Why don't I see my latest steps on the Leaderboard?

The Challenge statistics will appear once the Challenge has started. To view the in-app Leaderboard page, press the Leaderboard symbol in the lower right corner of the app screen and validate that the Challenge has started. 

Data on the leaderboard is refreshed approximately once every 10 minutes and the local time zone is used.

If the Challenge is ongoing and you still can't see your nickname, please validate that you have paired a tracker to the Challenge app and that you have also transferred the steps from the activity tracker by tapping the top area entitled Tap to sync steps on the Summary page of your app.