a split of 53.18. The U.S. team of her, Simone Manuel, Abbey Weitzeil, and Katie Ledecky won silver with an American record time of 3:31.89. She also swam in the 4 x 100-meter medley relay, helping the US team win the gold medal. Her gold in the medley relay was the 1,000th gold medal for the US at the summer Olympics. 2017 On 13 April 2017 Vollmer competed in the Women's 50 Free of the 2017 Arena Pro Swim Series Indy while six months pregnant. She participated in preparation for the 2020 Tokyo Olympics; time and placing was not important to her. She finished 55th in 27.59". She announced by wearing a green TYR techsuit that her second child would be a boy. On July 4, 2017 Vollmer gave birth to their second child Ryker Alexander Grant . 2019 On July 30, 2019, Vollmer announced her retirement from competitive swimming, stating that her last swim would be the 100 meter butterfly at the 2019 Phillips 66 National Swimming Championships in Stanford, California. Life outside swimming Vollmer is an ambassador for the American Heart Association's "Go Red for Women" program. She is married to Andy Grant, a former swimmer for Stanford University. The couple announced they were expecting their first child on October 10, 2014, and she gave birth on March 6, 2015 to baby boy Arlen Jackson Grant. Andy and Dana announced on January 13, 2017, that they are expecting a second child due July 2017. On July 4, 2017, she gave birth to their second son, Ryker Alexander Grant. Personal best times Long course Short course See also List of multiple Olympic gold medalists List of Olympic medalists in swimming (women) List of Pan American Games records in swimming List of United States records in swimming List of University of California, Berkeley alumni List of World Aquatics Championships medalists in swimming (women) List of world records in swimming World record progression 100 metres butterfly World record progression 4 × 100 metres medley relay World record progression 4 × 200 metres freestyle relay References External links 1987 births Living people American female butterfly swimmers American female freestyle swimmers California Golden Bears women's swimmers Florida Gators women's swimmers Medalists at the 2004 Summer Olympics Medalists at the 2012 Summer Olympics Medalists at the 2016 Summer Olympics Medalists at the FINA World Swimming Championships (25 m) Olympic gold medalists for the United