[{quoted}](name=Rainbow Slayer,realm=NA,application-id=3ErqAdtq,discussion-id=0P1RoaIE,comment-id=0000000000000000,timestamp=2018-10-08T19:29:05.733+0000)
Umm there are many websites that get pretty close to knowing what a players MMR is. Sure, none of them are perfect but I'm pretty sure when he has a 54% win rate in Gold 3, and he's not on a losing streak, that his MMR isn't Silver 3.
He also was not duo. They had a duo of a Silver 4 ADC and a Silver 3 Support player in Bottom lane. Our team didn't have anyone duo'ing. That's also another huge advantage that their team had over ours.
They are still VERY subjective. I track about 300 players on op.gg ranging from bronze 5 to plat 2 and I've seen a players MMR change by 100 points over 5 days without playing a single ranked match....and the difference in op.gg between the top silver 3 and the bottom gold 3 is......82 points.
The matchmaker will never be perfect. There are way too many unknowns that can't be predicted. I had a silver 2 in a match over the weekend when I'm bronze 5 0 LP. It happens, but the vast majority of games have realistic matchups. Almost all my games are bronze 5 on both sides with an occasional bronze 4. Sometimes someone dominates and sometimes someone feeds.