onyx ranking?

can anyone explain how the onyx tier ranking works. i got to 1700ish rating but now it never goes up only goes down for losses. ive played 120 games in swat won 110ish games since then some against champions mostly onyx. is there a glitch or issue. my other playlists work fine. i even teamed everygame with a platinum 1 now hes 1750 onyx and ive been in everygame he has??

¯_(ツ)_/¯

im now at 1597 7 win streak 1597. why carry on playing? can somebody please give me some advice on this.

You keep going top 200 with highest score get Champion rank!

thats not what im asking. i know champion is top 200.

> 2533274867444675;4:
> You keep going top 200 with highest score get Champion rank!

thats not what im asking. i know only 200 people are in champion. im not saying i should be or shouldnt be. im saying my onyx rating is not going up when i win games but every1 elses on my team is. every win. mine 120 games not moved up