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Marathon Calendar near Old Greenwich 2025-2026

Monthly updates for Old Greenwich

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Explore the top marathons near Old Greenwich for 2025-2026! We've gathered 14 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

Heckscher State Park Marathon

5 km Half Marathon Marathon
Mar
29
Su

Mckirdy Micro Race Series

26 mi
May 2026
May
1-3
Fr - Su

Long Island Marathon

5 km 10 km ... 26 mi 36 mi
June 2026
Jun
13
Sa

Zip Code 07662 Marathon

3 mi 13 mi 26 mi
Jun
13-14
Sa - Su

Sri Chinmoy 24-Hour

Backyard Ultra Marathon 12 hr 24 hr
Jun
13-14
Sa - Su

Sri Chinmoy Midnight Marathon

13 mi 26 mi 12 hr 24 hr
Jun
14
Su

Xcelsior Marathon

3 mi 13 mi 26 mi
September 2026
Sep
20
Su

Yonkers Marathon

5 km Half Marathon Marathon
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
November 2026
Nov
7
Sa

Pocantico Hills Marathon

Trail Run Half Marathon Marathon
December 2026
Dec
5
Sa

QDR Get the Money 5K & 10K

13 mi 26 mi
Dec
6
Su

Queens Marathon

13 mi 26 mi