Ariel Atkins scored 26 points, Elena Delle Donne added 23 and the Washington Mystics won their sixth straight, beating the Dallas Wings 93-80 on Sunday.
The Mystics (20-11) pulled away to a 51-37 halftime lead with a 25-9 run to close the second quarter and extended the advantage to 70-46 on Atkins' 3-pointer with 3:18 left in the third.
The Wings (14-17) rallied to 77-71 on Kayla Thornton's 3-pointer with 7:20 left in the game but got no closer.
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Kristi Toliver added 17 points with a trio of 3s for Washington. Atkins hit all five of her 3-point attempts and Delle Donne was 3 of 5.
Skylar Diggins-Smith had 17 points and Allisha Gray added 12 points and 12 rebounds for Dallas. Azura Stevens had 15 points, and Thornton 14.
Dallas has a one-game lead over Las Vegas (13-18) for the final playoff spot, with each having three games remaining.