Why did i loss sr>?(game code-1X4205)

so i was in a game , i got all the gold medals ( gold elms gold Dmg , ect) im a little lost on why i lost sr? in this game 1X4205 …
I mean i was the last one in the game , but how it my fault that my team left? idk , just so weird that They punish ppl who stay in the game .

sincerely iGunner

This is how it should be, even if it’s not fair. This is the politics of the game, nothing can be done about it