IronHorse Marathon

Riceville, IA, USAMay 2, 2026
Register

Race Day Weather

partly-cloudy-day
45°
61° high
Breezy
Dry

Cool start — fast day potential, big temp swing, moderate wind

A cool 45°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 61°F by later miles, so expect fading conditions as the race progresses. Moderate winds around 14 mph may affect pacing on open sections of the course. Moderate humidity at 67% is worth noting for effort level, especially in later miles.

partly-cloudy-night8
partly-cloudy-night8
partly-cloudy-night8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
Pre-raceRace windowPost-race

Pace Calculator

Distance: 26.2mi
0:00:00
HH:MM:SS
Pace
Weather Adj.
Common Goals:

The IronHorse Races include a Full Marathon, Half Marathon, 10K and 5K Run. All are USATF Sanctioned. The Full Marathon, Half Marathon and 5K are USATF Certified. The Full Marathon takes place on the Wapsi-Great Western Line (WGWL) Trail located in Riceville, Iowa and the Shooting Star Trail in Minnesota. The Half Marathon, 10K and 5K take place on the WGWL Trail. The WGWL Trail has a Northern Branch and a Southern Branch. The races take place on the Rails-to-Trails recognized paved and concrete laid Northern Branch. The Iowan WGWL Trail is the first and official interstate trail connecting to Minnesota’s Shooting Star Trail. Source

Area Map

Course Map

FAQ

When is the 2026 IronHorse Marathon?

The 2026 IronHorse Marathon will be held on Saturday May 2, 2026.

Is the IronHorse Marathon a Boston Marathon Qualifier?

Yes, the IronHorse Marathon is an official Boston Marathon qualifier.

What is the time limit for the IronHorse Marathon?

The time limit for the IronHorse Marathon is 6 hours.

Historical Weather

Based on 1 years of data
Avg Temp
52°F
L:44° H:52°
RunScore
9
Conditions
Rain Freq
0%
0 of 1 yrs
Wind7mph
Dew44°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2025
cloudy
44°/52°-
8