Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA) vs Boston's Run to Remember Half Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofCambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA) or Boston's Run to Remember Half Marathon — which comes out ahead?
Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA) and Boston's Run to Remember Half Marathon split the available advantages, so the better choice depends on which metric matters most to the runner.
Route comparison snapshot
Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 2.4%
- flat grade share
- 58.3% Favoured
- lower ascent
- 273 m
- climbing density
- 12.9 m/km
- net elevation
- 3 m
- maximum grade
- 26.7%
Boston's Run to Remember Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 2.2% Favoured
- flat grade share
- 55.1%
- lower ascent
- 269 m
- climbing density
- 12.8 m/km
- net elevation
- -1 m
- maximum grade
- 26.2%
| Metric | Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA) | Boston's Run to Remember Half Marathon |
|---|---|---|
| Flat grade share | 58.3% ✓ | 55.1% |
| GAP factor (% slower than flat) | 2.4% | 2.2% ✓ |
| Uphill share | 21.0% | 23.2% |
| Steep-up share | 5.7% | 5.0% |
| Downhill share | 20.8% | 21.7% |
| Total ascent (m) | 273 m | 269 m |
| Climbing density (m/km) | 12.9 m/km | 12.8 m/km |
| Longest climb length (m) | 390 m | 910 m |
| Longest climb gain (m) | 22 m | 42 m |
| Longest climb average grade | 5.5% | 4.6% |
| Total descent (m) | 270 m | 270 m |
| Net elevation (m) | 3 m | -1 m |
| Max absolute grade | 26.7% | 26.2% |
| Start elevation (m) | 15 m | 11 m |
| Finish elevation (m) | 18 m | 10 m |
| Scenic score | 66/100 | 100/100 ✓ |
| Conditions | 84/100 ✓ | 60/100 |
GAP factor (% slower than flat)
- Boston's Run to Remember Half Marathon
- 2.2% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (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
- Boston's Run to Remember Half Marathon
- 100/100 Favoured
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.
Race facts that change the decision
| Fact | Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA) | Boston's Run to Remember Half Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-10-31 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2027-05-30 (legacy event-level date). |
| Location | Cambridge, Massachusetts | Boston, Massachusetts |
| Actual distance | 21.1 km | 21.1 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Surface | Paved city roads and riverfront paths, including Memorial Drive. | Road |
| Elevation character | Flat | Gently Rolling |
| Terrain | Road | Road, Fell |
| Scenery | Riverside, City, Waterfront, Historic | Mountain, Riverside, City, Historic, Waterfront, Parkland |
| Atmosphere | Charity, Big City, Community | Big City, Charity, Community |
| Technicality | Non Technical | Non Technical |
| Total ascent | 273 m | 269 m |
| Climbing density | 12.9 m/km | 12.8 m/km |
| Total descent | 270 m | 270 m |
| Net elevation | 3 m | -1 m |
| Max absolute grade | 26.7% | 26.2% |
| Flat grade share | 58.3% | 55.1% |
| GAP factor | 2.4% | 2.2% |
| Cutoff | Unavailable | 3:00:00 |
| Entry model | Open | Open |
Schedule
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
Exact race date not confirmed. Event weekend starts 2026-10-31 (legacy event-level date).
- Boston's Run to Remember Half Marathon
Exact race date not confirmed. Event weekend starts 2027-05-30 (legacy event-level date).
Location
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- Cambridge, Massachusetts
- Boston's Run to Remember Half Marathon
- Boston, Massachusetts
Actual distance
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- 21.1 km
- Boston's Run to Remember Half Marathon
- 21.1 km
raceindex.org mapped route held
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- Held
- Boston's Run to Remember Half Marathon
- Held
raceindex.org elevation profile held
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- Held
- Boston's Run to Remember Half Marathon
- Held
Surface
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- Paved city roads and riverfront paths, including Memorial Drive.
- Boston's Run to Remember Half Marathon
- Road
Elevation character
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- Flat
- Boston's Run to Remember Half Marathon
- Gently Rolling
Terrain
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- Road
- Boston's Run to Remember Half Marathon
- Road, Fell
Scenery
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- Riverside, City, Waterfront, Historic
- Boston's Run to Remember Half Marathon
- Mountain, Riverside, City, Historic, Waterfront, Parkland
Atmosphere
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- Charity, Big City, Community
- Boston's Run to Remember Half Marathon
- Big City, Charity, Community
Technicality
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- Non Technical
- Boston's Run to Remember Half Marathon
- Non Technical
Total ascent
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- 273 m
- Boston's Run to Remember Half Marathon
- 269 m
Climbing density
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- 12.9 m/km
- Boston's Run to Remember Half Marathon
- 12.8 m/km
Total descent
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- 270 m
- Boston's Run to Remember Half Marathon
- 270 m
Net elevation
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- 3 m
- Boston's Run to Remember Half Marathon
- -1 m
Max absolute grade
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- 26.7%
- Boston's Run to Remember Half Marathon
- 26.2%
Flat grade share
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- 58.3%
- Boston's Run to Remember Half Marathon
- 55.1%
GAP factor
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- 2.4%
- Boston's Run to Remember Half Marathon
- 2.2%
Cutoff
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- Unavailable
- Boston's Run to Remember Half Marathon
- 3:00:00
Entry model
- Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA)
- Open
- Boston's Run to Remember 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, Cambridge Half Marathon + 5K at CambridgeSide (Cambridge, MA) or Boston's Run to Remember Half Marathon?
Boston's Run to Remember Half Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.