Before the 1952 season, Coleman was signed by the Yankees. He made his big league debut with them about three years later, on August 15, 1955. He went 2–1 in 10 games in his rookie season. In 29 innings of work, he allowed 40 hits and 17 earned runs for a 5.28 ERA. He also walked 16 batters and struck out only 15. He appeared in one game in the 1955 World Series, giving up five hits in one inning of work. He showed great improvement in 1956, lowering his ERA to 3.67. In 29 games, he posted a 3–5 record with 42 walks and 42 strikeouts in 88 innings of work. On February 19, 1957, Coleman was involved in a multi-player trade between the Yankees and Athletics. The Yankees sent Coleman, Milt Graff, Billy Hunter, Mickey McDermott, Tom Morgan and Irv Noren to the Athletics for Art Ditmar, Bobby Shantz, Jack McMahan and Wayne Belardi. As players to be named later, the Yankees sent Jack Urban to the Athletics and the Athletics sent Curt Roberts and Clete Boyer to the Yankees to complete the trade. 1957 was not a good season for Rip Coleman. Overall, he went 0–7 with a 5.93 ERA in 41 innings of work. He walked 25 batters, struck out 15 and allowed 53 hits. He did not appear in the majors in 1958. In 1959, he found his way back into the majors but again did not perform well. Overall, in 32 games, he went 2–10 with a 4.34 ERA in 85 innings of work. On September 6 of that year he was selected off waivers by the Orioles. With them, he allowed no runs in four innings of work. 1960 would end up being Coleman's final season in the majors. He went 0–2 with an 11.25 ERA in five games, which included one start. Although he started a game, he pitched in only four innings total that year, walking five batters and striking out none. In fact, in the game he started, he lasted only 1/3 of an innings. In that time, he allowed two earned runs. Overall, Rip Coleman went 7–25 in his career. Of the 95 games he pitched, 33 of them were starts, three of those starts were complete games and one of those complete games was a shutout. In 247 innings, he saved five games, allowed 287 hits, 144 runs, 126 earned runs, 21 home runs and 124 walks. He struck out 130 batters and his ERA was 4.58. He was a poor hitter, collecting five hits in 69 at-bats for a.072 batting average.
