Watson broke Dawn Fraser's six-year-old world record in the 200-meter freestyle (long course) on August 19, 1966, with a time of 2:10.5, and held the record for one year.
Lillian Gish | James Watson | Lillian Hellman | Dr. Watson | Albert Watson (photographer) | Albert Watson | Watson | Lillian Russell | Gene Watson | Emma Watson | Thomas J. Watson Research Center | Thomas J. Watson | Bobby Watson | Lillian Nordica | Watson Lake | Shane Watson | Ruth Watson | Russell Watson | Emily Watson | Robert Watson-Watt | Paul Watson | Johnny "Guitar" Watson | James Craig Watson | Ellen Doré Watson | Wylie Watson | Vic Watson | Thomas Watson | Thomas A. Watson | Robert William Seton-Watson | Michael Watson |
She also competed in the 1967 Pan American Games in Winnipeg, where she received a gold medal in the 100-meter freestyle, edging Marion Lay and Lillian Watson in the event final.