Flat grade share
- Phoenix 10k & Half Marathon 5K
- 63.3% Favoured
Phoenix 10k & Half Marathon 5K vs Phoenix 10k & Half Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofPhoenix 10k & Half Marathon 5K or Phoenix 10k & Half Marathon — which comes out ahead?
Phoenix 10k & Half Marathon 5K and Phoenix 10k & Half Marathon split the available advantages, so the better choice depends on which metric matters most to the runner.
Route comparison snapshot
Phoenix 10k & Half Marathon 5K
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.8%
- flat grade share
- 63.3% Favoured
- lower ascent
- 45 m
- climbing density
- 9.1 m/km
- net elevation
- 0 m
- maximum grade
- 7.3%
Phoenix 10k & Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.7% Favoured
- flat grade share
- 63.2%
- lower ascent
- 93 m
- climbing density
- 9.3 m/km
- net elevation
- 0 m
- maximum grade
- 7.3%
| Metric | Phoenix 10k & Half Marathon 5K | Phoenix 10k & Half Marathon |
|---|---|---|
| Flat grade share | 63.3% ✓ | 63.2% |
| GAP factor (% slower than flat) | 0.8% | 0.7% ✓ |
| Uphill share | 18.3% | 18.2% |
| Steep-up share | 2.0% | 1.6% |
| Downhill share | 18.3% | 18.6% |
| Total ascent (m) | 45 m | 93 m |
| Climbing density (m/km) | 9.1 m/km | 9.3 m/km |
| Longest climb length (m) | 2,450 m | 900 m |
| Longest climb gain (m) | 45 m | 25 m |
| Longest climb average grade | 1.8% | 2.7% |
| Total descent (m) | 45 m | 93 m |
| Net elevation (m) | 0 m | 0 m |
| Max absolute grade | 7.3% | 7.3% |
| Start elevation (m) | 359 m | 359 m |
| Finish elevation (m) | 359 m | 359 m |
| Scenic score | 85/100 | 85/100 |
| Conditions | 71/100 | 71/100 |
GAP factor (% slower than flat)
- Phoenix 10k & Half Marathon
- 0.7% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- Phoenix 10k & Half Marathon 5K
- 9.1 m/km
- Phoenix 10k & Half Marathon
- 9.3 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
Conditions
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 | Phoenix 10k & Half Marathon 5K | Phoenix 10k & Half Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-11-08 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-11-08 (legacy event-level date). |
| Location | Phoenix, Arizona | Phoenix, Arizona |
| Actual distance | 5 km | 10 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Terrain | Road | Road |
| Scenery | City, Riverside, Waterfront, Desert, Mountain, Parkland | City, Riverside, Waterfront, Desert, Mountain, Parkland |
| Atmosphere | Big City, Competitive, Festival | Big City, Competitive, Festival |
| Total ascent | 45 m | 93 m |
| Climbing density | 9.1 m/km | 9.3 m/km |
| Total descent | 45 m | 93 m |
| Net elevation | 0 m | 0 m |
| Max absolute grade | 7.3% | 7.3% |
| Flat grade share | 63.3% | 63.2% |
| GAP factor | 0.8% | 0.7% |
| Entry model | Open | Open |
Schedule
- Phoenix 10k & Half Marathon 5K
Exact race date not confirmed. Event weekend starts 2026-11-08 (legacy event-level date).
- Phoenix 10k & Half Marathon
Exact race date not confirmed. Event weekend starts 2026-11-08 (legacy event-level date).
Location
- Phoenix 10k & Half Marathon 5K
- Phoenix, Arizona
- Phoenix 10k & Half Marathon
- Phoenix, Arizona
Actual distance
- Phoenix 10k & Half Marathon 5K
- 5 km
- Phoenix 10k & Half Marathon
- 10 km
raceindex.org mapped route held
- Phoenix 10k & Half Marathon 5K
- Held
- Phoenix 10k & Half Marathon
- Held
raceindex.org elevation profile held
- Phoenix 10k & Half Marathon 5K
- Held
- Phoenix 10k & Half Marathon
- Held
Terrain
- Phoenix 10k & Half Marathon 5K
- Road
- Phoenix 10k & Half Marathon
- Road
Scenery
- Phoenix 10k & Half Marathon 5K
- City, Riverside, Waterfront, Desert, Mountain, Parkland
- Phoenix 10k & Half Marathon
- City, Riverside, Waterfront, Desert, Mountain, Parkland
Atmosphere
- Phoenix 10k & Half Marathon 5K
- Big City, Competitive, Festival
- Phoenix 10k & Half Marathon
- Big City, Competitive, Festival
Total ascent
- Phoenix 10k & Half Marathon 5K
- 45 m
- Phoenix 10k & Half Marathon
- 93 m
Climbing density
- Phoenix 10k & Half Marathon 5K
- 9.1 m/km
- Phoenix 10k & Half Marathon
- 9.3 m/km
Total descent
- Phoenix 10k & Half Marathon 5K
- 45 m
- Phoenix 10k & Half Marathon
- 93 m
Net elevation
- Phoenix 10k & Half Marathon 5K
- 0 m
- Phoenix 10k & Half Marathon
- 0 m
Max absolute grade
- Phoenix 10k & Half Marathon 5K
- 7.3%
- Phoenix 10k & Half Marathon
- 7.3%
Flat grade share
- Phoenix 10k & Half Marathon 5K
- 63.3%
- Phoenix 10k & Half Marathon
- 63.2%
GAP factor
- Phoenix 10k & Half Marathon 5K
- 0.8%
- Phoenix 10k & Half Marathon
- 0.7%
Entry model
- Phoenix 10k & Half Marathon 5K
- Open
- Phoenix 10k & 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, Phoenix 10k & Half Marathon 5K or Phoenix 10k & Half Marathon?
Phoenix 10k & Half Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.