HBO and Showtime ran doubleheaders opposite each other Saturday on a night in which they may have divided their audiences and college football was king.

According to Nielsen Media Research, HBO's card from the StubHub Center in Carson, California, averaged 663,000 viewers for the live, first-time airing of the "Boxing After Dark" card.

Making matters worse for HBO, the opening bout drew a larger audience than the main event. That is extremely rare. But the junior welterweight co-feature between up-and-comer Antonio Orozco and former two-division titleholder Humberto Soto averaged 698,000 viewers, peaking at 798,000, for Orozco's hard-fought decision win.

The main event, in which Viktor Postol knocked out Lucas Matthysse in the 10th round of an upset to win a vacant junior welterweight world title, averaged 642,000 viewers, although it peaked at 814,000.

Over on Showtime, the "Showtime Championship Boxing" card from the U.S. Bank Arena in Cincinnati, which began 15 minutes earlier than HBO's telecast, averaged 400,000 viewers.

Junior lightweight titlist Jose Pedraza's disputed split-decision win against Edner Cherry averaged 338,000 viewers and peaked at 514,000.

The main event, in which Adrien Broner, the biggest name fighting on the night, knocked out Khabib Allakhverdiev to win a vacant junior welterweight belt, averaged 506,000 viewers and peaked at 609,000.

But the night belonged to college football, with the ABC broadcast of Notre Dame-Clemson averaging 7.6 million viewers.