Some basic rules
Any dart that leaves either of the player’s hands and touches any part of the playing area beyond the hockey (i.e., between the hockey and the dartboard) is considered thrown.
Darts which touch the floor behind or land straddling the hockey are considered dropped and may be picked up and thrown during that player’s turn (a dart bouncing off or falling out of the dartboard cannot be rethrown).
Any dart that bounces back off the board, backer, wall, chalker, or any anything beyond the hockey cannot be caught and rethrown.
