Flat grade share
- The Woodlands Marathon Half Marathon
- 97.9% Favoured
Spurs Austin International Half (fka 3M Half Marathon) vs The Woodlands Marathon Half Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofSpurs Austin International Half (fka 3M Half Marathon) or The Woodlands Marathon Half Marathon — which comes out ahead?
Spurs Austin International Half (fka 3M Half Marathon) and The Woodlands Marathon Half Marathon split the available advantages, so the better choice depends on which metric matters most to the runner.
Route comparison snapshot
Spurs Austin International Half (fka 3M Half Marathon)
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- -2.3% Favoured
- flat grade share
- 90.6%
- lower ascent
- 42 m
- climbing density
- 2.0 m/km
- net elevation
- -101 m
- maximum grade
- 8.1%
The Woodlands Marathon Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.0%
- flat grade share
- 97.9% Favoured
- lower ascent
- 52 m
- climbing density
- 2.5 m/km
- net elevation
- -3 m
- maximum grade
- 3.5%
| Metric | Spurs Austin International Half (fka 3M Half Marathon) | The Woodlands Marathon Half Marathon |
|---|---|---|
| Flat grade share | 90.6% | 97.9% ✓ |
| GAP factor (% slower than flat) | -2.3% ✓ | 0.0% |
| Uphill share | 2.0% | 1.1% |
| Steep-up share | 0.0% | 0.0% |
| Downhill share | 7.4% | 1.0% |
| Total ascent (m) | 42 m | 52 m |
| Climbing density (m/km) | 2.0 m/km | 2.5 m/km |
| Longest climb length (m) | 1,000 m | 1,510 m |
| Longest climb gain (m) | 11 m | 15 m |
| Longest climb average grade | 1.1% | 1.0% |
| Total descent (m) | 143 m | 55 m |
| Net elevation (m) | -101 m | -3 m |
| Max absolute grade | 8.1% | 3.5% |
| Start elevation (m) | 257 m | 44 m |
| Finish elevation (m) | 156 m | 41 m |
| Scenic score | 45/100 | 70/100 ✓ |
| Conditions | 84/100 ✓ | 67/100 |
GAP factor (% slower than flat)
- Spurs Austin International Half (fka 3M Half Marathon)
- -2.3% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
Longest climb length (m)
Longest climb gain (m)
Longest climb average grade
Total descent (m)
Net elevation (m)
Max absolute grade
Start elevation (m)
Finish elevation (m)
Scenic score
- The Woodlands Marathon Half Marathon
- 70/100 Favoured
Conditions
- Spurs Austin International Half (fka 3M Half Marathon)
- 84/100 Favoured
Only metrics available for at least one side are shown. A ✓ marks the better value for each metric (higher-is-better aware). Scores are out of 100 when available. Ascent, climbing density, max absolute grade and median finish describe course or field context and are not marked as better or worse.
Race facts that change the decision
| Fact | Spurs Austin International Half (fka 3M Half Marathon) | The Woodlands Marathon Half Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-01-18 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2027-02-27 (legacy event-level date). |
| Location | Austin, Texas | The Woodlands, Texas |
| Actual distance | 21.1 km | 21.1 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Point To Point | Loop |
| Surface | Paved roads | Unavailable |
| Elevation character | Net Downhill | Unavailable |
| Terrain | Road | Road |
| Scenery | City, Countryside, Riverside | Parkland, Forest, City, Waterfront, Lakeside |
| Atmosphere | Big City, Competitive, Festival | Community, Festival, Destination |
| Technicality | Non Technical | Unavailable |
| Total ascent | 42 m | 52 m |
| Climbing density | 2.0 m/km | 2.5 m/km |
| Total descent | 143 m | 55 m |
| Net elevation | -101 m | -3 m |
| Max absolute grade | 8.1% | 3.5% |
| Flat grade share | 90.6% | 97.9% |
| GAP factor | -2.3% | 0.0% |
| Cutoff | 4:00:00 | 6:40:00 |
| Entry model | Open | Open |
Schedule
- Spurs Austin International Half (fka 3M Half Marathon)
Exact race date not confirmed. Event weekend starts 2026-01-18 (legacy event-level date).
