Devil After Dark Marathon

Las Vegas, NV, USA · September 4, 2027·
partly-cloudy-day95°→ 86° finish·Light·Dry
3
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Race Day Weather

partly-cloudy-day
95°at start
86° at finish
Light
Dry
Your goal
0:00:00

Hot start, cooling finish

Runners will face a sweltering start at 95°F, dropping to 86°F by the finish. With light winds at 6 mph and low humidity at 18%, hydration is crucial, especially during the first climb from mile 1 to 4. Expect a tailwind from miles 1 to 11, but a headwind from miles 12 to 13 will challenge runners as they descend. Conservative pacing is advised in the heat, particularly early on.

This course climbs 1,230 ft to its high point and back, so we look at it at 2 points, not just the start line. In a typical year, at 9:00/mi, you start at 95° and finish around 8:55 PM in 86°.

Race day forecast available in 303 days
Along your raceStart line only
partly-cloudy-day2
partly-cloudy-day2
partly-cloudy-day3
Start
partly-cloudy-day3
mi 7
partly-cloudy-day4
mi 13
clear-night4
Finish
clear-night4
clear-night4
clear-night4

Pace Calculator

26.2mi
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Race Plan

Get your personalized Devil After Dark Marathon race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

About the Devil After Dark Race: Over the years, one of my favorite times at our Running with the Devil extreme heat race in late June is when the sun sets, and the night air just beckons you to be outside and run! Devil After Dark brings you that magic with a late summer evening run.

Commencing just before sunset, run through Lovell Canyon while enjoying the stunning sunset as day falls into night. Sun is replaced by stars and moonlight lights the way. The omnipresence of the surrounding canyon under the moonlit starry night is magical! Pinion Juniper trees dance in the shadows and the neon lights of Las Vegas are just minutes away. An enchanted late summer evening run.
Source

Race weekend

Saturday, September 4
5:00 PMMarathon (26.2 mi)
5:30 PMHalf Marathon (13.1 mi)6:00 PM10K (6.2 mi)6:00 PM5K (3.1 mi)

FAQ

When is the 2027 Devil After Dark Marathon?

The 2027 Devil After Dark Marathon will be held on Saturday September 4, 2027.

What is the time limit for the Devil After Dark Marathon?

The time limit for the Devil After Dark Marathon is 7 hours.

What will the weather be like for the 2027 Devil After Dark Marathon?

The forecast calls for a high of 96°F and a low of 73°F with a 2% chance of rain.

Historical Weather

Based on 9 years of data
Avg Temp
89°F
L:84° H:93°
RunScore
4
Conditions
Rain Freq
0%
0 of 9 yrs
Wind8mph
Dew34°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-day
83°/93°-
4
2025
clear-day
84°/92°-
3
2024
clear-day
84°/90°-
4
2023
clear-day
86°/95°-
3
2022
clear-day
83°/92°-
4
2021
clear-day
82°/93°-
4
2020
clear-day
86°/97°-
4
2019
clear-day
76°/84°-
5
2018
clear-day
91°/99°-
3