How many wins do I need to get from Silver 2 to Diamond?
60 wins
With a 55% win rate, you need to play 600 games, win 330 of them and lose 270.
With a 60% win rate, you need to play 300 games, win 180 of them and lose 120.
With a 65% win rate, you need to play 200 games, win 130 of them and lose 70.
With a 70% win rate, you need to play 150 games, win 105 of them and lose 45.