How does matchmaking work? What algorithm decides that people deserve... things like this Jg+Supp
https://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2755978131/50438128?tab=stats
This Zac who appears to be on a presently 4 game Int Spree: https://matchhistory.na.leagueoflegends.com/en/#match-history/NA/37504126
And this Fiddle that appears to be following the same path: https://matchhistory.na.leagueoflegends.com/en/#match-history/NA/33312468
This is my second Ranked game on this account, I have 100% fresh MMR and I won the 1st placement match... so what manner of mathematical bullshit decided I and the other two decent players on this team deserved these two?