Thousand Islands Half Marathon
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Thousand Islands Half Marathon, 10K and 5K
The Thousand Islands event takes place May 15-16, 2026 across Wellesley Island and Alexandria Bay, New York. It combines in-person and virtual options and includes a half marathon, a 10K and a 5K held across two locations: the Lake Course Executive Club House on Wellesley Island and the Thousand Islands Winery in Alexandria Bay.
Course notes describe the half marathon as passing under the Thousand Islands Bridge and running along the St. Lawrence seaway. The 10K route offers views of the St. Lawrence River. The 5K is a road course with a short loop around the vineyard on grass. Saturday races use the Lake Course Executive Club House for start and finish; the Friday 5K uses the Thousand Islands Winery.
Packet pickup is available at the winery on Friday and at the country club on Saturday. Parking is provided at the Lake Course Executive Country Club for Saturday participants and at the Thousand Islands Winery for Friday participants. The event returns to the Lake Course Executive Club House for Saturday races similar to previous recent years and is part of the Get Fit Half Marathon Series.
Included for participants are a custom long sleeve shirt, custom bib, finisher medal, post-race food, hydration stations with water and Gatorade, a digital finisher certificate, porta-johns along the course, and free parking. The race supports the Alexandria Central School Sports Booster Club; donations go directly to that nonprofit and local students assist during the event. Visit the organization's website for the most recent information.
