Armed Services Half Marathon
Race Day Weather
Comfortable temps, big temp swing, moderate wind
Starting at 62°F, heat will be a factor from the gun — go out conservative and stay on top of hydration. Temps will climb significantly to 80°F by later miles, so expect fading conditions as the race progresses. Moderate winds around 14mph may affect pacing on open sections of the course. Moderate humidity at 74% is worth noting for effort level, especially in later miles.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Armed Services Half Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Race Info
The Armed Services Marathon Half Marathon is a USATF-certified out-and-back course that starts and finishes on the track inside the Grand Haven High School football stadium. Nearly all of the route follows paved bike paths, with only a small share on quiet roads. The terrain is mostly flat with a few gentle rolling hills, and the half marathon covers the same course the marathon runs twice. It is a New York City Marathon qualifying course and runs on the Sunday of race weekend.
