Flat grade share
- Summer Breeze Half Marathon (San Leandro)
- 100.0% Favoured
Hoag OC Marathon Running Festival Half Marathon vs Summer Breeze Half Marathon (San Leandro)
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofHoag OC Marathon Running Festival Half Marathon or Summer Breeze Half Marathon (San Leandro) — which comes out ahead?
Hoag OC Marathon Running Festival Half Marathon and Summer Breeze Half Marathon (San Leandro) split the available advantages, so the better choice depends on which metric matters most to the runner.
Route comparison snapshot
Hoag OC Marathon Running Festival Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- -0.3% Favoured
- flat grade share
- 71.8%
- lower ascent
- 125 m
- climbing density
- 5.9 m/km
- net elevation
- -32 m
- maximum grade
- 7.9%
Summer Breeze Half Marathon (San Leandro)
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.0%
- flat grade share
- 100.0% Favoured
- lower ascent
- 0 m
- climbing density
- 0.0 m/km
- net elevation
- -0 m
- maximum grade
- 1.8%
| Metric | Hoag OC Marathon Running Festival Half Marathon | Summer Breeze Half Marathon (San Leandro) |
|---|---|---|
| Flat grade share | 71.8% | 100.0% ✓ |
| GAP factor (% slower than flat) | -0.3% ✓ | 0.0% |
| Uphill share | 12.4% | 0.0% |
| Steep-up share | 0.2% | 0.0% |
| Downhill share | 15.7% | 0.0% |
| Total ascent (m) | 125 m | 0 m |
| Climbing density (m/km) | 5.9 m/km | 0.0 m/km |
| Longest climb length (m) | 660 m | 330 m |
| Longest climb gain (m) | 17 m | 1 m |
| Longest climb average grade | 2.6% | 0.3% |
| Total descent (m) | 157 m | 0 m |
| Net elevation (m) | -32 m | -0 m |
| Max absolute grade | 7.9% | 1.8% |
| Start elevation (m) | 51 m | 2 m |
| Finish elevation (m) | 19 m | 2 m |
| Scenic score | 53/100 | 57/100 ✓ |
| Conditions | 75/100 ✓ | 73/100 |
GAP factor (% slower than flat)
- Hoag OC Marathon Running Festival Half Marathon
- -0.3% 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
- Summer Breeze Half Marathon (San Leandro)
- 57/100 Favoured
Conditions
- Hoag OC Marathon Running Festival Half 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 | Hoag OC Marathon Running Festival Half Marathon | Summer Breeze Half Marathon (San Leandro) |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2027-05-01 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-08-01 (legacy event-level date). |
| Location | Costa Mesa, California | San Leandro, California |
| Actual distance | 21.1 km | 21.1 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Unavailable | Out And Back |
| Surface | Unavailable | Paved bayside trail (Marina Bay Trail / San Leandro Marina shoreline path). |
| Elevation character | Unavailable | Pancake Flat |
| Terrain | Road, Beach | Mixed, Trail |
| Scenery | Coastal, Waterfront, City, Parkland | Coastal, Waterfront, Parkland |
| Atmosphere | Festival, Scenic Tour, Community | Community, Scenic Tour |
| Technicality | Unavailable | Non Technical |
| Total ascent | 125 m | 0 m |
| Climbing density | 5.9 m/km | 0.0 m/km |
| Total descent | 157 m | 0 m |
| Net elevation | -32 m | -0 m |
| Max absolute grade | 7.9% | 1.8% |
| Flat grade share | 71.8% | 100.0% |
| GAP factor | -0.3% | 0.0% |
| Entry model | Open | Open |
Schedule
- Hoag OC Marathon Running Festival Half Marathon
Exact race date not confirmed. Event weekend starts 2027-05-01 (legacy event-level date).
- Summer Breeze Half Marathon (San Leandro)
Exact race date not confirmed. Event weekend starts 2026-08-01 (legacy event-level date).
Location
- Hoag OC Marathon Running Festival Half Marathon
- Costa Mesa, California
- Summer Breeze Half Marathon (San Leandro)
- San Leandro, California
Actual distance
- Hoag OC Marathon Running Festival Half Marathon
- 21.1 km
- Summer Breeze Half Marathon (San Leandro)
- 21.1 km
raceindex.org mapped route held
- Hoag OC Marathon Running Festival Half Marathon
- Held
- Summer Breeze Half Marathon (San Leandro)
- Held
raceindex.org elevation profile held
- Hoag OC Marathon Running Festival Half Marathon
- Held
- Summer Breeze Half Marathon (San Leandro)
- Held
Course type
- Hoag OC Marathon Running Festival Half Marathon
- Unavailable
- Summer Breeze Half Marathon (San Leandro)
- Out And Back
Surface
- Hoag OC Marathon Running Festival Half Marathon
- Unavailable
- Summer Breeze Half Marathon (San Leandro)
- Paved bayside trail (Marina Bay Trail / San Leandro Marina shoreline path).
Elevation character
- Hoag OC Marathon Running Festival Half Marathon
- Unavailable
- Summer Breeze Half Marathon (San Leandro)
- Pancake Flat
Terrain
- Hoag OC Marathon Running Festival Half Marathon
- Road, Beach
- Summer Breeze Half Marathon (San Leandro)
- Mixed, Trail
Scenery
- Hoag OC Marathon Running Festival Half Marathon
- Coastal, Waterfront, City, Parkland
- Summer Breeze Half Marathon (San Leandro)
- Coastal, Waterfront, Parkland
Atmosphere
- Hoag OC Marathon Running Festival Half Marathon
- Festival, Scenic Tour, Community
- Summer Breeze Half Marathon (San Leandro)
- Community, Scenic Tour
Technicality
- Hoag OC Marathon Running Festival Half Marathon
- Unavailable
- Summer Breeze Half Marathon (San Leandro)
- Non Technical
Total ascent
- Hoag OC Marathon Running Festival Half Marathon
- 125 m
- Summer Breeze Half Marathon (San Leandro)
- 0 m
Climbing density
- Hoag OC Marathon Running Festival Half Marathon
- 5.9 m/km
- Summer Breeze Half Marathon (San Leandro)
- 0.0 m/km
Total descent
- Hoag OC Marathon Running Festival Half Marathon
- 157 m
- Summer Breeze Half Marathon (San Leandro)
- 0 m
Net elevation
- Hoag OC Marathon Running Festival Half Marathon
- -32 m
- Summer Breeze Half Marathon (San Leandro)
- -0 m
Max absolute grade
- Hoag OC Marathon Running Festival Half Marathon
- 7.9%
- Summer Breeze Half Marathon (San Leandro)
- 1.8%
Flat grade share
- Hoag OC Marathon Running Festival Half Marathon
- 71.8%
- Summer Breeze Half Marathon (San Leandro)
- 100.0%
GAP factor
- Hoag OC Marathon Running Festival Half Marathon
- -0.3%
- Summer Breeze Half Marathon (San Leandro)
- 0.0%
Entry model
- Hoag OC Marathon Running Festival Half Marathon
- Open
- Summer Breeze Half Marathon (San Leandro)
- 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, Hoag OC Marathon Running Festival Half Marathon or Summer Breeze Half Marathon (San Leandro)?
Hoag OC Marathon Running Festival Half Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.