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 course flatness.

Route comparison snapshot

La Jolla Half Marathon, 10K & 5K

Mapped route
Held
Elevation profile
Held
course flatness
-4.5% Favoured
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
2.4%
flat grade share
52.5%
lower ascent
304 m
climbing density
14.4 m/km
net elevation
7 m
maximum grade
26.6%
Head-to-head comparison
MetricLa Jolla Half Marathon, 10K & 5KLa Jolla Half Marathon, 10K & 5K
Flat grade share56.0%52.5%
GAP factor (% slower than flat)-4.5%2.4%
Uphill share11.3%23.8%
Steep-up share1.8%7.5%
Downhill share32.6%23.7%
Total ascent (m)76 m304 m
Climbing density (m/km)7.6 m/km14.4 m/km
Longest climb length (m)630 m1,650 m
Longest climb gain (m)25 m102 m
Longest climb average grade4.0%6.2%
Total descent (m)197 m297 m
Net elevation (m)-121 m7 m
Max absolute grade12.4%26.6%
Start elevation (m)132 m3 m
Finish elevation (m)10 m10 m
Scenic score73/100100/100
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 km21.1 km
raceindex.org mapped route heldHeldHeld
raceindex.org elevation profile heldHeldHeld
Course typeUnavailablePoint To Point
SurfaceUnavailablePaved coastal roads.
Elevation characterNet DownhillHilly
TerrainRoadRoad
SceneryForest, Coastal, Waterfront, Parkland, CityCoastal, Mountain, Forest, Waterfront, Parkland, City
AtmosphereScenic Tour, Destination, CompetitiveScenic Tour, Destination, Competitive
TechnicalityUnavailableNon Technical
Total ascent76 m304 m
Climbing density7.6 m/km14.4 m/km
Total descent197 m297 m
Net elevation-121 m7 m
Max absolute grade12.4%26.6%
Flat grade share56.0%52.5%
GAP factor-4.5%2.4%
CutoffUnavailable3:30:00
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
21.1 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

Course type

La Jolla Half Marathon, 10K & 5K
Unavailable
La Jolla Half Marathon, 10K & 5K
Point To Point

Surface

La Jolla Half Marathon, 10K & 5K
Unavailable
La Jolla Half Marathon, 10K & 5K
Paved coastal roads.

Elevation character

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

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, Mountain, Forest, Waterfront, Parkland, City

Atmosphere

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

Technicality

La Jolla Half Marathon, 10K & 5K
Unavailable
La Jolla Half Marathon, 10K & 5K
Non Technical

Total ascent

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

Climbing density

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

Total descent

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

Net elevation

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

Max absolute grade

La Jolla Half Marathon, 10K & 5K
12.4%
La Jolla Half Marathon, 10K & 5K
26.6%

Flat grade share

La Jolla Half Marathon, 10K & 5K
56.0%
La Jolla Half Marathon, 10K & 5K
52.5%

GAP factor

La Jolla Half Marathon, 10K & 5K
-4.5%
La Jolla Half Marathon, 10K & 5K
2.4%

Cutoff

La Jolla Half Marathon, 10K & 5K
Unavailable
La Jolla Half Marathon, 10K & 5K
3:30:00

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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How figures are calculated →