Celebrate the season of open water swimming with a 1 mile and 5K swim with our partners at Zone 3! Tackle the 1-mile or a 5K (or both!) between August 1-31 on the Swim.com app.

All current USMS members are welcome to participate in this challenge for FREE. The Zone3 Open Water Challenge can be done in any stroke but must be completed in one recorded workout for both the 1-mile and 5K swim.

By completing the challenge, you'll earn a badge your Swim.com profile, 25% discount from Zone3, and a chance to win one of three $100 gift cards from Zone3! 

Log Results in the Swim.com App

We partnered with Swim.com so you can input your results on their app to benchmark your swims for the future, compare against other swimmers, and join in on the social fun. Swimmers can upload swims using a compatible device (Garmin, Apple Watch, etc.), or they can be manually uploaded, so don’t worry if you don’t have a smartwatch!

Here is how it works:

  1. Link your My USMS account and Swim.com account (this is required as the challenge is a USMS member benefit)
  2. Find and join the challenge on the Swim.com app (here is how)  
  3. Complete your swim
  4. Log it on the Swim.com app
  5. Bask in the glory of your accomplishment, receive your badge on Swim.com, and see where you rank against others :) 

Click the button below on your phone to go right to the event on the Swim.com app to join.

Join the Zone3 Open Water Challenge - 1 Mile

Join the Zone3 Open Water Challenge - 5K


Check Club Finder for a club in your area, find some friends to join you, or complete it on your own with safety support. This challenge can be completed in any open water venue. 

Remember, safety first! Here are safety guidelines for open water workouts and requirements to be covered under USMS insurance.