Half Marathon · Wellesley Island

Half Marathons in Wellesley Island, NY in May

Every half marathon happening in or near Wellesley Island during May. Sorted by date with deterministic 0–100 scores so you can pick the right one for your goal.

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Half Marathon

Thousand Islands Half Marathon, 10K & 5K

Fri, May 15, 2026

Wellesley Island, New York

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