Go Bears!
(1) Missy Franklin
For those of you who happen to not be acquainted with Missy Franklin, Franklin has won four Olympic gold medals, one Olympic bronze, three World Championship long course gold medals, one World Championship long course silver medal, one World Championship long course bronze medal, and two World Championship short course silver medals.
Actually, Missy has won far many more international medals than that. The above list is only what she has won before she ever became a Golden Bear.
Missy's career at Cal is equally as illustrious: She has been an individual NCAA champion four times in the 200-yard freestyle in 2014 and 2015, the 200-yard backstroke and individual medley in 2015.