In most darts tournaments, players compete in matches comprising shorts games, or "legs". The object of each leg is for a player to reduce his score from 501 to zero as quickly as possible.

The first to get down to zero wins the individual game, known as a leg ... (getting to zero from a substantial score with your last three darts… 170 being the highest possible) and barmy ...

Teenage sensation Luke Littler hit a nine-darter en route to scoring another Premier League darts nightly win on Thursday, with a 6-4 victory over Michael van Gerwen.