Jacob deGrom held Baltimore hitless until Colton Cowser's leadoff single in the eighth inning, leading the Texas Rangers over the Orioles 7-0 on Wednesday night.
The right-hander, who turned 37 on June 19, retired his first 18 batters before walking Jackson Holliday on a high and outside full count slider. He walked Ryan O'Hearn with two outs in the seventh, throwing four straight balls after getting ahead 0-2 in the count.
Cowser grounded a single to right on a 1-1 fastball.
DeGrom 8-2 won his fourth straight decision, striking out seven and walking two. A two-time Cy Young Award winner and four-time All-Star, he started 20 of 24 hitters with strikes and threw 59 of 89 pitches for strikes, averaging 98.4 mph with his fastball.
DeGrom has four complete games in 234 starts, pitching a one-hitter for the New York Mets against Philadelphia on July 17, 2016, when pitcher Zach Elfin hit a third-inning single.