She is the former world-record holder in 100 meter backstroke, set on July 28, 2018, in 58.00 at the William Woollett Jr. Aquatics Center in Irvine, CA.

Baker is also the former world-record holder in the 4x100 meter medley relay with Lilly King, Dana Vollmer, and Simone Manuel.

[5] At the 2014 Phillips 66 Nationals, the qualification meet for the 2014 Pan Pacifics, Baker finished second in the 200-meter backstroke and qualified for the team.

[7] Baker also won a gold medal alongside Lilly King, Dana Vollmer, and Simone Manuel as the lead off of the 4x100-meter medley relay.

The team of Baker, Lilly King, Kelsi Worrell, and Simone Manuel broke the 2012 world record of 3:52.05 set by Missy Franklin, Rebecca Soni, Dana Vollmer, and Allison Schmitt.