Flat grade share
- Girdwood Marathon
- 32.9%
- Girdwood Marathon Half Marathon
- Unavailable
Girdwood Marathon vs Girdwood Marathon Half Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofGirdwood Marathon or Girdwood Marathon Half Marathon — which comes out ahead?
The available sourced metrics do not create a clear lead; use the table to compare the held route, cost and race-day evidence.
Route comparison snapshot
Girdwood Marathon
- Mapped route
- Held Favoured
- Elevation profile
- Held Favoured
- course flatness
- 6.8%
- flat grade share
- 32.9%
- lower ascent
- 1,076 m
- climbing density
- 25.5 m/km
- net elevation
- 4 m
- maximum grade
- 34.7%
Girdwood Marathon Half Marathon
- Mapped route
- Not held
- Elevation profile
- Not held
- course flatness
- Unavailable
- flat grade share
- Unavailable
- lower ascent
- Unavailable
- climbing density
- Unavailable
- net elevation
- Unavailable
- maximum grade
- Unavailable
| Metric | Girdwood Marathon | Girdwood Marathon Half Marathon |
|---|---|---|
| Flat grade share | 32.9% | Unavailable |
| GAP factor (% slower than flat) | 6.8% | Unavailable |
| Uphill share | 34.6% | Unavailable |
| Steep-up share | 17.5% | Unavailable |
| Downhill share | 32.5% | Unavailable |
| Total ascent (m) | 1,076 m | Unavailable |
| Climbing density (m/km) | 25.5 m/km | Unavailable |
| Longest climb length (m) | 1,500 m | Unavailable |
| Longest climb gain (m) | 182 m | Unavailable |
| Longest climb average grade | 12.1% | Unavailable |
| Total descent (m) | 1,073 m | Unavailable |
| Net elevation (m) | 4 m | Unavailable |
| Max absolute grade | 34.7% | Unavailable |
| Start elevation (m) | 95 m | Unavailable |
| Finish elevation (m) | 99 m | Unavailable |
| Scenic score | 100/100 | 100/100 |
| Conditions | 72/100 | 72/100 |
GAP factor (% slower than flat)
- Girdwood Marathon Half Marathon
- Unavailable
Uphill share
- Girdwood Marathon
- 34.6%
- Girdwood Marathon Half Marathon
- Unavailable
Steep-up share
- Girdwood Marathon
- 17.5%
- Girdwood Marathon Half Marathon
- Unavailable
Downhill share
- Girdwood Marathon
- 32.5%
- Girdwood Marathon Half Marathon
- Unavailable
Total ascent (m)
- Girdwood Marathon
- 1,076 m
- Girdwood Marathon Half Marathon
- Unavailable
Climbing density (m/km)
- Girdwood Marathon
- 25.5 m/km
- Girdwood Marathon Half Marathon
- Unavailable
Longest climb length (m)
- Girdwood Marathon
- 1,500 m
- Girdwood Marathon Half Marathon
- Unavailable
Longest climb gain (m)
- Girdwood Marathon
- 182 m
- Girdwood Marathon Half Marathon
- Unavailable
Longest climb average grade
- Girdwood Marathon
- 12.1%
- Girdwood Marathon Half Marathon
- Unavailable
Total descent (m)
- Girdwood Marathon
- 1,073 m
- Girdwood Marathon Half Marathon
- Unavailable
Net elevation (m)
- Girdwood Marathon Half Marathon
- Unavailable
Max absolute grade
- Girdwood Marathon
- 34.7%
- Girdwood Marathon Half Marathon
- Unavailable
Start elevation (m)
- Girdwood Marathon Half Marathon
- Unavailable
Finish elevation (m)
- Girdwood Marathon Half Marathon
- Unavailable
Scenic score
- Girdwood Marathon
- 100/100
Conditions
- Girdwood Marathon
- 72/100
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.
Same-distance comparisons are most meaningful; cross-distance metrics are contextual.
