Nationals 6, Pirates 0
WASHINGTON — Tanner Roark pitched eight-plus innings of five-hit ball and had an RBI single during a three-run fourth for the Nationals. Roark started the ninth but left after allowing a single and hitting a batter. Washington spoiled the return of Pirates starter Gerrit Cole from the 15-day disabled list. Cole allowed five runs — four earned — over four innings. The Nationals have won five straight games while the Pirates have lost three in a row.