How do I update my display name and my profile picture/avatar?

You can update your name, display name and profile picture/avatar in the Profile section of the Settings page on the challenge website.

First, click on the My Account button in the top navigation.

Next, choose Settings from the drop-down menu.

Select Profile.

Finally, update your name and Display Name (this appears to other participants) and your profile picture/avatar. When you're finished, select Update Details.