Sunday's WNBA matchup between the Indiana Fever and Phoenix Mercury averaged 1.93 million viewers on ESPN.
It is the fourth most-viewed WNBA game since Memorial Day 2001, and the most-viewed WNBA game of Diana Taurasi's career.
The four most-viewed games have come this season, with each involving Caitlin Clark's Fever.
It was also the tenth game this season to average over a million viewers.
Clark is set to make her WNBA All-Star Game debut on July 20.