User blog comment:V0ldek/The biggest mistake of Season 3/@comment-5266525-20130415215814/@comment-8225465-20130416122406

My friend was a really good LoL player. He played a lot of normals and he just kicked asses. But when he came to rankeds lose streak appeared. He hasn't ever dodged a queue on purpose and in his 10 placement matches he ALWAYS have an AFK. He was placed to Bronze IV.

There, for every win he gained 60-70 LP and for every lose he lost 5-10 LP. That was because his hidden ELO (MMR) was bigger than anyone's in Bronze. But still, even earning 2LP for a win you can be carried hard up the ladder, especially when you go through placement matches with sick ammounts of luck.