Sunday's matchup between the Indiana Fever and Dallas Wings averaged 652,000 viewers on NBA TV.
It was the most-viewed WNBA game of the year on the network and also topped all NBA games from last season.
It was the third WNBA viewership record set on NBA TV in the past eight days, with all games featuring Caitlin Clark.
NBA TV has set a viewership record for WNBA games seven times this season. All games included Clark.