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Trail Running Calendar near Mountainside 2025-2026

Explore the top trail runs near Mountainside for 2025-2026! We've gathered 183 exciting races in the area. Check out our detailed list below to find your next local race.

September 2025
Sep
27
Saturday

Front Runners New York Cross Country 5K

Trail Run 5 km
Sep
27
Saturday

The Best Races - New York

5 km 10 km 13 mi
Sep
28
Sunday

New Jersey Half Marathon

13 mi
Sep
28
Sunday

INCLUDEnyc 5K Run, Walk, or Roll for Love, Equity and Access

5 km
Sep
28
Sunday

Run For Children's Smile 5K Run/Walk

5 km
October 2025
Oct
4
Saturday

City Challenge Race - Hoboken, NJ

Obstacle Run 3 mi
Oct
4
Saturday

Bay Ridge Half Marathon

13 mi
Oct
4
Saturday

CHCF Bronx Family 5K Run/Walk

5 km
Oct
4
Saturday

East Brooklyn 5K Run/Walk

5 km
Oct
4
Saturday

The Best Races - New York

5 km 10 km 13 mi
Oct
5
Sunday

JC Green Fall Half Marathon

5 km 10 km 13 mi
Oct
5
Sunday

Jersey Shore Half Marathon

2 mi 13 mi
Oct
12
Sunday

The Brooklynite Fall 10k

5 km 10 km
Oct
18
Saturday

NYCRUNS Falling Leaves Half Marathon

13 mi
Oct
19
Sunday

Everybody's 10K at Liberty State Park

10 km
Oct
19
Sunday

Main Street Half Marathon - Hunterdon

4 mi 13 mi
Oct
19
Sunday

The Terri Roemer Paramus Run

5 km 10 km
Oct
25
Saturday

NYCRUNS Haunted Island 10K

10 km
Oct
25
Saturday

SomerStrong 10K

5 km 10 km
Oct
25
Saturday

Sunnyside Post Halloween Mile

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