Norm completed perhaps his best season in , winning five titles including his second career major, at the Tournament of Champions, and also winning PBA Player of the Year honors. He was also the winner of the PBA Player of the Year award in , capturing three titles that year, including his third career major by winning the PBA World Championship. Duke became a member of the USBC Hall of Fame in 2002, and was inducted into the PBA Hall of Fame in January 2009.