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

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

Route comparison snapshot

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%

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%
Head-to-head comparison
MetricRunning with the Devil (Las Vegas) UltramarathonLake Tahoe Marathon Ultramarathon
Flat grade share16.9%46.7%
GAP factor (% slower than flat)2.0%3.1%
Uphill share41.9%25.7%
Steep-up share2.9%9.5%
Downhill share41.2%27.7%
Total ascent (m)839 m1,912 m
Climbing density (m/km)16.8 m/km16.5 m/km
Longest climb length (m)6,680 m2,540 m
Longest climb gain (m)197 m172 m
Longest climb average grade2.9%6.8%
Total descent (m)839 m1,939 m
Net elevation (m)0 m-27 m
Max absolute grade21.6%44.7%
Start elevation (m)1,423 m1,931 m
Finish elevation (m)1,423 m1,904 m
Scenic score100/10093/100
Conditions0/10096/100

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
FactRunning with the Devil (Las Vegas) UltramarathonLake Tahoe Marathon Ultramarathon
Schedule

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

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

LocationLas Vegas, NevadaIncline Village, Nevada
Actual distance50 km115.9 km
raceindex.org mapped route heldHeldHeld
raceindex.org elevation profile heldHeldHeld
Course typeUnavailableLoop
SurfacePaved road (Lovell Canyon Road)Unavailable
TerrainUnavailableBeach
SceneryCountryside, Mountain, Forest, Desert, CanyonCoastal, Lakeside, Mountain, Forest
AtmosphereWilderness, Destination, CompetitiveScenic Tour, Destination, Festival
Total ascent839 m1,912 m
Climbing density16.8 m/km16.5 m/km
Total descent839 m1,939 m
Net elevation0 m-27 m
Max absolute grade21.6%44.7%
Flat grade share16.9%46.7%
GAP factor2.0%3.1%
Cutoff9:00:0018:00:00
Entry modelOpenOpen

Schedule

Running with the Devil (Las Vegas) Ultramarathon

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

Lake Tahoe Marathon Ultramarathon

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

Location

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

Actual distance

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

raceindex.org mapped route held

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

raceindex.org elevation profile held

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

Course type

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

Surface

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

Terrain

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

Scenery

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

Atmosphere

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

Total ascent

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

Climbing density

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

Total descent

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

Net elevation

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

Max absolute grade

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

Flat grade share

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

GAP factor

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

Cutoff

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

Entry model

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

Read the full pages

How figures are calculated →