Chicago, IL (AHN) - Plenette Pierson scored 15 points to lead the Detroit Shock to a 66-60 victory over the Chicago Sky Friday night.

Swin Cash added 14 points, eight rebounds and six assists for Detroit (22-6), which have won four in a row and 11 of its last 12.

Remarkably, the Shock are 13-2 since star forward Cheryl Ford was lost for the season due to injury.

"We're hungry," Cash said. "Obviously the magic number is three, but for us the magic number is six. You want to play your best basketball going into the postseason and that's what we're really going to try to focus on."

Jia Perkins scored 19 for Chicago (12-16), which have lost three of four.

"I hope that there's a little message sent there that if we do get in the playoffs and get to play [Detroit] again, they're going to have to play [hard]," Sky coach Bo Overton said. "I think we'll be there and I think we'll compete."

In other WNBA action:

Washington 80, New York 68

Alana Beard scored 24 points and Nakia Sanford scored 16 points for the Mystics (11-15).

Washington snapped a two-game losing streak and moved into fifth place in the Eastern Conference.

Janel McCarville scored 15 points and Tiffany Jackson contributed 13 points for the Liberty (11-16), who have dropped eight of nine decisions.

Houston 66, Los Angeles 56

Tina Thompson scored 13 points and hauled in 10 rebounds to pace the Comets (9-18).

Mwadi Mabika registered 10 points and five rebounds for the Sparks (9-17).

Both teams struggled from the field as Los Angeles shot just 28.6 percent while Houston made 32.8 percent of its baskets.

Sacramento 82, Seattle 76

Six players scored in double figures for the Monarchs: Rebekkah Brunson had 14 points; Yolanda Griffith 13; Nicole Powell, Chelsea Newton, and Ticha Penicheiro each 10; and Kara Lawson added 12 points off the bench.