Bowling ball random when impacting a full rack of pins on the first delivery of a frame, and sometimes when hitting downed "dead wood" pins on subsequent deliveries—the candlepin bowling sport is the only major one that allows fallen pins, provided no part of any fallen pin extends more than 24 inches (61 cm) forward of the head-pin spot, to remain on the lane's pindeck to be used in knocking down more pins with the next ball delivery in the same round—up to three balls are delivered, much as in duckpins, in each round of candlepins for one bowler. Bowling ball A
Ten-pin bowling British Tenpin Bowling Association. These rules are followed by all certified leagues and events, such as tournaments. This information is clarified by the World Tenpin Bowling Association in its "Statutes and Playing Rules". The sport of ten-pin bowling is performed on a straight, narrow surface known as a lane. This bowling lane is from the foul line to the head pin (1-pin). About from the foul line are a set of guide arrows. The lane is wide and normally consists of 39 wooden boards (commonly rock maple in the "heads", which is the first 15 feet of lane, and in