in game before i queue it shows my party mmr is at 2900,
but when the match starts i sit at mmr leader with 3300

post game tally is fine if +25 3325
the in game page where it show the list of my recent games will be 2925 etc.

thought its just a visual glitch but it adds up to 400 difference
i think from those safe to leave ghost matches.

please help me.
if needed.