The Duke-Gonzaga game on CBS drew the best overnight rating in 10 years for a Sunday NCAA Tournament regional final.
The network announced Monday the 9.9 overnight rating.
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The Elite Eight doubleheader, including the Louisville-Michigan State game, averaged an 8.6 overnight rating/18 share, a 10 percent increase from last year.
Through the Elite Eight, the NCAA Tournament is averaging 7.2/15 across TBS, CBS, TNT and truTV. That's an 11 percent boost through the same period last year.
CBS is part of CBS Corp.; TBS, TNT and truTV are divisions of Time Warner Inc.