- The Woodlands Marathon Half Marathon
Exact race date not confirmed. Event weekend starts 2027-02-27 (legacy event-level date).
Location
- Spurs Austin International Half (fka 3M Half Marathon)
- Austin, Texas
- The Woodlands Marathon Half Marathon
- The Woodlands, Texas
Actual distance
- Spurs Austin International Half (fka 3M Half Marathon)
- 21.1 km
- The Woodlands Marathon Half Marathon
- 21.1 km
raceindex.org mapped route held
- Spurs Austin International Half (fka 3M Half Marathon)
- Held
- The Woodlands Marathon Half Marathon
- Held
raceindex.org elevation profile held
- Spurs Austin International Half (fka 3M Half Marathon)
- Held
- The Woodlands Marathon Half Marathon
- Held
Course type
- Spurs Austin International Half (fka 3M Half Marathon)
- Point To Point
- The Woodlands Marathon Half Marathon
- Loop
Surface
- Spurs Austin International Half (fka 3M Half Marathon)
- Paved roads
- The Woodlands Marathon Half Marathon
- Unavailable
Elevation character
- Spurs Austin International Half (fka 3M Half Marathon)
- Net Downhill
- The Woodlands Marathon Half Marathon
- Unavailable
Terrain
- Spurs Austin International Half (fka 3M Half Marathon)
- Road
- The Woodlands Marathon Half Marathon
- Road
Scenery
- Spurs Austin International Half (fka 3M Half Marathon)
- City, Countryside, Riverside
- The Woodlands Marathon Half Marathon
- Parkland, Forest, City, Waterfront, Lakeside
Atmosphere
- Spurs Austin International Half (fka 3M Half Marathon)
- Big City, Competitive, Festival
- The Woodlands Marathon Half Marathon
- Community, Festival, Destination
Technicality
- Spurs Austin International Half (fka 3M Half Marathon)
- Non Technical
- The Woodlands Marathon Half Marathon
- Unavailable
Total ascent
- Spurs Austin International Half (fka 3M Half Marathon)
- 42 m
- The Woodlands Marathon Half Marathon
- 52 m
Climbing density
- Spurs Austin International Half (fka 3M Half Marathon)
- 2.0 m/km
- The Woodlands Marathon Half Marathon
- 2.5 m/km
Total descent
- Spurs Austin International Half (fka 3M Half Marathon)
- 143 m
- The Woodlands Marathon Half Marathon
- 55 m
Net elevation
- Spurs Austin International Half (fka 3M Half Marathon)
- -101 m
- The Woodlands Marathon Half Marathon
- -3 m
Max absolute grade
- Spurs Austin International Half (fka 3M Half Marathon)
- 8.1%
- The Woodlands Marathon Half Marathon
- 3.5%
Flat grade share
- Spurs Austin International Half (fka 3M Half Marathon)
- 90.6%
- The Woodlands Marathon Half Marathon
- 97.9%
GAP factor
- Spurs Austin International Half (fka 3M Half Marathon)
- -2.3%
- The Woodlands Marathon Half Marathon
- 0.0%
Cutoff
- Spurs Austin International Half (fka 3M Half Marathon)
- 4:00:00
- The Woodlands Marathon Half Marathon
- 6:40:00
Entry model
- Spurs Austin International Half (fka 3M Half Marathon)
- Open
- The Woodlands Marathon Half Marathon
- Open
Facts are shown only when they exist in the sourced race record; Not held means no sourced value is held for that race.
Common questions
Which is flatter, Spurs Austin International Half (fka 3M Half Marathon) or The Woodlands Marathon Half Marathon?
Spurs Austin International Half (fka 3M Half Marathon) has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.