|National team||United States|
|Born||December 30, 1991|
|Height||173 cm (5 ft 8 in)|
|Weight||65 kg (143 lb)|
|Strokes||Individual medley, Freestyle, Breaststroke|
|Club||St. Petersburg Aquatics|
|College team||University of Georgia|
High school career
Margalis graduated from Countryside High School, where she was also a club swimmer for St. Petersburg Aquatics. There, she was coached by Fred Lewis. In high school swimming, she was a three-time state champion and held the state record in the 200-yard IM. For four years in a row, Margalis was named her teams’ MVP. Proving her versatility, she also swam the 500-yard free in 2009 in which she also won a state championship. After her performances that season, she was named the 2009-2010 Pinellas County Female Athlete of the Year. That same year, she was named to the National Youth Championship Team.
Margalis won gold in the 4x200-meter freestyle relay as a member of the preliminary team and bronze in the 200-meter individual medley at the 2013 World University Games in Kazan, Russia. Further, she won the gold medal with the U.S. women's 4x200 freestyle relay team at the 2016 Summer Olympics in Rio de Janeiro, Brazil.
- "Melanie Marsalis Bio". Swimswam.com. Retrieved April 10, 2017.
- Eggers, Nikki (March 23, 2014). "Georgia women's swim and dive picks up sixth national championship". Athens Banner-Herald. Morris Communications. Retrieved March 26, 2014.
- McQuade, Alec (August 11, 2016). "UGA swimmers win Gold and Bronze in 4x200m free relay". 11 Alive News. TEGNA. Retrieved August 12, 2016.
- Melanie Margalis at FINA
- Melanie Margalis at Olympics at Sports-Reference.com
- Melanie Margalis at USA Swimming
- Melanie Margalis at the United States Olympic Committee