UK charts: Max Payne 3 (PS3+X360) pips Diablo III to number one

[Kantor]

VGKing said:

Kantor said:
This has probably been mentioned already, but Chart-Track can't track digital sales very well, and Diablo III certainly sold much more on battle.net than Max Payne 3 did if it was even sold on PSN and XBL.

Do they even track them at all?
I know digital sales aren't account for at all in these weekly charts.

They try, but most services don't release the information. Steam and Battle.net certainly don't.