Milligan is a three-time major winner, capturing the U.S. Women’s Open and Hammer Players Championship titles in 2000 and the USBC Queens in 2005. She also won the 2003 Greater Memphis Open on the women’s pro tour and the 2007 European Women’s Masters.
As a six-time Team USA member, the right-handed Milligan won 22 medals, including nine gold. She won team gold at the 1999 Pan American Games and captured the singles and doubles titles at the 2007 Pan American Games.
She has 20 top-10 finishes in USBC Women’s Championships competition, including Classic Team titles in 2000 and 2003, a Diamond Team title in 2014 and a Diamond Doubles title in 2015.