DALLAS — There were a lot of empty seats at the NCAA Women’s Basketball Tournament regionals.

The NCAA saw its lowest attendance for the regionals in 20 years, and there is no change to the format in sight.

An average of 4,719 fans showed up for the Sweet 16 and Elite Eight games in the four neutral-site venues. That’s down 27 percent from last year and nearly 50 percent from 2014, when the games were played on campus sites.