Ascension Seton Austin Marathon: Course, Elevation & Route Profile

Course & Elevation

The race starts on Congress Avenue at 2nd Street, a few metres from the Colorado River. It crosses the Congress Avenue bridge heading south, and from there the course shows its hand at once: South Congress Avenue climbs almost continuously, 84 metres in the first 6.5 kilometres, to the highest point of the day at 208 metres where Ben White Boulevard meets South 1st Street. South 1st Street gives all of it back, and at kilometre 11 the course is at its lowest point, 132 metres, back beside the river.

The middle third goes looking for the hills west of downtown. After flat kilometres along Cesar Chavez Street and past Zilker Park, Lake Austin Boulevard starts to pull, and Enfield Road delivers two short ramps at kilometres 15.6 and 17.8, each a little over 300 metres at 3.6 to 3.7 per cent average and up to 6.1 per cent. At West 15th Street the half marathon turns for home. The marathon carries on north along Guadalupe Street past the edge of the UT campus, then 38th Street and Speedway as far as 45th Street, taking another 78 metres of climbing between kilometre 19 and kilometre 27.

From there the course drops east and becomes the quietest part of the day: between kilometre 34 and kilometre 41.5, out in East Austin, there are only 21 metres of climbing left. That is exactly where the quiet ends. At kilometre 41.7 East 11th Street rises 19 metres over 330 metres at 5.7 per cent average and 7.8 per cent maximum, the last hill of the day; at the top the course turns onto Congress Avenue and runs the final blocks slightly downhill towards the Capitol. Along the way the organiser positions 24 live acts between mile 0.7 and mile 24.2, 22 aid stations, and an estimated 75,000 spectators on closed streets.

Pacing Strategy

Just under half the course sits below one per cent gradient, but the climbing is unevenly distributed: 244 of the 316 metres come in the first 27 kilometres. The first and most expensive trap is therefore South Congress Avenue. Six kilometres of uphill, run on fresh legs with music from mile 0.7 and a dense crowd, feel effortless at goal pace, and the bill arrives from kilometre 30 onwards. Deliberately run that stretch ten to twenty seconds per kilometre slower and take the time back on the South 1st Street descent without forcing it.

The race is decided between kilometre 19 and kilometre 27. The half marathon field peels off at West 15th Street, the streets become noticeably emptier, and at the same time the course pulls another 78 metres upward along Guadalupe Street and Speedway. Anyone who has overspent by then loses the rhythm here and will not find it again on the flat eastern half.

The second trap is that flat stretch itself, kilometre 34 to 41.5. It invites you to spend, and the East 11th Street ramp at kilometre 41.7 is still to come at close to six per cent. Keep something back for it; from the top there are only two gently descending blocks to the line. And plan for whatever a February morning in central Texas produces - the organiser quotes a race-day range of 7 to 18 C. At 18 C with humid Gulf air the South Congress climb becomes a heat problem; at freezing point it becomes a clothing problem. Decide what to wear on the morning itself, and choose something you can shed on the way.

Training plan for Ascension Seton Austin Marathon: 12-week build

For an age-group runner this marathon lasts somewhere between three and five and a half hours; the organiser's limit is seven. The character is aerobic throughout but anything but uniform: the course alternates between climb, descent and flat every few kilometres, and none of those phases lasts longer than about twenty minutes. What it asks for is less the ability to hold one pace than the ability to hold one effort while the ground keeps changing under you.

Four sections shape the preparation: the long pull up South Congress Avenue at the very start, the two short Enfield ramps at kilometres 15.6 and 17.8, the lonely northern section between kilometre 19 and kilometre 27, and the closing ramp at kilometre 41.7. Rehearse that last one regularly - a short climb of roughly 300 metres at close to six per cent, tacked onto the end of a long run and taken on tired legs.

Do not underestimate the descending. Between kilometre 27 and kilometre 34 the course gives back a good 44 metres, and together with the South 1st Street descent in the first third the day adds up to more than 300 metres of downhill on asphalt. Relaxed downhill running at a high cadence belongs in the plan; without it the quadriceps give out precisely on the flat eastern loop, where pace ought to be cheap.

Conditions belong in the same plan. February in central Texas means race-day figures between 7 and 18 C, often with humid air off the Gulf, and much of the course offers no shade. If you are travelling in from a cold winter, put at least a few long runs into milder temperatures and into the kit you would realistically race in. The surface is asphalt from start to finish, so no off-road work is needed - but the long runs belong on a rolling road profile, not on the flat loop at home.