Race facts that change the decision
| Fact | Girdwood Marathon | Girdwood Marathon Half Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-10-03 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-10-03 (legacy event-level date). |
| Location | Girdwood, Alaska | Girdwood, Alaska |
| Actual distance | 42.2 km | 21.1 km |
| raceindex.org mapped route held | Held | Not held |
| raceindex.org elevation profile held | Held | Not held |
| Course type | Laps | Unavailable |
| Surface | Soft mountain trails, often wet in October | Soft mountain trails, often wet in October |
| Elevation character | Hilly | Unavailable |
| Terrain | Trail | Trail |
| Scenery | Forest, Waterfront, Mountain, Riverside, Lakeside, Coastal | Forest, Waterfront, Mountain, Riverside, Lakeside, Coastal |
| Atmosphere | Wilderness, Community, Destination | Wilderness, Community, Destination |
| Technicality | Technical | Unavailable |
| Total ascent | 1,076 m | Unavailable |
| Climbing density | 25.5 m/km | Unavailable |
| Total descent | 1,073 m | Unavailable |
| Net elevation | 4 m | Unavailable |
| Max absolute grade | 34.7% | Unavailable |
| Flat grade share | 32.9% | Unavailable |
| GAP factor | 6.8% | Unavailable |
| Field cap | 83 | 215 |
| Entry model | Open | Open |
Schedule
- Girdwood Marathon
Exact race date not confirmed. Event weekend starts 2026-10-03 (legacy event-level date).
- Girdwood Marathon Half Marathon
Exact race date not confirmed. Event weekend starts 2026-10-03 (legacy event-level date).
Location
- Girdwood Marathon
- Girdwood, Alaska
- Girdwood Marathon Half Marathon
- Girdwood, Alaska
Actual distance
- Girdwood Marathon
- 42.2 km
- Girdwood Marathon Half Marathon
- 21.1 km
raceindex.org mapped route held
- Girdwood Marathon
- Held
- Girdwood Marathon Half Marathon
- Not held
raceindex.org elevation profile held
- Girdwood Marathon
- Held
- Girdwood Marathon Half Marathon
- Not held
Course type
- Girdwood Marathon
- Laps
- Girdwood Marathon Half Marathon
- Unavailable
Surface
- Girdwood Marathon
- Soft mountain trails, often wet in October
- Girdwood Marathon Half Marathon
- Soft mountain trails, often wet in October
Elevation character
- Girdwood Marathon
- Hilly
- Girdwood Marathon Half Marathon
- Unavailable
Terrain
- Girdwood Marathon
- Trail
- Girdwood Marathon Half Marathon
- Trail
Scenery
- Girdwood Marathon
- Forest, Waterfront, Mountain, Riverside, Lakeside, Coastal
- Girdwood Marathon Half Marathon
- Forest, Waterfront, Mountain, Riverside, Lakeside, Coastal
Atmosphere
- Girdwood Marathon
- Wilderness, Community, Destination
- Girdwood Marathon Half Marathon
- Wilderness, Community, Destination
Technicality
- Girdwood Marathon
- Technical
- Girdwood Marathon Half Marathon
- Unavailable
Total ascent
- Girdwood Marathon
- 1,076 m
- Girdwood Marathon Half Marathon
- Unavailable
Climbing density
- Girdwood Marathon
- 25.5 m/km
- Girdwood Marathon Half Marathon
- Unavailable
Total descent
- Girdwood Marathon
- 1,073 m
- Girdwood Marathon Half Marathon
- Unavailable
Net elevation
- Girdwood Marathon
- 4 m
- Girdwood Marathon Half Marathon
- Unavailable
Max absolute grade
- Girdwood Marathon
- 34.7%
- Girdwood Marathon Half Marathon
- Unavailable
Flat grade share
- Girdwood Marathon
- 32.9%
- Girdwood Marathon Half Marathon
- Unavailable
GAP factor
- Girdwood Marathon
- 6.8%
- Girdwood Marathon Half Marathon
- Unavailable
Field cap
- Girdwood Marathon
- 83
- Girdwood Marathon Half Marathon
- 215
Entry model
- Girdwood Marathon
- Open
- Girdwood 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.