O.J. Mayo and the Dallas Mavericks were embarrassed by a blowout loss in Houston. Given a chance to atone for it three nights later, they made the most of the opportunity. Mayo had two big fourth-quarter baskets and a career-high 12 assists, Dirk Nowitzki scored 22 points and the Mavericks hung on to win the quick rematch with the Rockets 112-108 on Wednesday night.