Thousand Islands Half Marathon

MAY
15-16
2026
This two-day running event in New York's Thousand Islands region features a Friday 5K at a winery and Saturday races on Wellesley Island. Participants can run a 10K, half marathon, or take on a multi-race challenge. The courses offer views of the St. Lawrence River and the iconic bridge.
15-16 May 2026
16 miles 13 miles 15 kilometers 6 miles 3 miles

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Event Details

The Thousand Islands Half Marathon, 10K & 5K takes place over two days on Wellesley Island, New York, and in Alexandria Bay. The event includes in-person and virtual race options.

Distances and Schedule

The event offers several race distances and combination challenges:

  • Thousand Islands 5K: Held on Friday evening at the Thousand Islands Winery in Alexandria Bay.
  • Thousand Islands 10K: Held on Saturday on Wellesley Island.
  • Thousand Islands Half Marathon: Held on Saturday on Wellesley Island.
  • Island Double: A challenge combining the Friday 5K and Saturday 10K.
  • Island Super Double: A challenge combining the Friday 5K and Saturday Half Marathon.

Virtual options are also available for the 5K, 10K, and Half Marathon distances.

Course and Location

The Saturday races (10K and Half Marathon) start and finish at the Lake Course Executive Club House on Wellesley Island. The Half Marathon course goes under the Thousand Islands Bridge and along the St. Lawrence Seaway. The 10K course offers views of the St. Lawrence River. The Friday 5K is a road course at the Thousand Islands Winery with a short loop on grass.

Participant Information

Packet pickup is available on Friday at the Thousand Islands Winery and on Saturday morning at the Country Club on Wellesley Island. Free parking is available at both venues.

The event includes a custom long-sleeve shirt, custom bib, finisher medal, post-race food, hydration stations, and digital finisher certificates. The event is part of The Get Fit Half Marathon Series. A portion of the event benefits the Alexandria Central School Sports Booster Club. Visit the organization's website for the most recent information.

16 mi
Island Super Double (5k & 13.1)
13 mi
Thousand Islands Half Marathon
15 km
Island Double (5k & 10k)
6 mi
Thousand Islands 10k
3 mi
Thousand Islands 5k