|National team||United States|
May 30, 1995|
|Height||1.778 m (5 ft 10.0 in)|
|College team||University of Texas|
She won bronze in the 400-meter individual medley at the 2016 Short Course World Championships. She had originally finished 4th, but was elevated to bronze, along with teammate Ella Eastin being elevated to silver, when Ánh Viên Nguyễn was disqualified from second place.
Cox qualified to swim the 200-meter individual medley at the World Championships after finishing second at the 2017 US Nationals. She went on to win the bronze medal in Budapest with a time of 2:09.71. She also won a gold medal as a prelim swimmer of the 4x200 freestyle relay.
- Pirtle, Krista (2015-07-02). "The long way: Lubbock native Madisyn Cox swimming for USA in Korea | Lubbock Online | Lubbock Avalanche-Journal". Lubbock Online. Retrieved 2016-12-08.
- Alyssa Goard. "Lubbock Native Madisyn Cox Competing in Olympic Swim Trials". Everythinglubbock.com. Retrieved 2016-12-08.
- "Texas Invitational: Madisyn Cox, Longhorns Clock 3 More Records - Swimming World News". Swimmingworldmagazine.com. Retrieved 2016-12-08.
- "Women's swimming and diving team has a hunger for excellence | The Daily Texan". Dailytexanonline.com. Retrieved 2016-12-08.
- "Madisyn Cox earns bronze at FINA Short Course Championships". Hookem.com. Retrieved 2016-12-08.
- "2016 Short Course Worlds: Team USA Leads Day 1 Medal Table". Swimswam.com. Retrieved 2016-12-08.
- "Vietnamese swimming star's DQ erases historic finish - CBC Sports - Aquatics". Cbc.ca. Retrieved 2016-12-08.