Norm Duke is an American professional bowler who previously competed on the Professional Bowlers Association (PBA) Tour and now competes on the PBA50 Tour. He has won 40 titles on the PBA Tour, including seven major championships, and another six titles on the PBA50 Tour. A member of both the PBA and USBC Halls of Fame, Duke is one of only three players in history to reach 40 career PBA Tour titles. He has bowled 73 perfect 300 games in PBA competition, including the 16th televised 300 game in PBA Tour history on January 5, 2003. Duke is a member of the Storm pro staff.

Ten-pin bowling is a type of bowling in which a bowler rolls a bowling ball down a wood or synthetic lane toward ten pins positioned evenly in four rows in an equilateral triangle. The objective is to knock down all ten pins on the first roll of the ball, or failing that, on the second roll. People approach modern ten-pin bowling as either a demanding precision sport or as a simple recreational pastime.