WASHINGTON — Jake Arrieta appears to be maturing into the kind of pitcher the Chicago Cubs hope can solidify their rotation weakened by the trade of starters Jeff Samardzija and Jason Hammel.
Though the Cubs lost 2-1 to the Washington Nationals on Sunday, Arrieta followed up two sensational outings with a gritty effort for a suddenly short-handed staff. He allowed one run in six innings of a no-decision.
“It was a dogfight,” Arrieta said. “I really had to grind it out there.”
The 28-year-old pitcher was acquired last year in a trade with the Baltimore Orioles. His performances during the past month suggest he might be shaking the inconsistency that previously plagued him.
He has pitched to a 0.92 ERA in June and took no-hitters through the sixth inning of his previous two starts. Arrieta lowered his ERA to 1.78 while striking out five and allowing four hits and three walks in his first outing in July.
“I think he’s shown all of us and all of you guys that he’s had some really consistent outings,” Cubs manager Rick Renteria said of Arrieta, whose career-low season ERA was 4.66 during his rookie season.
Ryan Zimmerman’s eighth-inning single off Pedro Strop (1-4) drove in the go-ahead run.
Washington took two of three games in the series, including 13-0 on Saturday to break Chicago’s four-game winning streak.
Starlin Castro’s sacrifice fly drove in Chris Coughlan to tie it 1-1 in the seventh after Coughlan pinch-hit for Arrieta and singled.
But an inning later, Denard Span’s hustle turned a soft hit to right field off Strop into a double leading off the eighth. Two outs later, the Cubs intentionally walked Adam LaRoche to bring up Zimmerman, who ripped a single to left that scored Span.
Arrieta dueled Nationals starter Jordan Zimmermann for six innings but trailed 1-0 after a first-inning run.