The new League system heavily favours luck.

After playing a good 500 ranked matches with the new system, I can only draw one conclusion. The new divisions and tiers are impossible to climb without a fair degree of luck. No, it's not Riot's fault. With the established meta and guides and videos everywhere telling you how to play; it's hard to be outright bad at LoL these days. Sure, there's still plenty of awful players; but compared to a year or two ago everyone has stepped up their game immensely. With the playerbase being marginally better than it used to be, it's much harder to carry a game successfully.

So with everyone playing their roles in at least a half decent capacity, it's much harder to stomp your way up the solo queue ranks. You have to rely on your team being at least half competent, at any rate. For example, yesterday I went 12-3 on Jax at top in 25 minutes. Game over, right? However, we had a Corki and a Thresh who both kept getting caught outside of our base. We never once had a 5v5, because before the fight started these two would get themselves killed. I tried to ward for them, I asked them to play safe- but all I got was insults in return. You can't win them all.

The new divisions place a large reliance on luck to move up for all but the best of players. This isn't Riot's fault. A year ago someone on your team could feed the enemy team 10 kills in the lane and you could kill your opponent in a different lane just as much. However, since everyone is better at the game chances are while you are stuck playing against someone with equal skill, the rest of your teammates are dying repeatedly.

Quite simply, even if you play your best and perform well early game in every single match- it still boils down to your team in the end. That's where the luck comes in. You can't win a teamfight unless your allies do their jobs properly. You can only help influence your team in the right direction. Ultimately, if you want to raise your rating- just keep playing as many games as you can and luck will get you there eventually. So, good luck folks!