Saturday, September 30, 2023 • Bay Shore, NY • Course Map
The waterfront areas of Long Island’s Great South Bay and the Fire Island National Seashore are the setting each October for the Northwell Health Great South Bay Run Half Marathon (formerly Entenmann’s before 2016), which also includes a 10K and 5K races that are both open to runners and walkers.
Starting from the Bay Shore Marina near Islip, a town on the southern shore of Long Island, the race takes participants through much of this beach town’s quaint, cozy downtown streets, including Main Street and past Walker Park and Gardiners County Park.
Along the course, which is largely fast and flat and run entirely along paved city streets, runners also are treated to views of the architectural beauty of homes along the Penataquit peninsula as well as nearby Brightwater’s scenic Cascade Lake and the Brighwaters Canal area.
The out-and-back race takes a zig-zag route through town, alternately taking runners close to the water and then back toward Main Street, and finishes back at the starting line at the Bay Shore Marina.
Participants are limited to three hours on the course, which must re-open after that time due to traffic restrictions. The races begin at 7:30 AM with the half marathon, followed by the 10K at 7:45 AM and the 5K at 8:00 AM. The 5K and 10K races are open to both runners and walkers, while the half marathon is for runners only.
Race Weather & Climate
Nestled along Long Island’s southern shoreline overlooking the Great South Bay, roughly 50 miles east of New York City, Bay Shore typically sees cool to mild weather in September, which has brought record temperatures as low as 38°F (in 1997) and as high as 92°F (in 1998).
On race day (Sept. 30), the average low is 54ºF and the average high is 73ºF.
Past Results
- 2022 Results
- 2021 Great South Bay Half Marathon Results
- 2019 Great South Bay Half Marathon Results
- 2018 Great South Bay Half Marathon Results
- 2017 Great South Bay Half Marathon Results
- 2016 Great South Bay Half Marathon Results
- 2015 Entenmann’s Great South Bay Half Marathon Results
- 2014 Entenmann’s Great South Bay Half Marathon Results
- 2013 Entenmann’s Great South Bay Half Marathon Results
Course Map
See the race route map for the Great South Bay Run Half Marathon, 10K and 5K here.
Starting Time
- 7:30 AM – half marathon
- 7:45 AM – 10K
- 8:00 AM – 5K
Fees
- $65 – $95 for the half marathon
- $50 – $75 for the 10K
- $38 – $55 for the 5K
Registration
To reserve your spot in the 2023 running of New York’s Northwell Health Great South Bay Half Marathon, 10K and 5K, register online at RunSignup.com here.
Official Race Website
https://runsignup.com/Race/NY/BayShore/GreatSouthBayRun
Facebook Conversations
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