In May 2014, Geltz received a 50-game suspension without pay after testing positive for a drug of abuse for the second time in his career in violation of the Minor League Drug Prevention and Treatment Program.[7] The positive test was a result of recreational marijuana use during the offseason.[8]
Geltz pitched his first full Major League season in 2015. On April 14, Geltz faced four Toronto Blue Jays batters and got four outs for his first Major League win.[9] On April 22 against the Boston Red Sox, Geltz picked up his first save in the Major Leagues.[10] Geltz set a Rays franchise record later in the season by retiring 32 batters in a row. He lost the streak on June 24 by allowing an extra-inning single to Ezequiel Carrera.[11]
Milwaukee Brewers
Geltz was claimed off waivers by the Milwaukee Brewers on November 28, 2016.[12] He was outrighted to the minors on December 3 and elected to become a free agent the following day.[13]
Los Angeles Dodgers
On January 3, 2017, Geltz signed a minor league contract with the Los Angeles Dodgers organization. He was assigned to the Triple-A Oklahoma City Dodgers to begin the season.[14] In 23 games, he was 2–2 with a 2.67 ERA.[15] He elected free agency following the season on November 6.[16]
Philadelphia Phillies
On January 2, 2018, Geltz signed a minor league deal with the Philadelphia Phillies.[citation needed] Before the 2018 season, he was suspended 100 games for his third positive test for a drug of abuse.[17] Geltz was released by the organization on August 15, 2018.[18]