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Marathon 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 marathons near Stony Brook for 2025-2026! We've gathered 6 exciting races in the area. Check out our detailed list below to find your next local race.

January 2026
Jan
24
Sa

Icebreaker Marathon

5 km Half Marathon Marathon
March 2026
Mar
28
Sa

Savin Rock Marathon

13 mi 26 mi
Mar
28
Sa

Heckscher State Park Marathon

5 km Half Marathon Marathon
May 2026
May
1-3
Fr - Su

Long Island Marathon

5 km 10 km ... 26 mi 36 mi
October 2026
Oct
3-4
Sa - Su

Forbidden Forest 30 Hour Ultra Run

Backyard Ultra 26 mi 50 km ... 100 km 100 mi
Oct
17-27
Sa - Tu

Suffolk County Marathon

Trail Run 5 km 10 km 13 mi 26 mi