Darts rules: every game explained

What is genuinely fixed are the measurements: the centre of the board (bullseye) hangs 1.73 m above the floor, and the throwing line sits 2.37 m away horizontally. For play itself, 501 with double out is the tournament standard — a leg only ends when the remainder is hit exactly with a double or the bullseye. Everything else (number of legs, sets, who throws first) is set by the organiser.

Three. A turn always consists of three darts, then it is your opponent's go — unless the leg has ended before that. Darts that bounce out or fall from the board count as thrown but score nothing; they are not thrown again.

If you score more than you have left, leave exactly 1, or reach zero without a double, you are bust. The whole turn is void and your remainder goes back to what it was at the start of that turn.