pitches. Dalkowski pitched a total of 62 innings in 1957, struck out 121 (averaging 18 strikeouts per game), but won only once because he walked 129 and threw 39 wild pitches. Moving to the Northern League in 1958–59, he threw a one-hitter but lost 9–8 on the strength of 17 walks. In 1957–58, Dalkowski either struck out or walked almost three out of every four batters he faced. During the 1960s under Earl Weaver, then the manager for the Orioles' double-A affiliate in Elmira, New York, Dalkowski's game began to show improvement. Weaver had given all of the players an IQ test and discovered that Dalkowski had a lower than normal IQ. Weaver believed that Dalkowski had experienced such difficulty keeping his game under control because he did not have the mental capacity. Weaver kept things simple for Dalkowski, telling him to only throw the fastball and a slider, and to just aim the fastball down the middle of the plate. This allowed Dalkowski to concentrate on just throwing the ball for strikes. Weaver knew that Dalkowski's fastball was practically unhittable no matter where it was in the strike zone, and if Dalkowski missed his target, he might end up throwing it on the corners for a strike anyway. Under Weaver's stewardship, Dalkowski had his best season in 1962, posting personal bests in complete games and earned run average (ERA), and walking less than a batter an inning for the first time in his career. In an extra-inning game, Dalkowski recorded 27 strikeouts (while walking 16 and throwing 283 pitches). Dalkowski was invited to major league spring training in 1963, and the Orioles expected to call him up to the majors. On March 23, Dalkowski was used as a relief pitcher during a game against the New York Yankees. Most sources say that while throwing a slider to Phil Linz, he felt something pop in his left elbow, which turned out to be a severe muscle strain. Some uncertainty over the cause of his injury exists, however, with other sources contending that he damaged his elbow while throwing to first after fielding a bunt from Yankees pitcher Jim Bouton. Either way, his arm never fully recovered. When he returned in 1964, Dalkowski's fastball had dropped to , and midway through the season he was released by the Orioles. He played for two more seasons with the Pittsburgh Pirates and Los