On Player history for ... window I find useful to have sorting option also for different games. If I check my player's stats there are all games in chronological order: league games, private league games, cup, scrimmages. Although there's also written game type at the end of line I think it's still difficult to read and compare for example player's performances only in league games.
I suggest that you add sorting tab like it is right now for different seasons where you can choose to see only league games. Also choosing only private league games would be nice but that's not so important imho. Choosing to view only league games stats would be very useful, at least it would for me, to get a better overview of player performances in "Real Games".
Hope you understand and approve my wish:)