and reflective markers for nighttime visibility. A fully stocked aid station is located at the start/finish hub, providing access every loop. The marathon is USATF certified (code TX25015LAB) and is listed as a Boston qualifying course.
Distances and loop counts:
- 52.7 Miles - 32 loops
- 50K (31.0 Miles) - 19 loops
- Marathon (26.35 Miles) - 16 loops
- 27K (16.4 Miles) - 10 loops
- Half-Marathon (13.1 Miles) - 8 loops
- 10K (6.4 Miles) - 4 loops
- 5K (3.2 Miles) - 2 loops
- 12-Hour Solo and 12-Hour Relay (2-person teams)
Pacer rules allow personal pacers: Marathon and 50K runners may add one pacer after about eight loops; 52.7 mile runners may add one to three pacers after about sixteen loops. Each pacer must register, pay a $15 fee, sign a waiver, and wear an official pacer bib.
The 12-hour relay is an overnight event for strictly two-person teams with handoffs at the main timing mat. Relay teams receive finisher medals and event swag, and parking for relay teams is limited to one vehicle per team. Other on-site amenities include restroom vaults, camping on a first-come first-served basis, and multiple parking areas. Visit the organization's website for the most recent information.
