Flat grade share
- TBK Bank Quad Cities Marathon
- 85.7% Favoured
Cedar Rapids Marathon vs TBK Bank Quad Cities Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofCedar Rapids Marathon or TBK Bank Quad Cities Marathon — which comes out ahead?
TBK Bank Quad Cities Marathon has the stronger available profile on flat grade share, course flatness and scenery score.
Route comparison snapshot
Cedar Rapids Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 1.4%
- flat grade share
- 63.8%
- lower ascent
- 454 m
- climbing density
- 10.8 m/km
- net elevation
- -1 m
- maximum grade
- 15.8%
TBK Bank Quad Cities Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.2% Favoured
- flat grade share
- 85.7% Favoured
- lower ascent
- 180 m
- climbing density
- 4.3 m/km
- net elevation
- -5 m
- maximum grade
- 9.0%
| Metric | Cedar Rapids Marathon | TBK Bank Quad Cities Marathon |
|---|---|---|
| Flat grade share | 63.8% | 85.7% ✓ |
| GAP factor (% slower than flat) | 1.4% | 0.2% ✓ |
| Uphill share | 19.0% | 7.5% |
| Steep-up share | 4.3% | 0.2% |
| Downhill share | 17.2% | 6.7% |
| Total ascent (m) | 454 m | 180 m |
| Climbing density (m/km) | 10.8 m/km | 4.3 m/km |
| Longest climb length (m) | 480 m | 1,250 m |
| Longest climb gain (m) | 36 m | 35 m |
| Longest climb average grade | 7.5% | 2.8% |
| Total descent (m) | 455 m | 185 m |
| Net elevation (m) | -1 m | -5 m |
| Max absolute grade | 15.8% | 9.0% |
| Start elevation (m) | 217 m | 172 m |
| Finish elevation (m) | 215 m | 168 m |
| Scenic score | 76/100 | 89/100 ✓ |
| Conditions | 75/100 ✓ | 59/100 |
GAP factor (% slower than flat)
- TBK Bank Quad Cities Marathon
- 0.2% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- Cedar Rapids Marathon
- 10.8 m/km
- TBK Bank Quad Cities Marathon
- 4.3 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
- Cedar Rapids Marathon
- 76/100
- TBK Bank Quad Cities Marathon
- 89/100 Favoured
Conditions
- Cedar Rapids Marathon
- 75/100 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 | Cedar Rapids Marathon | TBK Bank Quad Cities Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2027-04-25 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-09-27 (legacy event-level date). |
| Location | Cedar Rapids, Iowa | Davenport, Iowa |
| Actual distance | 42.2 km | 42.2 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Loop | Loop |
| Surface | Road | Unavailable |
| Elevation character | Gently Rolling | Flat |
| Terrain | Road, Trail | Unavailable |
| Scenery | Riverside, City, Historic, Parkland, Waterfront | Riverside, Island, City, Waterfront, Historic |
| Atmosphere | Community, Festival | Unavailable |
| Technicality | Non Technical | Non Technical |
| Total ascent | 454 m | 180 m |
| Climbing density | 10.8 m/km | 4.3 m/km |
| Total descent | 455 m | 185 m |
| Net elevation | -1 m | -5 m |
| Max absolute grade | 15.8% | 9.0% |
| Flat grade share | 63.8% | 85.7% |
| GAP factor | 1.4% | 0.2% |
| Cutoff | 7:00:00 | 7:00:00 |
| Entry model | Open | Open |
| Qualifying status | Boston_equivalent | Boston_equivalent |
Schedule
- Cedar Rapids Marathon
Exact race date not confirmed. Event weekend starts 2027-04-25 (legacy event-level date).
- TBK Bank Quad Cities Marathon
Exact race date not confirmed. Event weekend starts 2026-09-27 (legacy event-level date).
Location
- Cedar Rapids Marathon
- Cedar Rapids, Iowa
- TBK Bank Quad Cities Marathon
- Davenport, Iowa
Actual distance
- Cedar Rapids Marathon
- 42.2 km
- TBK Bank Quad Cities Marathon
- 42.2 km
raceindex.org mapped route held
- Cedar Rapids Marathon
- Held
- TBK Bank Quad Cities Marathon
- Held
raceindex.org elevation profile held
- Cedar Rapids Marathon
- Held
- TBK Bank Quad Cities Marathon
- Held
Course type
- Cedar Rapids Marathon
- Loop
- TBK Bank Quad Cities Marathon
- Loop
Surface
- Cedar Rapids Marathon
- Road
- TBK Bank Quad Cities Marathon
- Unavailable
Elevation character
- Cedar Rapids Marathon
- Gently Rolling
- TBK Bank Quad Cities Marathon
- Flat
Terrain
- Cedar Rapids Marathon
- Road, Trail
- TBK Bank Quad Cities Marathon
- Unavailable
Scenery
- Cedar Rapids Marathon
- Riverside, City, Historic, Parkland, Waterfront
- TBK Bank Quad Cities Marathon
- Riverside, Island, City, Waterfront, Historic
Atmosphere
- Cedar Rapids Marathon
- Community, Festival
- TBK Bank Quad Cities Marathon
- Unavailable
Technicality
- Cedar Rapids Marathon
- Non Technical
- TBK Bank Quad Cities Marathon
- Non Technical
Total ascent
- Cedar Rapids Marathon
- 454 m
- TBK Bank Quad Cities Marathon
- 180 m
Climbing density
- Cedar Rapids Marathon
- 10.8 m/km
- TBK Bank Quad Cities Marathon
- 4.3 m/km
Total descent
- Cedar Rapids Marathon
- 455 m
- TBK Bank Quad Cities Marathon
- 185 m
Net elevation
- Cedar Rapids Marathon
- -1 m
- TBK Bank Quad Cities Marathon
- -5 m
Max absolute grade
- Cedar Rapids Marathon
- 15.8%
- TBK Bank Quad Cities Marathon
- 9.0%
Flat grade share
- Cedar Rapids Marathon
- 63.8%
- TBK Bank Quad Cities Marathon
- 85.7%
GAP factor
- Cedar Rapids Marathon
- 1.4%
- TBK Bank Quad Cities Marathon
- 0.2%
Cutoff
- Cedar Rapids Marathon
- 7:00:00
- TBK Bank Quad Cities Marathon
- 7:00:00
Entry model
- Cedar Rapids Marathon
- Open
- TBK Bank Quad Cities Marathon
- Open
Qualifying status
- Cedar Rapids Marathon
- Boston_equivalent
- TBK Bank Quad Cities Marathon
- Boston_equivalent
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, Cedar Rapids Marathon or TBK Bank Quad Cities Marathon?
TBK Bank Quad Cities Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.