With a 200+ MMR difference, you should be able to accomplish that. This game easily allows a single player to dominate, get fed, and control the game. The games are then unbalanced in both cases. So the next time I solo queue, I'm in a bracket that I shouldn't be in, I'm basically a Smurf at that point. The only time I'm going up against a silver player is after playing a night with my friends where my MMR gets tanked because we can't win any games.
Minimum 200+ MMR difference as a plat player against a silver. We lose game after game and by the end of the night I'm in low gold. I can usually hold my own in my lane, but everywhere else it's a slaughter. I'm the highest rank of my friends around mid plat. When I'm in a 4 stack we play against diamonds and play players, and even an occasional master.
