Sport: Swimming (1987-90)
A three-time NCAA individual champion and an eleven-time NCAA relay champion, Gjertsen was a member of the NCAA Texas Longhorn Championship teams of 1988, 1989 and 1990. He was elected tri-captain his senior year.
He was a two-time Olympic Gold medalist in 1988 (Seol), and an Olympic Bronze medalist in 1992 (Barcelona). He was also a one-time World Record holder as a member of the United States 4 x 200 freestyle relay.
In his 13th year as Head Coach at Swim Atlanta, Gjertsen has helped over seventy-five athletes continue their swimming careers in Division I, II and III schools. During his tenure at Swim Atlanta he has coached several athletes to top eight finishes at the US Nationals and had several Olympic Trial qualifiers. In the summer of 2004 he coached the US National "rookie of the meet".
Gjertsen and his wife and children reside in McDonough, Georgia a suburb of Atlanta.