Lake Tahoe Marathon Ultramarathon or Running with the Devil (Las Vegas) Ultramarathon — which comes out ahead?

Lake Tahoe Marathon Ultramarathon and Running with the Devil (Las Vegas) Ultramarathon split the available advantages, so the better choice depends on which metric matters most to the runner.

Route comparison snapshot

Lake Tahoe Marathon Ultramarathon

Mapped route
Held
Elevation profile
Held
course flatness
3.1%
flat grade share
46.7% Favoured
lower ascent
1,912 m
climbing density
16.5 m/km
net elevation
-27 m
maximum grade
44.7%

Running with the Devil (Las Vegas) Ultramarathon

Mapped route
Held
Elevation profile
Held
course flatness
2.0% Favoured
flat grade share
16.9%
lower ascent
839 m
climbing density
16.8 m/km
net elevation
0 m
maximum grade
21.6%
Head-to-head comparison
MetricLake Tahoe Marathon UltramarathonRunning with the Devil (Las Vegas) Ultramarathon
Flat grade share46.7%16.9%
GAP factor (% slower than flat)3.1%2.0%
Uphill share25.7%41.9%
Steep-up share9.5%2.9%
Downhill share27.7%41.2%
Total ascent (m)1,912 m839 m
Climbing density (m/km)16.5 m/km16.8 m/km
Longest climb length (m)2,540 m6,680 m
Longest climb gain (m)172 m197 m
Longest climb average grade6.8%2.9%
Total descent (m)1,939 m839 m
Net elevation (m)-27 m0 m
Max absolute grade44.7%21.6%
Start elevation (m)1,931 m1,423 m
Finish elevation (m)1,904 m1,423 m
Scenic score93/100100/100
Conditions96/1000/100

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
FactLake Tahoe Marathon UltramarathonRunning with the Devil (Las Vegas) Ultramarathon
Schedule

Exact race date not confirmed. Event weekend starts 2026-10-16 (legacy event-level date).

Exact race date not confirmed. Event weekend starts 2026-06-27 (legacy event-level date).

LocationIncline Village, NevadaLas Vegas, Nevada
Actual distance115.9 km50 km
raceindex.org mapped route heldHeldHeld
raceindex.org elevation profile heldHeldHeld
Course typeLoopUnavailable
SurfaceUnavailablePaved road (Lovell Canyon Road)
TerrainBeachUnavailable
SceneryCoastal, Lakeside, Mountain, ForestCountryside, Mountain, Forest, Desert, Canyon
AtmosphereScenic Tour, Destination, FestivalWilderness, Destination, Competitive
Total ascent1,912 m839 m
Climbing density16.5 m/km16.8 m/km
Total descent1,939 m839 m
Net elevation-27 m0 m
Max absolute grade44.7%21.6%
Flat grade share46.7%16.9%
GAP factor3.1%2.0%
Cutoff18:00:009:00:00
Entry modelOpenOpen

Schedule

Lake Tahoe Marathon Ultramarathon

Exact race date not confirmed. Event weekend starts 2026-10-16 (legacy event-level date).

Running with the Devil (Las Vegas) Ultramarathon

Exact race date not confirmed. Event weekend starts 2026-06-27 (legacy event-level date).

Location

Lake Tahoe Marathon Ultramarathon
Incline Village, Nevada
Running with the Devil (Las Vegas) Ultramarathon
Las Vegas, Nevada

Actual distance

Lake Tahoe Marathon Ultramarathon
115.9 km
Running with the Devil (Las Vegas) Ultramarathon
50 km

raceindex.org mapped route held

Lake Tahoe Marathon Ultramarathon
Held
Running with the Devil (Las Vegas) Ultramarathon
Held

raceindex.org elevation profile held

Lake Tahoe Marathon Ultramarathon
Held
Running with the Devil (Las Vegas) Ultramarathon
Held

Course type

Lake Tahoe Marathon Ultramarathon
Loop
Running with the Devil (Las Vegas) Ultramarathon
Unavailable

Surface

Lake Tahoe Marathon Ultramarathon
Unavailable
Running with the Devil (Las Vegas) Ultramarathon
Paved road (Lovell Canyon Road)

Terrain

Lake Tahoe Marathon Ultramarathon
Beach
Running with the Devil (Las Vegas) Ultramarathon
Unavailable

Scenery

Lake Tahoe Marathon Ultramarathon
Coastal, Lakeside, Mountain, Forest
Running with the Devil (Las Vegas) Ultramarathon
Countryside, Mountain, Forest, Desert, Canyon

Atmosphere

Lake Tahoe Marathon Ultramarathon
Scenic Tour, Destination, Festival
Running with the Devil (Las Vegas) Ultramarathon
Wilderness, Destination, Competitive

Total ascent

Lake Tahoe Marathon Ultramarathon
1,912 m
Running with the Devil (Las Vegas) Ultramarathon
839 m

Climbing density

Lake Tahoe Marathon Ultramarathon
16.5 m/km
Running with the Devil (Las Vegas) Ultramarathon
16.8 m/km

Total descent

Lake Tahoe Marathon Ultramarathon
1,939 m
Running with the Devil (Las Vegas) Ultramarathon
839 m

Net elevation

Lake Tahoe Marathon Ultramarathon
-27 m
Running with the Devil (Las Vegas) Ultramarathon
0 m

Max absolute grade

Lake Tahoe Marathon Ultramarathon
44.7%
Running with the Devil (Las Vegas) Ultramarathon
21.6%

Flat grade share

Lake Tahoe Marathon Ultramarathon
46.7%
Running with the Devil (Las Vegas) Ultramarathon
16.9%

GAP factor

Lake Tahoe Marathon Ultramarathon
3.1%
Running with the Devil (Las Vegas) Ultramarathon
2.0%

Cutoff

Lake Tahoe Marathon Ultramarathon
18:00:00
Running with the Devil (Las Vegas) Ultramarathon
9:00:00

Entry model

Lake Tahoe Marathon Ultramarathon
Open
Running with the Devil (Las Vegas) Ultramarathon
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, Lake Tahoe Marathon Ultramarathon or Running with the Devil (Las Vegas) Ultramarathon?

Running with the Devil (Las Vegas) Ultramarathon 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 →