Stats dont mean anything exactly for that reason, wins/losses can be faked and you can just quit games without surrendering
the only thing that should be looked at is total games played, wins and losses dont matter alot
i have over 225 games played, but only 70 wins and 30 losses
meaning that more then 125 games "125%" were never finished, due to crashes desyncs , minidumps, quits.
the system is not trustworthy, only by looking at ones total amount of games played can you really rate someones skill
"ofocurse having 300 games played with 5 wins and 0 losses doesnt help you"