page_title: 2015 Boston Red Sox season
section_title: May
hierarchical_section_title: 2015 Boston Red Sox season / Regular season / May
caption_attribution_description: Eduardo Rodríguez
context_page_description: The 2015 Boston Red Sox season was the 115th season in the franchise's Major League Baseball history. The Red Sox finished last in the five-team American League East with a record of 78 wins and 84 losses, 15 games behind the Toronto Blue Jays. It was third last-place finish for the team in four years.
context_section_description: May 1–3, vs. New York (AL)
  Game 1: The Red Sox could not give Justin Masterson enough run-support in his 6+-innings, two-runs outing. Allen Craig hit his first home run of the season and Boston fell victim to fan interference in the bottom of the fourth, when a spectator in a Red Sox jacket reached over and deflected a Ryan Hanigan double, which could have scored Xander Bogaerts from first. Hanigan broke his fifth metacarpal bone during the game and was put on the disabled list and top prospect Blake Swihart was called up. Game 2: Wade Miley recovered from his last outing and pitched seven innings, allowing three runs. Dustin Pedroia hit his fifth home run of the season and Blake Swihart had his first major league hit and scored his first run but that was all the offense the Red Sox could muster and fell back to .500 for the first time since April 8. Game 3: Joe Kelly was pulled after 4 2/3 innings and the slide continued for Boston, falling under .500 for the first time this season, when New York scored eight runs before the Red Sox could assemble a five-run bottom of the sixth. Mike Napoli hit his second home run of the season. Dalier Hinojosa made his major league debut, in a hit-less and scoreless outing, despite hitting a batter and giving up three base on balls. With Ryan Hanigan heading to the 60-day disabled list, Boston claimed Luis Jiménez off of waivers from the Brewers and added him to the 25-man roster, sending down Dalier Hinojosa to Pawtucket.
  Red Sox lost the series 0–3 (9–15 runs)
  May 4–6, vs. Tampa Bay 
  Game 1: John Farrell lost a managerial challenge with two outs in the top of the first inning:  a James Loney double was upheld by umpires, allowing the Rays to score two runs in the frame thanks to subsequent hits from Evan Longoria and David DeJesus.  Starter Clay Buchholz then surrendered two more runs in the top of the second as Joey Butler hit a home run with Asdrúbal Cabrera on base.  The Rays tacked on one more run in the seventh.  Boston's lone run of the game came courtesy of back-to-back triples from Brock Holt and Xander Bogaerts.  Tampa Bay starter Jake Odorizzi struck out six batters for the win to continue the Red Sox' May slide. Game 2: Mookie Betts was responsible for all the offense of the game, going deep twice, his first multi-home run game of his career. Rick Porcello pitched seven shutout innings and Koji Uehara earned his fifth save. Game 3: Evan Longoria hit two solo home runs for the Rays and Joey Butler knocked in two runs to take the series for Tampa Bay.  Boston's three RBIs included Blake Swihart's first and Mookie Betts' eighteenth of the year, but Justin Masterson's pitching wasn't good enough to make them stand up. The Red Sox designated Edward Mujica for assignment and relieved pitching coach Juan Nieves of his duties.
  Red Sox lost the series 1–2 (6–10 runs)
  May 8–10, in Toronto
  
  Prior to the series, David Ortiz lost his appeal for a one-game suspension. Game 1: With the bases loaded and nobody out in the top of the fourth, when Aaron Sanchez walked two and hit Allen Craig with a pitch, Boston could not score and were shut out for the first time this season, getting outhit 12 to 2 and outscored by seven. For the last seven games, Boston left 51 runners on base and went 4–52 with runners in scoring position in that same time-span. Matt Barnes replaced Travis Shaw on the active roster and Carl Willis was introduced as the new pitching coach. Game 2: Red Sox pitching allowed eight walks and Toronto took advantage of it. Joe Kelly threw over 60 pitches in the first two innings, loading the bases in both innings but only allowed one run in each. In the bottom of the fourth, Edwin Encarnación drove in two walks with a three-run shot. Dustin Pedroia brought Mookie Betts home on base hit, but that was all the offense the Red Sox had to show for. Game 3: Mike Napoli and Pablo Sandoval both went deep to avoid the sweep. Napoli in the first inning, driving in three, and Sandoval in the fifth, with Hanley Ramírez on base. Clay Buchholz pitched 6 1/3 innings, giving up 3 earned runs on
caption: Eduardo Rodríguez made his major league debut May 28 with a 7 2/3 innings, shutout performance.
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