Half marathonRoad🇺🇸 Grand Rapids, United States

Grand Rapids Half Marathon

Sunday, 18 October 2026In 7 days · Start 08:00

Official site

The half-distance out-and-back along the Grand River from downtown Grand Rapids, flat and quick.

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Facts checked 11 Oct 2026 against grandrapidsmarathon.com, grandrapidsmarathon.com.

Elevation gain

45 m

Flat · ↓ 45 m

Start altitude

186 m

above sea level, from terrain data

Temp at start

8°C

Peaks around 14°C

Entry fee

Check site

Open entry

Finishers

—

typical year

Course

Out and back

Cut-off: check site

Getting thereFly into GRR (Grand Rapids), about 16 km from the start

Course map

A detailed route is not available for this race yet. The marker shows the race location.

Elevation profile

Flat: about 45 m of climbing and 45 m of descent. A detailed profile isn’t available for this race yet.

Race-day weather

At start

8°C

Peak during race

14°C

Humidity

72%

Chance of rain

16%

Wind

14 km/h

Race day in past years

Historical averages for 18 October ±3 days, 2016–2025, from 08:00 for 5 hours (70 days sampled). Source: Open-Meteo / ERA5.

What time could you run here?Adjust your goal time for this course’s hills and typical race-day weather.Race time calculator →

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<a href="https://irun42.com/race/grand-rapids-half" title="Grand Rapids Half Marathon on iRun42"><img src="https://irun42.com/badge/grand-rapids-half.svg" width="300" height="120" alt="Grand Rapids Half Marathon: course, elevation and race-day weather on iRun42" /></a>