Series should be best 1 out of 2 up until diamond except for series to new tier should be 3 out of 5
Bronze 5 -> Plat 1 series should be best 1 out of 2 except for tier rankups such as bronze->silver, silver -> gold, etc.. If you get 100 points you have to win 1 out of 2 games. If we you lose 2 games you go back to 75 points. What purpose is there in making it best out of 3 your just adding more games which consumes more time. If you're good enough to hit 100 points at your rank it shouldn't be a big deal going to the next division.