There are two different privacy options you're able to control: profile visibility and leaderboards.
To update your privacy settings, locate the drop-down menu in the top-right hand corner of your browser by moving your mouse over the down arrow, and then clicking on "Edit your settings". This will take you to your account settings page.
Choose between making your Swim.com profile‘s visibility public, available to connections only, or private.
Enable or disable the visibility of your workouts on pool and club leaderboards.