(born March 8, 1984) is a Japanese professional baseball pitcher for the Orix Buffaloes of Nippon Professional Baseball (NPB). He has previously played in Major League Baseball (MLB) for the Arizona Diamondbacks and Seattle Mariners.
Hirano is a right-handed pitcher with a three-quarters delivery. As a reliever, he throws a fastball topping out at mid-90s and a forkball as his primary pitches.
The Orix Buffaloes selected him with the first overall selection in the 2005 Nippon Professional Baseball draft. Hirano made his professional debut in 2006, pitching innings of 3.81 ERA ball. The next year, Hirano logged an 8-13 record and 3.72 ERA in 27 appearances with the team. In 2008, Hirano did not make an appearance with the major club, pitching in 6 games for Orix's minor league club. He returned to Orix in 2009, pitching to a 3âÂÂ12 record and 4.72 ERA in 20 appearances. In 2010, Hirano improved on his performance from the previous year, recording a stellar 7âÂÂ2 record and 1.67 ERA with 101 strikeouts in innings of work. He continued his success in 2011, logging a 6âÂÂ2 record and 1.94 ERA in innings of work. He also won NPBâÂÂs best middle reliever award in 2011. His fine work continued in 2012, with an ERA of 2.15 paired with a record of 7âÂÂ4 in 70 appearances. Hirano carried his success into 2013 as well, pitching to a 1.87 ERA with 71 strikeouts in innings pitched for Orix. He was not as successful in 2014, but still had a solid year, registering a 3.43 ERA with 70 strikeouts in innings pitched. Hirano also led the Pacific League in 2014 in saves, with 40. In 2015, Hirano posted a 3.82 ERA with 43 strikeouts in 33 innings across 33 appearances for the team. In 2016, Hirano had a strong year, posting a 4âÂÂ4 record and 1.92 ERA in 58 appearances for Orix. During the 2017 season, his last before signing with a Major League Baseball team, the right-handed Hirano saved 29 games and pitched to a 2.67 ERA with 47 strikeouts in innings.
Hirano pitched 12 seasons of professional ball in Japan with Orix. He became a full-time reliever in 2010 and was the Buffaloes closer from 2012âÂÂ2017. In his time with the Buffaloes, he recorded a total of 156 saves.
On December 22, 2017, Hirano agreed to a two-year, $6 million contract with the Arizona Diamondbacks. In his first season with Arizona, Hirano finished with a record of 4âÂÂ3 with a 2.44 ERA in 75 appearances. He collected 3 saves in innings. In 2019, Hirano could not replicate his success, posting a less appealing 5-5 record and 4.75 ERA across 62 contests.
Hirano agreed to a one-year, $1.6M contract with the Seattle Mariners on January 30, 2020. On July 14, Hirano mentioned that he had tested positive for COVID-19. On August 22, he made his Mariners debut. In 13 appearances for the Mariners, Hirano pitched to a 5.84 ERA with 11 strikeouts in innings pitched. On October 28, Hirano became a free agent.
On February 6, 2021, Hirano signed a one-year, $1.4MM contract to return to the Orix Buffaloes of Nippon Professional Baseball, the team with which he had begun his career and pitched for from 2005 to 2017.
On October 2, 2023, he recorded his 250th save combined between his time in Japan and the USA. He became the 4th pitcher to reach over 250 saves, after Hitoki Iwase, Shingo Takatsu and Kazuhiro Sasaki.
Hirano played for the Japanese National Team at the 2017 World Baseball Classic. After advancing to the championship round, Japan lost to the United States 2âÂÂ1 in the semifinal, finishing the tournament in third place. Hirano earned a bronze medal for his performance in the games.