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Running Calendar near Wellesley Island 2025-2026

Monthly updates for Wellesley Island

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

Explore the top running races near Wellesley Island for 2025-2026! We've gathered 11 exciting races in the area. Check out our detailed list below to find your next local race.

Half Marathons Marathons Trail Runs Triathlons
January 2026
Jan
4
Su

KRRA - 8km Resolution Run

4 km 8 km
February 2026
Feb
28
Sa

Denfit Winter Soldier

Trail Run 10 km Half Marathon Marathon
May 2026
May
2
Sa

Black River Trail 15K

Trail Run 5 km 10 km 15 km
May
15-16
Fr - Sa

Thousand Islands Half Marathon

5 km 10 km Half Marathon
June 2026
Jun
27-28
Sa - Su

1812 Challenge Weekend

5 km 5 mi 13 mi 18 mi
July 2026
Jul
4
Sa

DENFIT 1776

8 mi 18 mi
Jul
4
Sa

Thousand Island Park 5K

5 km
Jul
19
Su

K-Town

Triathlon
August 2026
Aug
1
Sa

Tibbetts Point Run 10k

5 km 10 km
Aug
9
Su

Thousand Islands Triathlon & Runs

Triathlon 3 km 5 km 10 km
September 2026
Sep
6
Su

Sackets Harbor Marathon & Half Marathon

13 mi 26 mi