I'm about to get 899'd if I win, aren't I?
If you are lucky. Gonna have to play someone ranked well higher than you. Most of the games at the higher 800's are 12-15 points per win.
Probably still two games. At that level it’s tough to get 21 points unless you get matched up with someone way up. I would assume a win against someone between 800 and 950 would still get you points somewhere in the teens.
The last time I was this high I was 885 vs someone just a few points difference and we both got 20. That being said, I have to agree I'm at least two wins away unless I beat someone who's at the top of the leaderboard.
Which ain't happening.
Yeah I think you're gonna need 2 wins as well. A gain of 21 points in 1 game is gonna be tough, but it's possible if you match up against someone who is rated well above 900.