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Running Calendar near Stony Brook 2025-2026

Monthly updates for Stony Brook

Get new running races (and updates) in your inbox every month.

Explore the top running races near Stony Brook for 2025-2026! We've gathered 122 exciting races in the area. Check out our detailed list below to find your next local race.

Half Marathons Marathons Trail Runs Triathlons
March 2026
Mar
22
Su

NSRF Luck O'The Irish St. Patrick's 5K

5 km
Mar
28
Sa

Savin Rock Marathon

13 mi 26 mi
Mar
28
Sa

Heckscher State Park Marathon

5 km Half Marathon Marathon
Mar
28
Sa

Big Heart 5K

5 km
Mar
28
Sa

Beach Bunny 5K

3 mi
April 2026
Apr
4
Sa

Aspire 10K

10 km
Apr
4
Sa

NSRF The Bunny Trail 5K

Trail Run 5 km
Apr
5
Su

The Mary Ruchalski Foundation 5K & Fun Run

5 km
Apr
11
Sa

Cedar Creek Spring Duathlon

Duathlon
Apr
11
Sa

Run for the Rescue 5K Trail Run/Walk

Trail Run 5 km
Apr
12
Su

Farm & Forest All-Terrain 5K

Trail Run 5 km
Apr
18
Sa

Shore2Shore - East Islip, NY

Trail Run 25 km 50 km
Apr
18
Sa

NSRF It's Our Only Earth Day 5K

5 km
Apr
19
Su

Mini MightyMan Triathlon

Triathlon
Apr
25
Sa

Lake Mohegan Women's Trail Race

Trail Run 5 km 10 km 4 hr
Apr
25
Sa

The Sachem SEPTA Any Pace Race

5 km
Apr
26
Su

Rye Derby YMCA 5K & 5M

5 mi
Apr
26
Su

YMCA 5K Run/Walk In Memory of Marcie Mazzola

5 km
Apr
26
Su

EJ Autism 4 Mile Run/Walk

4 mi
May 2026
May
1-3
Fr - Su

Long Island Marathon

5 km 10 km ... 26 mi 36 mi