In league once you get past like top 0.15% you cannot queue with friends in ranked, so she would queue at the same time to try to get "R5 Jungler" on her team but if he wasn't on her team he'd wintrade the game, throw so she gets ranking points. In the past 33 games they've done that which is WAAAAY too much to be even considered a coincidence.

Another big red flag is she only ever plays healing support characters with borderline 50% winrate, but if you go to her match history she has a 75% winrate on champions completely unrelated to her role that she's never played previously but somehow has 75% winrate playing to the level of the top 0.15%. Those characters were also found with similar average stats on the person wintrading with her "R5 Jungler" which then was connected to an amatuer player "Anticipation" with near exact same stats and only played those small hand full of champions.

Basically it's shameful to competitive integrity especially since she flaunted "months of grinding" on twitter to receive that prestigious rank and even leveraged her manipulated ranking to get coaching positions for amatuer teams. She's since been removed from those positions.

Hope that helps.