The challenge is pretty much self-explanatory as stated in the description. Just play one single-player game within the time-limit. Either check here or on your Xbox One how many days are left to complete it. If it's -FINISHED/EXPIRED-
you're not be able to unlock it anymore.
The challenge will unlock as soon as the match is over and you see the score-screen. You don't need to get a specific score, simply play one match till you're out of balls.Note
: If somehow the challenge won't unlock right away, you probably already met the requirements. This happened to me on the release day. In order to check that, compare the game/achievements with any player on your list and when it says LOCKED (100%)
it is the xbox cloud-servers' fault which they're still trying to fix (ever since) and there is no proper solution to this. So there is no way around it other than to wait till it unlocks itself. Mine unlocked the day after
without any notifications. Also this is no exception, this can happen with any achievement in this game as well as other games on the Xbox One. You have been warned!