Till the Nexus is down!!!
The craziest match i ever won was a 3v5. I was tryndamere and i played against FED enemies, i was more fed tho, i carried the 3 v 5 and i thought, meh its tryndamere... This game was ranked tho and more intense, i was graves, our darius never connected so it was 4 v5, around lvl 7 pur xin went afk too, i thought it was gg, but me our fiddle and our volibear carried this match went even got the inhibitor turret. Then xin reconnected, it was still bad as he was behind, he kept dying but we still won! We had to face irrelia, vi, caitlyn, akali, and cho!!! All of them very strong champions.
I thought miracles aren't real but this certainly was!!!
The point of this is never quit, do yoir best even if you are down one or even two players , you can win!!! If its ranked don't surrender! Just keep fighting till one nexus is down!!