In order the avoid extra text in the user interface, maybe it would make sense to have it as something that shows up if you hover the pointer over the progress bar. Β Or as an alternative if the xp remaining was shown inside the progress bar that would keep minimalist.
thereβs plenty of room under the progress bar already so no screen space will be lost. maybe show % complete and / or distance remaining / points left inside the white area between the current level indicator and the goal http://zwiftblog.com/wp-content/uploads/2016/07/london-street-rider.jpg