Each player begins with a score of 501 and they take it in turns to throw three darts. The score that each player gets when it is their turn is subtracted from their 501. The bullseye has a score of 50, the outer ring of the bullseye scores 25, while landing a dart in a double or treble ring will give the player a score that is double or treble of the segment that they landed in. The highest score that a player can get during one throw is 180 and the minimum number of darts that can be used to win a leg is 9. The highest checkout possible is 170, and in order to win a leg, the player has to hit a double.