Sage Watson made her Olympic debut at Rio 2016 where she advanced to the semifinals of the 400m hurdles and anchored Canada to a fourth place finish in the 4x400m relay. Watson won three medals as the captain of the Canadian team at the 2013 Junior Pan American Championships where she captured gold in the 400m hurdles, silver in the 4x400m relay, and bronze in the 400m. After finishing third in the 400m hurdles at the 2015 Canadian Championships, Watson posted a 10th place finish in the event at the Pan Am Games in Toronto where she also ran the third leg of the 4x400m relay, helping Canada win the bronze medal. She went on to make her IAAF World Championship debut in Beijing, advancing to the semifinals of the 400m hurdles and reaching the final with the 4x400m relay. She broke the 55-second mark in the 400m hurdles in May 2016, recording a personal best time of 54.82 seconds. Watson enjoyed an outstanding freshman season at Florida State University in 2013, where she is studying Business Marketing. She was named a second team All-American at the NCAA Outdoor Championships where she finished 12th in the 400m hurdles. She was runner-up in the 400m hurdles at the ACC Championships and was named ACC Freshman Track Athlete of the Year. After missing nearly all of 2014 with a foot injury, Watson returned to earn second team All-American honours after helping the Seminoles 4x400m relay finish ninth at the 2015 NCAA Indoor Championships.