MarShon Brooks led the way with 14 points as the Kings (5-1) routed the Wizards (5-1) 74-62 in the NBA Summer League semifinals on Sunday night in Las Vegas.
Ray McCallum has 11 points, six rebounds and three assists, while Ben McLemore had six points and five rebounds.
Rookie Nik Stauskas chipped in seven points and three rebounds.
Wizards guard Glen Rice Jr. led all scorers with 24 points.
The Kings will face the Rockets in the title game on Monday night.