H.C. Andersen Marathon

Odense, Denmark · September 26, 2027
partly-cloudy-day57°·61° high·Breezy·Dry
7
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Race Day Weather

partly-cloudy-day
57°at start
61° high
Breezy
Dry
Your goal
0:00:00

Mild temps, variable winds

Runners will face a temperature rise from 57°F at the start to 61°F by finish time, accompanied by high humidity at 80%. Winds will shift from tailwinds in the early miles to headwinds in the middle segments, particularly challenging between miles 3-6 and 17-22. It’s advisable to adjust pacing during headwind sections and stay hydrated throughout, especially as humidity may affect performance.

Race day forecast available in 312 days
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Pace Calculator

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Race Plan

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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.

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Weather Splits
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Race Info

The H.C. Andersen Marathon runs through the streets of Odense, Denmark, named for the city's most famous native son. Marathon and half marathon runners start together at Odense Idraetspark and cover a flat loop course twice, finishing on the track inside Odense Atletikstadion. First held in 2000, the race added a half marathon in 2006 and a 10K, "Run the Last 10," in 2017. In 2019 the race was recognized as having the fastest average marathon finishing time in the world, at 3:51:22.

Race weekend

Sunday, September 27
10:00 AMRun the Last 10 (6.2 mi)
Sunday, September 26
10:00 AMHalf Marathon (13.1 mi)
2:15 PMMiniMarathon (2.6 mi)

FAQ

When is the 2027 H.C. Andersen Marathon?

The 2027 H.C. Andersen Marathon will be held on Sunday September 26, 2027.

Is the H.C. Andersen Marathon a Boston Marathon Qualifier?

Yes, the H.C. Andersen Marathon is an official Boston Marathon qualifier.

What is the time limit for the H.C. Andersen Marathon?

The time limit for the H.C. Andersen Marathon is 6 hours.

What will the weather be like for the 2027 H.C. Andersen Marathon?

The forecast calls for a high of 61°F and a low of 50°F with a 8% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 7 years of data
Avg Temp
59°F
L:56° H:61°
RunScore
7
Conditions
Rain Freq
14%
1 of 7 yrs
Wind10mph
Dew51°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
55°/63°-
6
2025
partly-cloudy-day
57°/63°-
7
2024
partly-cloudy-day
51°/57°-
9
2023
clear-day
58°/63°-
7
2021
cloudy
60°/65°-
6
2019
partly-cloudy-day
57°/57°Light
7
2018
partly-cloudy-day
54°/58°-
8