Riley Trails Marathon

Saturday, August 15, 2026

Holland, Michigan

Race Day

Saturday, August 15, 2026

Course

Loop

Also Offers

10K trail run

Registration

Race Website

Official race information

☀

Avg High

78°F

☽

Avg Low

63°F

☂

Precip

0.27 in

🍃

Wind

11.2 mph

76% humidity·Based on 5-year historical data

APR 4

Pirate 5K, 10K, & 13.1M at Grand Ledge, MI (14)

APR 4

DoNot Stop Half Marathon (5k/10k) - Grand Rapids

APR 11

Martian Invasion of Races

APR 11

Carpe Diem - Carpe Noctem Half Marathon and 10K - MI

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Race Day

Saturday, August 15, 2026

Course

Loop

Also Offers

10K trail run

Registration

Race Website

Official race information