Can you close the ranked games for not having more wins than losses in normal games? or place a system that when you reach a ratio of 1.2 wins with a minimum of 500 or more wins ranked games are activated.
Because there are many people who have no experience in the game and play ranked games and spoil the experience of the other players and the game lost that should have satisfactory experience.

No.....................
But for repeated trolls, they should get banned from ranked games

If you're seeing brand-new players in your ranked game... That's because your elo's low enough to justify it.

Unlike normal, Ranked isn't an "everyone who grinds long enough wins" situation; some people simply will be better at only 100 wins than many other players will EVER be, no matter HOW many games they play.

Some people will console themselves in thinking that having played more automatically makes them better, but the simple truth is that generally, there's someone out there better than you. (unless you're someone like XJ9 or somesuch)

Last I checked, you had to be level 30 to play ranked. => They have played a decent amount of games, or won very few.

If you are mad at specific people, I suggest this become official: http://na.leagueoflegends.com/board/....php?t=2881286