Welterweight world titlist Errol Spence Jr.’s second defense, a first-round knockout of mandatory challenger Carlos Ocampo in a homecoming fight Saturday night at the Ford Center in Frisco, Texas, was quick but averaged 683,000 viewers for Showtime’s live broadcast, according to Nielsen Media Research. The audience peaked at 726,000 for the 3-minute fight. That’s the third biggest average audience and peak audience for a fight on Showtime so far this year behind Deontay Wilder-Luis Ortiz and Adrien Broner-Jessie Vargas. Junior featherweight titlist Danny Roman’s lopsided decision over Moises Flores in the co-feature averaged 478,000 viewers and peaked at 547,000. The Adrian Granados-Javier Fortuna junior welterweight opener, which ended in a fourth-round no decision, averaged 396,000 viewers with a 441,000 peak.