Kelsi Worrell Dahlia has become the butterfly icon of USA Swimming in the last five years. She qualified for the 2016 Rio Olympics in the 100-meter butterfly and won a gold medal in the 4 x 100-meter medley relay. At the NCAA finals in March 2015, she broke the 13-year-old record held by twelve-time Olympic medalist Natalie Coughlin, and became the first woman to break 50 seconds in the event. In March 2016, she improved her record again. As a Louisville Cardinal, Kelsi received in her senior year the Honda Cup as the best female athlete across all collegiate sports.

☆ ISL 2021: Kelsi Dahlia becomes the New World Record Holder for the 100 Butterfly Women.

☆ ISL 2019: Kelsi Dahlia was announced as a member of the Cali Condors ISL team, headed by GM Jason Lezak.

☆ 2019 World Championships: gold medal & world record 400 medley relay silver medal & american record 400 freestyle relay american record 50m butterfly

☆ 2018 Short Course World Championships: three individual medals as well as six relay podium, making her the most decorated athlete of the meet. Won gold in the 100 butterfly, silver in the 200 fly and bronze in the 50 fly. In the 200, she posted an americas record time of 2:01.73. On the relay stage, she earned six gold medals.

☆ 2018 Short Course World Championships: 100 fly silver medal, 4×100 free relay silver, 4×100 medley relay silver

☆ 2017 World Championships: gold medal & world record 400 medley relay gold medal & american record 400 freestyle relay bronze medal 100m butterfly american record 50m butterfly

☆ 2016 Olympic games: gold medal 400 medley relay, 9th individual 100 fly

☆ 2016 Short Course World Championships: four relay gold medals and three individual silver medals

☆ 2015-2016 NCAA Chanpionships: 100y & 200y champion & american record holder first ever female to break the 50 second barrier in 100y butterfly

☆ 2015 Pan American Championships: two gold and one silver medals, 100 fly gold,

☆ 400 medley relay gold, 400 free relay silver;