February 29 | 10am - 2pm

Sleep Late, Cross a Bridge, Get the T-Shirt

The world’s first zero-k started as a joke between friends mocking the grueling 7- Mile Bridge Run. They wanted to cross a bridge and get a t-shirt without waking up early or breaking a sweat, so the Cow Key Channel Bridge Run was born. Measuring about 300-feet long, The Cow Key Channel Bridge is one of the shortest bridges in the Florida Keys. The event has grown into one of the island chains’ most anticipated events, with runners, walkers and watchers from all over the world dressing in cow costumes and competing for Golden Calf Awards. Free rum shots are handed out at the finish line, where the runners form a parade and stroll to a nearby hotel for a bovine infused after-party and award ceremony. Bring your cowbell. This is a true Key West bucket list event.

Our next Zero K is Saturday February 29, 2020!
Register today.  Online Registration ends February 28th.

Cows need time to make shirts for humans, so our 2020 custom design will
only be available for runners who register online by January 25th.

Souvenir race bibs premium shirt &
0.0K sticker just $35!

A portion of proceeds benefit the Monroe County Sheriff's Animal Farm.

Help bid the old Cow Key Bridge farewell!

Wow the judges with your costumes and win a coveted Golden Calf Award.

Presenting Sponsors

Animal Farm

We donate a portion of our proceeds to the Monroe County Sheriff’s Animal Farm. To date we have raised more than $10,000.
If you can’t make the run, consider sending the animals something from their Amazon Wish List or making a direct donation: keysso.net/farm