When you are on MyArena, there are two ways to see your scheduled recordings.
The Dashboard tab of the left panel
In the Dashboard tab, you can see all your upcoming recordings for the next 10 days.
If a recording does not appear there, it means it has not been scheduled.
If you want to know how to schedule a game or practice from MyArena, please refer to this article.
The Scheduling tab of the left panel
In the Scheduling tab, you can see all your upcoming recordings, as well as the recordings from the past 10 days - in the Recent tab of that screen.