Flat grade share
- TBK Bank Quad Cities Marathon 5K
- 99.6% Favoured
TBK Bank Quad Cities Marathon 10K vs TBK Bank Quad Cities Marathon 5K
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofTBK Bank Quad Cities Marathon 10K or TBK Bank Quad Cities Marathon 5K — which comes out ahead?
TBK Bank Quad Cities Marathon 5K has the stronger available profile on flat grade share and course flatness.
Route comparison snapshot
TBK Bank Quad Cities Marathon 10K
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.2%
- flat grade share
- 92.7%
- lower ascent
- 29 m
- climbing density
- 2.9 m/km
- net elevation
- 1 m
- maximum grade
- 6.4%
TBK Bank Quad Cities Marathon 5K
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.0% Favoured
- flat grade share
- 99.6% Favoured
- lower ascent
- 8 m
- climbing density
- 1.6 m/km
- net elevation
- 0 m
- maximum grade
- 2.1%
| Metric | TBK Bank Quad Cities Marathon 10K | TBK Bank Quad Cities Marathon 5K |
|---|---|---|
| Flat grade share | 92.7% | 99.6% ✓ |
| GAP factor (% slower than flat) | 0.2% | 0.0% ✓ |
| Uphill share | 4.0% | 0.0% |
| Steep-up share | 0.0% | 0.0% |
| Downhill share | 3.4% | 0.4% |
| Total ascent (m) | 29 m | 8 m |
| Climbing density (m/km) | 2.9 m/km | 1.6 m/km |
| Longest climb length (m) | 570 m | 510 m |
| Longest climb gain (m) | 10 m | 2 m |
| Longest climb average grade | 1.7% | 0.5% |
| Total descent (m) | 28 m | 8 m |
| Net elevation (m) | 1 m | 0 m |
| Max absolute grade | 6.4% | 2.1% |
| Start elevation (m) | 172 m | 173 m |
| Finish elevation (m) | 173 m | 173 m |
| Scenic score | 68/100 | 68/100 |
| Conditions | 59/100 | 59/100 |
GAP factor (% slower than flat)
- TBK Bank Quad Cities Marathon 5K
- 0.0% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- TBK Bank Quad Cities Marathon 5K
- 1.6 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 | TBK Bank Quad Cities Marathon 10K | TBK Bank Quad Cities Marathon 5K |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-09-27 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-09-27 (legacy event-level date). |
| Location | Davenport, Iowa | Davenport, Iowa |
| Actual distance | 10 km | 5 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Scenery | City, Riverside, Waterfront, Island, Historic | City, Riverside, Waterfront, Island, Historic |
| Total ascent | 29 m | 8 m |
| Climbing density | 2.9 m/km | 1.6 m/km |
| Total descent | 28 m | 8 m |
| Net elevation | 1 m | 0 m |
| Max absolute grade | 6.4% | 2.1% |
| Flat grade share | 92.7% | 99.6% |
| GAP factor | 0.2% | 0.0% |
| Entry model | Open | Open |
Schedule
- TBK Bank Quad Cities Marathon 10K
Exact race date not confirmed. Event weekend starts 2026-09-27 (legacy event-level date).
- TBK Bank Quad Cities Marathon 5K
Exact race date not confirmed. Event weekend starts 2026-09-27 (legacy event-level date).
Location
- TBK Bank Quad Cities Marathon 10K
- Davenport, Iowa
- TBK Bank Quad Cities Marathon 5K
- Davenport, Iowa
Actual distance
- TBK Bank Quad Cities Marathon 10K
- 10 km
- TBK Bank Quad Cities Marathon 5K
- 5 km
raceindex.org mapped route held
- TBK Bank Quad Cities Marathon 10K
- Held
- TBK Bank Quad Cities Marathon 5K
- Held
raceindex.org elevation profile held
- TBK Bank Quad Cities Marathon 10K
- Held
- TBK Bank Quad Cities Marathon 5K
- Held
Scenery
- TBK Bank Quad Cities Marathon 10K
- City, Riverside, Waterfront, Island, Historic
- TBK Bank Quad Cities Marathon 5K
- City, Riverside, Waterfront, Island, Historic
Total ascent
- TBK Bank Quad Cities Marathon 10K
- 29 m
- TBK Bank Quad Cities Marathon 5K
- 8 m
Climbing density
- TBK Bank Quad Cities Marathon 10K
- 2.9 m/km
- TBK Bank Quad Cities Marathon 5K
- 1.6 m/km
Total descent
- TBK Bank Quad Cities Marathon 10K
- 28 m
- TBK Bank Quad Cities Marathon 5K
- 8 m
Net elevation
- TBK Bank Quad Cities Marathon 10K
- 1 m
- TBK Bank Quad Cities Marathon 5K
- 0 m
Max absolute grade
- TBK Bank Quad Cities Marathon 10K
- 6.4%
- TBK Bank Quad Cities Marathon 5K
- 2.1%
Flat grade share
- TBK Bank Quad Cities Marathon 10K
- 92.7%
- TBK Bank Quad Cities Marathon 5K
- 99.6%
GAP factor
- TBK Bank Quad Cities Marathon 10K
- 0.2%
- TBK Bank Quad Cities Marathon 5K
- 0.0%
Entry model
- TBK Bank Quad Cities Marathon 10K
- Open
- TBK Bank Quad Cities Marathon 5K
- 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, TBK Bank Quad Cities Marathon 10K or TBK Bank Quad Cities Marathon 5K?
TBK Bank Quad Cities Marathon 5K has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.