You are a moron.
the chart has an x and y axis. On one axis is Duel % and on the other is Duels per 90.
What is shows is that Johnson is involved in less per 90 but wins them at a higher percentage than anyone.
But if he's playing less than 90mins there is missing context. If you come off the bench maybe you play during times of the game when less duels happen. Usually dual happen more earlier in the game before players have been booked and got tired.
Well no, because the stat for duels competed are per 90. Not total per season. So how many games he’s played is irrelevant, it’s how many he does per time on the pitch. The whole point of the per 90 is so it evens out for all players with different time on the pitch.