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Triathlon Calendar near Great River 2025-2026

Explore the top triathlons near Great River for 2025-2026! We've gathered 99 exciting races in the area. Check out our detailed list below to find your next local race.

July 2026
Jul
4
Saturday

Independence Day 4 Mile Run/Walk

4 mi
Jul
18
Saturday

Joe Koziarz 5K Run/Walk

5 km
September 2026
Sep
5
Saturday

Hauppauge Fire Department 5K Run/Walk

5 km
Sep
12
Saturday

SFD Run For Heroes 5K Run/Walk

5 km
Sep
19
Saturday

The Great Cow Harbor 10K

10 km
Sep
20
Sunday

Wantagh Warrior 5K

5 km
Sep
26
Saturday

IRONMAN 70.3 New York/Jones Beach

Triathlon
Sep
27
Sunday

Long Island 6 Hour

6 hr
Sep
27
Sunday

Poquott Community Association 5K Run/ Walk

5 km
Sep
27
Sunday

NSRF The Classic Apple Pie 5K

5 km
October 2026
Oct
3
Saturday

Great South Bay Run

3 mi 6 mi 13 mi
Oct
10
Saturday

Cedar Creek Fall Duathlon

Duathlon
Oct
17
Saturday

NSRF Runtoberfest 5K

5 km
Oct
25
Sunday

The Elizabeth Ferris Memorial 5K

5 km
Oct
31
Saturday

NSRF Long Island Turkey Trot 5K

5 km
Oct
31
Saturday

SBFD Engine Company Monster Dash 5K Run/Walk

5 km
November 2026
Nov
1
Sunday

NSRF Fallback Half Marathon & 5K

5 km 13 mi
Nov
7
Saturday

NSRF Suffolk Turkey Trot 5K

5 km
Nov
8
Sunday

Seeds of Hope 5K & 10K

5 km 10 km
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