Terrible matchmaking ranks

was lvl 14 signing on today (got to it late last night) I play solo since none of my friends enjoy the bs matchmaking system. Anyway, joined a match, got 4v5 slayer on shrine went 18-11 lost by 5 down to lvl 13. Next match another 4v5 (surprise?) ricochet on shrine. Team goes up by 300 2 mins in and I left. My rank then dropped to lvl 4… Anyone else with similar issue?!

Edit: now I know that quitting a game results in a penalty but 9 lvls?!?!? I think that’s a little outrageous