Matchmaking

They are 3 Plat 5 who may potentialy be GOLD 1 skill level player and got lucky or boosted by their diamond friend or pay to get boosted or bought the account or they have really BAD MMR while you have alot higer and you got matche up with. And your Gold 2 and Gold 3 are maybe Gold 1 skill level players that got a bad losing steak and got demoted. THis isnt that outrageous, I have seen silver 2 get match up vs diamond 5 and plat 1 in Flex. This maybe be look little unfair but is winnable, on paper you are unlikely to win like 40%win vs 60% loss. But THAT matches can be turned around if you stay calm and focus and your team make good calls and dont flame each other and throw it.

i don't see fairness for a long time in League of Legends