Beach to Bay Relay Marathon or Spurs Austin International Half (fka 3M Half Marathon) Relay — which comes out ahead?

Beach to Bay Relay Marathon and Spurs Austin International Half (fka 3M Half Marathon) Relay split the available advantages, so the better choice depends on which metric matters most to the runner.

Route comparison snapshot

Beach to Bay Relay Marathon

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

Spurs Austin International Half (fka 3M Half Marathon) Relay

Mapped route
Held Favoured
Elevation profile
Held Favoured
course flatness
-2.3%
flat grade share
90.6%
lower ascent
42 m
climbing density
2.0 m/km
net elevation
-101 m
maximum grade
8.1%
Head-to-head comparison
MetricBeach to Bay Relay MarathonSpurs Austin International Half (fka 3M Half Marathon) Relay
Flat grade shareUnavailable90.6%
GAP factor (% slower than flat)Unavailable-2.3%
Uphill shareUnavailable2.0%
Steep-up shareUnavailable0.0%
Downhill shareUnavailable7.4%
Total ascent (m)Unavailable42 m
Climbing density (m/km)Unavailable2.0 m/km
Longest climb length (m)Unavailable1,000 m
Longest climb gain (m)Unavailable11 m
Longest climb average gradeUnavailable1.1%
Total descent (m)Unavailable143 m
Net elevation (m)Unavailable-101 m
Max absolute gradeUnavailable8.1%
Start elevation (m)Unavailable257 m
Finish elevation (m)Unavailable156 m
Scenic score100/10020/100
Conditions13/10084/100

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.

Race facts that change the decision

Race facts comparison
FactBeach to Bay Relay MarathonSpurs Austin International Half (fka 3M Half Marathon) Relay
Schedule

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

Exact race date not confirmed. Event weekend starts 2026-01-18 (legacy event-level date).

LocationCorpus Christi, TexasAustin, Texas
Actual distance42.2 km21.1 km
raceindex.org mapped route heldNot heldHeld
raceindex.org elevation profile heldNot heldHeld
Course typePoint To PointUnavailable
SurfaceMixed: begins on beach sand at Padre Island, then paved roads to the bayfront finishUnavailable
TerrainBeachUnavailable
SceneryCoastal, Island, Countryside, Waterfront, CityCity, Riverside
AtmosphereCommunity, Destination, FestivalBig City, Competitive, Festival
Total ascentUnavailable42 m
Climbing densityUnavailable2.0 m/km
Total descentUnavailable143 m
Net elevationUnavailable-101 m
Max absolute gradeUnavailable8.1%
Flat grade shareUnavailable90.6%
GAP factorUnavailable-2.3%
Cutoff6:00:004:00:00
Entry modelOpenOpen

Schedule

Beach to Bay Relay Marathon

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

Spurs Austin International Half (fka 3M Half Marathon) Relay

Exact race date not confirmed. Event weekend starts 2026-01-18 (legacy event-level date).

Location

Beach to Bay Relay Marathon
Corpus Christi, Texas
Spurs Austin International Half (fka 3M Half Marathon) Relay
Austin, Texas

Actual distance

Beach to Bay Relay Marathon
42.2 km
Spurs Austin International Half (fka 3M Half Marathon) Relay
21.1 km

raceindex.org mapped route held

Beach to Bay Relay Marathon
Not held
Spurs Austin International Half (fka 3M Half Marathon) Relay
Held

raceindex.org elevation profile held

Beach to Bay Relay Marathon
Not held
Spurs Austin International Half (fka 3M Half Marathon) Relay
Held

Course type

Beach to Bay Relay Marathon
Point To Point
Spurs Austin International Half (fka 3M Half Marathon) Relay
Unavailable

Surface

Beach to Bay Relay Marathon
Mixed: begins on beach sand at Padre Island, then paved roads to the bayfront finish
Spurs Austin International Half (fka 3M Half Marathon) Relay
Unavailable

Terrain

Beach to Bay Relay Marathon
Beach
Spurs Austin International Half (fka 3M Half Marathon) Relay
Unavailable

Scenery

Beach to Bay Relay Marathon
Coastal, Island, Countryside, Waterfront, City
Spurs Austin International Half (fka 3M Half Marathon) Relay
City, Riverside

Atmosphere

Beach to Bay Relay Marathon
Community, Destination, Festival
Spurs Austin International Half (fka 3M Half Marathon) Relay
Big City, Competitive, Festival

Total ascent

Beach to Bay Relay Marathon
Unavailable
Spurs Austin International Half (fka 3M Half Marathon) Relay
42 m

Climbing density

Beach to Bay Relay Marathon
Unavailable
Spurs Austin International Half (fka 3M Half Marathon) Relay
2.0 m/km

Total descent

Beach to Bay Relay Marathon
Unavailable
Spurs Austin International Half (fka 3M Half Marathon) Relay
143 m

Net elevation

Beach to Bay Relay Marathon
Unavailable
Spurs Austin International Half (fka 3M Half Marathon) Relay
-101 m

Max absolute grade

Beach to Bay Relay Marathon
Unavailable
Spurs Austin International Half (fka 3M Half Marathon) Relay
8.1%

Flat grade share

Beach to Bay Relay Marathon
Unavailable
Spurs Austin International Half (fka 3M Half Marathon) Relay
90.6%

GAP factor

Beach to Bay Relay Marathon
Unavailable
Spurs Austin International Half (fka 3M Half Marathon) Relay
-2.3%

Cutoff

Beach to Bay Relay Marathon
6:00:00
Spurs Austin International Half (fka 3M Half Marathon) Relay
4:00:00

Entry model

Beach to Bay Relay Marathon
Open
Spurs Austin International Half (fka 3M Half Marathon) Relay
Open

Facts are shown only when they exist in the sourced race record; Not held means no sourced value is held for that race.

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