How did I even win this?

So I'm playing this match as and the ADC starts complaining that the person in his lane is farming to much and quits.....

So the team though it was a straight up loss form that point.

And well... It should of been. Most of the game they had twice the kills and their gold was massive.

Every time we engaged them we always lost. Hard.

http://matchhistory.euw.leagueoflegends.com/en/#match-details/EUW1/1800491552/212049710?tab=stats

I just don't even know...