When you're ready to join a public challenge you can press the Join Event button on the event details page. See this article when you want to join a challenge asking you for a verification code.
Step 1: create an account
The first step is to create an account. You can either enter a username and password or connect using one of the available direct integrations to popular fitness platforms.
Already have a sodisp account? Simply login with the same authentication method you used when creating an account to continue with step 2
Step 2: start logging activities
Once you are connected with your event you can start entering activities. You can open the Connections section in your profile to connect your sodisp account with popular GPS devices and apps. Doing this has the benefit of automatically syncing your activities straight from the watch/app into your virtual event with no manual steps in between!
When the event allows, you can also do manual entry of your activities if you don't have (or don't want to use) a GPS watch or app.