2026 edition
Entry options are not yet confirmed for this edition. Check the organiser before making plans.
Modelled energy-cost change -2.3% versus flat · net elevation -101 m
Decision summary
Lower than 95% of comparable mapped races
4:00:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.
Historical race-date favourability, not a forecast
Stored GPS route
Quick answers
raceindex.org has a GPS course file for Spurs Austin International Half (fka 3M Half Marathon), so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.
The Spurs Austin International Half (fka 3M Half Marathon) route has 42 m of ascent, 143 m of descent and an estimated -2.3% grade-adjusted pace penalty versus a flat route.
The Spurs Austin International Half (fka 3M Half Marathon) route starts at In front of Regal Gateway Theater, 9800 Stonelake Blvd, north Austin, TX 78759 and finishes at 14th & San Jacinto, next to the Texas State Capitol in downtown Austin. Underfoot, expect paved roads. It passes Stonelake Boulevard, Shoal Creek, University of Texas campus and Texas State Capitol.
Gear check on buses lined up along Stonelake Blvd by the Gateway Theater; opens 5:30 a.m. on race morning. Clear bag with bib number required. Course fully supported on closed/managed roads with rolling closures; course remains open for 4 hours. Live music on course and at the finish line festival. 8. Pace groups provided by the Twenty-Six Two Marathon Club for finish times 1:30, 1:35, 1:40, 1:45, 1:50, 1:55, 2:00, 2:05, 2:10, 2:15 and 2:20.
The stored route produces 42 m of ascent, while a source states 63 m. GPS sampling and elevation models can produce different totals, so both are labelled rather than combined.
Its normalised GAP factor is -2.3% slower than a flat course, with about 42 m of total ascent.