The 2026 Flagstaff Marathon has concluded.Share your finish

Flagstaff Marathon

Race day
Race day
clear-day56°·72° high·Breezy·Dry
6
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Race Day Weather

clear-day
56°at start
75° high
Breezy
Dry
Your goal
0:00:00

Cool start, warming finish

Runners will face a temperature trend starting at 56°F and climbing to 74°F by the end. Wind will be moderate at 14 mph from the ESE, creating a mix of headwind, tailwind, and crosswind throughout the race. With average humidity at 43%, hydration will be essential, especially in the later laps as temperatures rise. Starting conservatively is advised to manage the heat as it builds.

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clear-day9

Pace Calculator

26.2mi
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Race Plan

Get your personalized Flagstaff 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

Known as the “The Coolest Marathon in Arizona,” The Flagstaff Marathon is a completely off-road course in the Coconino National Forest. At 8,000+ ft. elevation, it is known as one of the most challenging courses in the country, with 1,200 feet of climbing for the half marathon and 2,400 for the full, and composed entirely of single and double track trails. Source

Race weekend

Saturday, October 3
8:00 AMMarathon (26.2 mi)
Half Marathon (13.1 mi)
10K (6.2 mi)

FAQ

When is the 2026 Flagstaff Marathon?

The 2026 Flagstaff Marathon will be held on Saturday October 3, 2026.

What is the time limit for the Flagstaff Marathon?

The time limit for the Flagstaff Marathon is 8 hours.

What will the weather be like for the 2026 Flagstaff Marathon?

The forecast calls for a high of 75°F and a low of 43°F with a 0% chance of rain.

Historical Weather

Based on 18 years of data
Avg Temp
65°F
L:54° H:71°
RunScore
7
Conditions
Rain Freq
11%
2 of 18 yrs
Wind7mph
Dew34°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2025
clear-day
52°/63°-
9
2024
clear-day
59°/80°-
6
2023
clear-day
39°/68°-
9
2022
clear-day
47°/67°-
7
2021
clear-day
49°/64°-
8
2018
partly-cloudy-day
60°/80°-
5
2017
clear-day
55°/68°-
8
2016
clear-day
53°/72°-
8
2015
clear-day
58°/76°-
7
2014
clear-day
66°/72°-
5
2013
partly-cloudy-day
62°/72°-
6
2012
partly-cloudy-day
57°/76°-
7
2011
clear-day
56°/75°-
7
2010
clear-day
58°/72°-
7
2009
clear-day
54°/78°-
7
2008
clear-day
61°/78°Light
7
2007
partly-cloudy-day
55°/70°Light
7
2006
clear-day
40°/52°-
9