The Chiefs got their mojo back on Sunday.

The Chiefs, taking advantage of a seemingly uninterested Washington team, snapped a three-game losing streak with a 45-10 win at FedExField.

Despite the victory, the Chiefs, 10-3, will have to wait another week to clinch a playoff spot because Miami, 7-6, and Baltimore, 7-6, each won their games. But a win next week at Oakland would clinch a spot no matter what anyone else does.

The victory was the 150th of coach Andy Reid’s career, counting postseason games; and the Chiefs were 4-0 in games against the NFC East, the division he spent 14 seasons with the Philadelphia Eagles.

Washington, 3-10, lost its fifth straight game.

The Chiefs routed Washington by rediscovering the elements that contributed to their 9-0 start and seemed to disappear during the past three weeks.

• They were spectacular on special teams, with Dexter McCluster returning a punt 74 yards among his club-record 177 punt return yards; and Quintin Demps returned a kickoff 95 yards for a touchdown. All in the first half.

• They won the turnover battle, including Derrick Johnson’s interception of a Robert Griffin III pass in the first quarter, setting up a first-quarter touchdown for an insurmountable 17-0 lead.

• The sack attack was back, as the Chiefs, who had just two sacks in the past five games, sacked Griffin six times -- two by Tamba Hali, two by Tyson Jackson and one by Eric Berry and Frank Zombo -- that eventually led to Griffin finishing the game on the bench.

• The running game was devastating as Jamaal Charles ran for a season-best 151 yards and a 7.7-yard average.

• Quarterback Alex Smith’s 14 for 20 for 137 yards and two touchdowns produced a season-best 122.3 passer rating.

The Chiefs scored the first four times they touched the ball -- and once when Washington had it -- and took a ridiculously easy 31-0 lead less than 23 minutes into the game.

After opening the game with a 33-yard field goal by Ryan Succop, the Chiefs’ special teams and defense set up three touchdowns and scored twice for a 38-10 halftime lead.

In fact, the Chiefs only needed to go 79 yards on offense for four touchdowns. And they led 38-10 despite outgaining Washington 166 yards to 159.

McCluster’s punt returning was responsible for three of the four touchdowns, capped by a 74-yard touchdown for a 31-0 lead with 9:45 left in the first half.

And Demps put a punctuation mark on the first half when he bolted 95 yards down the sidelines with a kickoff return after Washington scored its only touchdown of the first half.