Flat grade share
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Naptown Half Marathon & 10K/5K vs Chesapeake Bay Bridge Run (Annapolis) 10K
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofNaptown Half Marathon & 10K/5K or Chesapeake Bay Bridge Run (Annapolis) 10K — which comes out ahead?
Chesapeake Bay Bridge Run (Annapolis) 10K has the stronger available profile on scenery score and conditions.
Route comparison snapshot
Naptown Half Marathon & 10K/5K
- Mapped route
- Held Favoured
- Elevation profile
- Held Favoured
- course flatness
- 0.5%
- flat grade share
- 79.8%
- lower ascent
- 63 m
- climbing density
- 6.3 m/km
- net elevation
- -0 m
- maximum grade
- 9.3%
Chesapeake Bay Bridge Run (Annapolis) 10K
- 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 | Naptown Half Marathon & 10K/5K | Chesapeake Bay Bridge Run (Annapolis) 10K |
|---|---|---|
| Flat grade share | 79.8% | Unavailable |
| GAP factor (% slower than flat) | 0.5% | Unavailable |
| Uphill share | 10.9% | Unavailable |
| Steep-up share | 0.4% | Unavailable |
| Downhill share | 9.4% | Unavailable |
| Total ascent (m) | 63 m | Unavailable |
| Climbing density (m/km) | 6.3 m/km | Unavailable |
| Longest climb length (m) | 640 m | Unavailable |
| Longest climb gain (m) | 10 m | Unavailable |
| Longest climb average grade | 1.5% | Unavailable |
| Total descent (m) | 63 m | Unavailable |
| Net elevation (m) | -0 m | Unavailable |
| Max absolute grade | 9.3% | Unavailable |
| Start elevation (m) | 18 m | Unavailable |
| Finish elevation (m) | 18 m | Unavailable |
| Scenic score | 78/100 | 82/100 ✓ |
| Conditions | 76/100 | 87/100 ✓ |
GAP factor (% slower than flat)
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Uphill share
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Steep-up share
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Downhill share
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Total ascent (m)
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Climbing density (m/km)
- Naptown Half Marathon & 10K/5K
- 6.3 m/km
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Longest climb length (m)
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Longest climb gain (m)
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Longest climb average grade
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Total descent (m)
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Net elevation (m)
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Max absolute grade
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Start elevation (m)
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Finish elevation (m)
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Scenic score
- Chesapeake Bay Bridge Run (Annapolis) 10K
- 82/100 Favoured
Conditions
- Chesapeake Bay Bridge Run (Annapolis) 10K
- 87/100 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 | Naptown Half Marathon & 10K/5K | Chesapeake Bay Bridge Run (Annapolis) 10K |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-12-19 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-11-08 (legacy event-level date). |
| Location | Annapolis, Maryland | Annapolis, Maryland |
| Actual distance | 10 km | 10 km |
| raceindex.org mapped route held | Held | Not held |
| raceindex.org elevation profile held | Held | Not held |
| Course type | Unavailable | Point To Point |
| Surface | Unavailable | Paved bridge roadway |
| Elevation character | Unavailable | Rolling |
| Terrain | Trail | Road |
| Scenery | City, Historic, Waterfront, Riverside, Forest, Parkland | Mountain, Coastal, Waterfront, Parkland |
| Atmosphere | Scenic Tour, Community | Festival, Destination, Scenic Tour |
| Technicality | Unavailable | Non Technical |
| Total ascent | 63 m | 61 m |
| Climbing density | 6.3 m/km | Unavailable |
| Total descent | 63 m | 61 m |
| Net elevation | -0 m | Unavailable |
| Max absolute grade | 9.3% | 3.0% |
| Flat grade share | 79.8% | Unavailable |
| GAP factor | 0.5% | Unavailable |
| Entry model | Open | Open |
Schedule
- Naptown Half Marathon & 10K/5K
Exact race date not confirmed. Event weekend starts 2026-12-19 (legacy event-level date).
- Chesapeake Bay Bridge Run (Annapolis) 10K
Exact race date not confirmed. Event weekend starts 2026-11-08 (legacy event-level date).
Location
- Naptown Half Marathon & 10K/5K
- Annapolis, Maryland
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Annapolis, Maryland
Actual distance
- Naptown Half Marathon & 10K/5K
- 10 km
- Chesapeake Bay Bridge Run (Annapolis) 10K
- 10 km
raceindex.org mapped route held
- Naptown Half Marathon & 10K/5K
- Held
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Not held
raceindex.org elevation profile held
- Naptown Half Marathon & 10K/5K
- Held
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Not held
Course type
- Naptown Half Marathon & 10K/5K
- Unavailable
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Point To Point
Surface
- Naptown Half Marathon & 10K/5K
- Unavailable
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Paved bridge roadway
Elevation character
- Naptown Half Marathon & 10K/5K
- Unavailable
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Rolling
Terrain
- Naptown Half Marathon & 10K/5K
- Trail
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Road
Scenery
- Naptown Half Marathon & 10K/5K
- City, Historic, Waterfront, Riverside, Forest, Parkland
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Mountain, Coastal, Waterfront, Parkland
Atmosphere
- Naptown Half Marathon & 10K/5K
- Scenic Tour, Community
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Festival, Destination, Scenic Tour
Technicality
- Naptown Half Marathon & 10K/5K
- Unavailable
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Non Technical
Total ascent
- Naptown Half Marathon & 10K/5K
- 63 m
- Chesapeake Bay Bridge Run (Annapolis) 10K
- 61 m
Climbing density
- Naptown Half Marathon & 10K/5K
- 6.3 m/km
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Total descent
- Naptown Half Marathon & 10K/5K
- 63 m
- Chesapeake Bay Bridge Run (Annapolis) 10K
- 61 m
Net elevation
- Naptown Half Marathon & 10K/5K
- -0 m
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Max absolute grade
- Naptown Half Marathon & 10K/5K
- 9.3%
- Chesapeake Bay Bridge Run (Annapolis) 10K
- 3.0%
Flat grade share
- Naptown Half Marathon & 10K/5K
- 79.8%
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
GAP factor
- Naptown Half Marathon & 10K/5K
- 0.5%
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Unavailable
Entry model
- Naptown Half Marathon & 10K/5K
- Open
- Chesapeake Bay Bridge Run (Annapolis) 10K
- Open
Facts are shown only when they exist in the sourced race record; Not held means no sourced value is held for that race.