So long, chances for another Lakers three-peat. Hello, Western Conference finals for Dirk Nowitzki and the Dallas Mavericks. Jason Terry tied an NBA postseason record with nine 3-pointers and the Mavericks matched a league playoff mark with 20 3s on their way to a 122-86 victory over the Lakers on Sunday and a sweep of their second-round series against the most successful coach in NBA history and the two-time defending champions.