The Great Cow Harbor 10K Run

03/24/2026

SOLD OUT 🚨The 2026 Great Cow Harbor 10K sold out faster than we ever could have anticipated, and we are grateful for the incredible response.
You may add your name to the waitlist. Participants may be selected from the waitlist through September 1st. If you are selected, your card will be charged automatically.
Also consider our 2K fun run/walk, which is still open for registration.

**Update 3/25: Comments on this post have been turned off but we encourage you to review our FAQs at https://cowharborrace.com/faq/ and for support please visit https://cowharborrace.com/contact/ to get in touch with the right person to help you. **

03/19/2026

🚨Registration for the 2026 Great Cow Harbor 10K is NOW OPEN! 🎉
You can register at https://events.elitefeats.com/26gch
This race will sell out. Register TODAY to guarantee your spot and get the best pricing. The team has been working hard to put a great race together, and we hope to see YOU at the start line on September 19th.

JOIN US on September 19, 2026 for the The Great Cow Harbor 10K Run!

03/18/2026

🐮🔔 Registration for 2026 Great Cow Harbor 10K opens TOMORROW (March 19th) AT NOON! 🐮🔔
TAG YOUR TRAINING PARTNERS AND GET READY TO REGISTER 🏃‍♀️🏃
Sign up early to get the early bird registration price and secure your spot.

Link to register: https://events.elitefeats.com/26gch?utm_source=ig&utm_medium=social&utm_content=link_in_bio&fbclid=PAZnRzaAQnrP1leHRuA2FlbQIxMQBzcnRjBmFwcF9pZA8xMjQwMjQ1NzQyODc0MTQAAactQigMOizTBfwqoyebD6UhFyOa9njqLVH0XM3SUN8-xZY_joeIkIKERtG2xg_aem_-TDHo11YGOObomSvS_ro4w

02/19/2026

Mark your calendars, Northport! 🏃 Registration for the 49th Annual Great Cow Harbor 10K opens March 19th at 12PM. One of Long Island's most iconic races is back — will you be on the start line this September 19th?

01/07/2026

🐮 Did you know? The Cow Harbor 10K turns 50 in 2027! 🎉

The Northport-East Northport Public Library is creating a special exhibit to celebrate five decades of this beloved community tradition, and they need YOUR help!

This is YOUR chance to be part of making our 50th anniversary unforgettable! Your memorabilia could help tell the story of what makes Cow Harbor so special to our community. Help us preserve the history and memories that make this race a Northport tradition.

📞 Contact Kathryn Heaviside at 631-261-6930 or [email protected]

Let's make our 50th the best one yet! 🏃‍♀️🏃‍♂️

is looking for donations of materials from past Cow Harbor Run (10K & 2K) and Cow Harbor Day items for an upcoming exhibit. Shirts, articles, photos, signs, flyers and more will be accepted. Contact Kathryn Heaviside at 631-261-6930 ext 322

12/30/2025

Let's celebrate an amazing year and start 2026 off with a bang! 🎆🎊🎇

We are excited to be co-presenting the Northport Harbor New Year’s Eve Fireworks Display along with the Cow Harbor Day Committee, the Centerport Yacht Club, and the Northport Yacht Club.

🎆 Fireworks begin at 10 PM — the perfect way to celebrate before midnight with family and friends.

Shoutout to additional sponsors, our friends at The Observer as well as Northport Copy, for their support.

🌟 See you at the harbor!

09/26/2025

Got post race blues? The cure is here! Relive the day through this awesome Huntington Matters feature 🗞️

From block parties to blackouts...we've got you.

09/20/2025

HAPPY RACE DAY 🐮🎉 We can’t start our day without thanking the sponsors, supporters, and volunteers who make our race possible ❤️ This race involves support from our ENTIRE community and we are endlessly grateful for the generosity towards our race.
We’ll see you at the start line 🔔 This is going to be an amazing day 🐮❤️

09/16/2025

Bib pickup starts Friday evening, and this year we have a special new addition. We will be hosting a non-perishable food drive to support the Ecumenical Lay Council of Northport-East Northport Food Pantry!
We encourage everyone picking up a bib to bring a food item to support our community. There will be a drop off when you enter the school with the Northport XC T&F Booster Club. Start taking a look around your pantry 👀!

09/14/2025

🏃‍♂️✨ Introducing some of the elite men's field competing in this year's race! ✨🏃‍♂️
We're less than a week away from race day! Be there September 20th as these phenomenal athletes bring their A-game to the streets of Northport.
Don't miss the chance to see these champions in action!

09/13/2025

Important Race Entry Update

Entry Status: If you did not receive an email confirming your registration, that means you were not accepted from the waitlist.

We would love to still have you join us! There are still spots available in the 2k fun run - https://events.elitefeats.com/25gch. You can also come down as a spectator to see a great race and enjoy the race day atmosphere, or better yet, volunteer to help make the day amazing! All volunteers receive a special volunteer shirt. Sign up at the link below.

Thank you for your support. See you in Northport!
The Great Cow Harbor 10K Race Committee

Click here to become a volunteer with The Great Cow Harbor Race