Northwell Health Great South Bay Run
⚠️ 2027 edition: provisional information
The date is estimated from the 2026 edition (October 3, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.
Available distances
About
The Northwell Health Great South Bay Run is held in Bay Shore, near Brentwood, New York, on October 2, 2027, with three USATF-certified courses: a half marathon (13.1 miles / 21.1 km) and a challenging 10K run/walk (6.2 miles) at 7:30 a.m., and a faster 5K run/walk at 7:45 a.m.
Every distance starts and finishes at Bay Shore Marina Park and follows scenic routes through historic downtown Bay Shore. Runners pass handsome residential neighborhoods near the Brightwaters lakes, along with waterfalls and canals, before finishing with open views of Fire Island and the Great South Bay. Blending town and nature, the course highlights the area's architectural heritage in a peaceful waterfront setting, with a well-practiced local organization supporting runners of every level along the way.
Highlights
- Seaside
- City
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Races nearby
Other upcoming races around Brentwood.
Jingle All The Way 5k - Seaford
Dec 13, 2026 · Levittown, NY · 13 mi away
3.1 mi · 0.6 mi
Three Village Turkey Trot 5K
Nov 21, 2026 · East Setauket, NY · 16 mi away
3.1 mi
Nassau County Turkey T RO T
Nov 8, 2026 · Levittown, NY · 16 mi away
3.1 mi · 0.6 mi
Hempstead Turkey Trot 5K
Nov 21, 2026 · Hempstead, NY · 19 mi away
0.6 mi · 3.1 mi
Colony Grill 'Hot Oil' 5K
Nov 8, 2026 · Fairfield, CT · 29 mi away
3.1 mi
Village of Mamaroneck Turkey Trot
Nov 22, 2026 · Mamaroneck, NY · 30 mi away
1 mi · 3.1 mi