General DiscussionMatchmaking want keep you to 50% winrate

i dont think so m8 http://www.dotabuff.com/players/91585251/scenarios?date=month&hero=&lobby_type=&game_mode=&duration=&metric=all

^ You had one of those periods when you simply cant lose.. You win games that you would usually lose. It happens to all people, from time to time.

i would say Allison is just better then his usual mate/enemy where he plays.

One month
http://www.dotabuff.com/players/52567729/scenarios?date=month&hero=&lobby_type=ranked_matchmaking&game_mode=&duration=&metric=all

3 months

http://www.dotabuff.com/players/52567729/scenarios?date=3month&hero=&lobby_type=ranked_matchmaking&game_mode=&duration=&metric=all

Please explain me how is valve trying to keep me at 50 %

i can teach u boys how to win ranked
pick ta build orchid
http://www.dotabuff.com/matches/870755395
100% winrate

Of course it does.

It doesn't have to succeed though and that's up to you. Deal with it if you can't beat it.

You'll stay at 50% winrate when you skill level is stagnating. If you're undercalibrated/improving you will increase and if you're overcalibrated you will go below 50%.