In 23 days · Sat, Oct 3, 2026
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Saturday, October 3rd, 2026
142 S Clinton Ave, Bay Shore NY
Half · 10K · 5K
59–68°F · some rain risk
See last 10 years
On this date: rain 3 of the last 10 years
2025
51–66°F
dry
2024
56–68°F
dry
2023
56–73°F
dry
2022
50–55°F
rain
2021
61–72°F
dry
2020
53–65°F
dry
2019
55–66°F
rain
2018
65–75°F
rain
2017
58–64°F
dry
2016
61–70°F
dry
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About this race
THE NORTHWELL HEALTH GREAT SOUTH BAY RUN - SATURDAY OCTOBER 3rd, 2026.
Celebrate 41 years of running on Long Island at the Northwell Health Great South Bay Run!
RACE LOCATION
Starting and finishing at beautiful Bay Shore Marina Park, this Long Island tradition offers three USATF-certified courses, giving runners of all abilities the chance to be part of an AWESOME race day.
COURSES OFFERED
- HALF MARATHON: 13.1 Miles
- 10K RUN: 6.2 Miles
- 5K FAMILY FUN RUN: 3.1 Miles
COURSE DETAILS
Each course takes runners through the heart of historic downtown Bay Shore, past beautiful residential neighborhoods, and alongside some of the area’s most scenic landmarks, including the Brightwaters Lakes, Cascades, and Canals.
FINISH LINE EXPERIENCE
Then get ready for an incredible finish back at Bay Shore Marina with sweeping, unobstructed views of Fire Island and the Great South Bay.
WHO SHOULD JOIN
Whether you're chasing a Half Marathon PR, racing the 10K, running your first 5K, or enjoying the day with family and friends, the Great South Bay Run delivers an unforgettable Long Island race experience.
EVENT SUMMARY
THREE DISTANCES. ONE GREAT RACE DAY.
MORE INFORMATION
For additional details, visit the official race page: Great South Bay Run.
Course map
Hotels for race weekend
Live prices near the start line, Oct 2 – 4, 2026.
Train with a club
Run clubs near Bay Shore to train with before race day.
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