On the professional circuit, players are allowed to throw darts that are up to 12-inches long.

In darts, there are 3944 different ways of achieving 501 with nine darts, of which 2,296 finish with the Bull’s Eye, 672 end on double 20, 792 on double 18, 56 on double 17, 120 on double 15 and just eight finishing on double 12.