only the exceeding wins count, as you get QI even for loses.

you need every match to reset.
if you have played 10 games between 1:10pm-1:30pm you need to wait until the next day 1:30pm to have 10 games available again.
if you have lost 5 of these, you only have 5 wins available at that point.

so to have 100 wins eligible you have to wait for the resets of your matches further than the 100th's you just wont get any QI for those anymore.