La Jolla Half Marathon, 10K & 5K or La Jolla Half Marathon, 10K & 5K — which comes out ahead?

La Jolla Half Marathon, 10K & 5K has the stronger available profile on flat grade share and scenery score.

Route comparison snapshot

La Jolla Half Marathon, 10K & 5K

Mapped route
Held
Elevation profile
Held
course flatness
-4.5%
flat grade share
56.0% Favoured
lower ascent
76 m
climbing density
7.6 m/km
net elevation
-121 m
maximum grade
12.4%

La Jolla Half Marathon, 10K & 5K

Mapped route
Held
Elevation profile
Held
course flatness
-7.4% Favoured
flat grade share
39.7%
lower ascent
47 m
climbing density
9.4 m/km
net elevation
-102 m
maximum grade
12.6%
Head-to-head comparison
MetricLa Jolla Half Marathon, 10K & 5KLa Jolla Half Marathon, 10K & 5K
Flat grade share56.0%39.7%
GAP factor (% slower than flat)-4.5%-7.4%
Uphill share11.3%15.7%
Steep-up share1.8%5.5%
Downhill share32.6%44.6%
Total ascent (m)76 m47 m
Climbing density (m/km)7.6 m/km9.4 m/km
Longest climb length (m)630 m630 m
Longest climb gain (m)25 m25 m
Longest climb average grade4.0%4.0%
Total descent (m)197 m149 m
Net elevation (m)-121 m-102 m
Max absolute grade12.4%12.6%
Start elevation (m)132 m112 m
Finish elevation (m)10 m10 m
Scenic score73/10053/100
Conditions76/10076/100

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

Race facts comparison
FactLa Jolla Half Marathon, 10K & 5KLa Jolla Half Marathon, 10K & 5K
Schedule

Exact race date not confirmed. Event weekend starts 2027-05-15 (legacy event-level date).

Exact race date not confirmed. Event weekend starts 2027-05-15 (legacy event-level date).

LocationLa Jolla, San Diego, CaliforniaLa Jolla, San Diego, California
Actual distance10 km5 km
raceindex.org mapped route heldHeldHeld
raceindex.org elevation profile heldHeldHeld
Elevation characterNet DownhillNet Downhill
TerrainRoadRoad
SceneryForest, Coastal, Waterfront, Parkland, CityCoastal, Waterfront, Parkland, City
AtmosphereScenic Tour, Destination, CompetitiveScenic Tour, Destination, Competitive
Total ascent76 m47 m
Climbing density7.6 m/km9.4 m/km
Total descent197 m149 m
Net elevation-121 m-102 m
Max absolute grade12.4%12.6%
Flat grade share56.0%39.7%
GAP factor-4.5%-7.4%
Entry modelOpenOpen

Schedule

La Jolla Half Marathon, 10K & 5K

Exact race date not confirmed. Event weekend starts 2027-05-15 (legacy event-level date).

La Jolla Half Marathon, 10K & 5K

Exact race date not confirmed. Event weekend starts 2027-05-15 (legacy event-level date).

Location

La Jolla Half Marathon, 10K & 5K
La Jolla, San Diego, California
La Jolla Half Marathon, 10K & 5K
La Jolla, San Diego, California

Actual distance

La Jolla Half Marathon, 10K & 5K
10 km
La Jolla Half Marathon, 10K & 5K
5 km

raceindex.org mapped route held

La Jolla Half Marathon, 10K & 5K
Held
La Jolla Half Marathon, 10K & 5K
Held

raceindex.org elevation profile held

La Jolla Half Marathon, 10K & 5K
Held
La Jolla Half Marathon, 10K & 5K
Held

Elevation character

La Jolla Half Marathon, 10K & 5K
Net Downhill
La Jolla Half Marathon, 10K & 5K
Net Downhill

Terrain

La Jolla Half Marathon, 10K & 5K
Road
La Jolla Half Marathon, 10K & 5K
Road

Scenery

La Jolla Half Marathon, 10K & 5K
Forest, Coastal, Waterfront, Parkland, City
La Jolla Half Marathon, 10K & 5K
Coastal, Waterfront, Parkland, City

Atmosphere

La Jolla Half Marathon, 10K & 5K
Scenic Tour, Destination, Competitive
La Jolla Half Marathon, 10K & 5K
Scenic Tour, Destination, Competitive

Total ascent

La Jolla Half Marathon, 10K & 5K
76 m
La Jolla Half Marathon, 10K & 5K
47 m

Climbing density

La Jolla Half Marathon, 10K & 5K
7.6 m/km
La Jolla Half Marathon, 10K & 5K
9.4 m/km

Total descent

La Jolla Half Marathon, 10K & 5K
197 m
La Jolla Half Marathon, 10K & 5K
149 m

Net elevation

La Jolla Half Marathon, 10K & 5K
-121 m
La Jolla Half Marathon, 10K & 5K
-102 m

Max absolute grade

La Jolla Half Marathon, 10K & 5K
12.4%
La Jolla Half Marathon, 10K & 5K
12.6%

Flat grade share

La Jolla Half Marathon, 10K & 5K
56.0%
La Jolla Half Marathon, 10K & 5K
39.7%

GAP factor

La Jolla Half Marathon, 10K & 5K
-4.5%
La Jolla Half Marathon, 10K & 5K
-7.4%

Entry model

La Jolla Half Marathon, 10K & 5K
Open
La Jolla Half Marathon, 10K & 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, La Jolla Half Marathon, 10K & 5K or La Jolla Half Marathon, 10K & 5K?

La Jolla Half Marathon, 10K & 5K has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.

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