Career
Olympic medallist, and former world record-holder in two events. Nicknamed "Mighty Mouse" partly because of her small stature (standing barely five feet tall) and partly due to her competitive drive, Tanner had a large impact on Canadian swimming and is considered one of the top performers in the sport. Tanner arrived at the 1968 Summer Olympics in Mexico City as a heavy medal favorite.
Suffering from depression, Tanner retired from competition after the 1968 Olympics at just 18 years of age.