Tateyama with the Texas Rangers in 2013
Born: December 26, 1975|
Daitō, Osaka, Japan
|NPB: May 3, 1999, for the Nippon-Ham Fighters|
|MLB: May 24, 2011, for the Texas Rangers|
|MLB: September 26, 2012, for the Texas Rangers|
|NPB: 2014, for the Hanshin Tigers|
|Earned run average||3.43|
|Earned run average||5.75|
On November 30, 2010, Tateyama signed as a free agent with the Texas Rangers. After starting 2011 in the minor leagues, he was called up to the Rangers on May 23, 2011, and made his major league debut on May 24, 2011. He struck out Carlos Quentin out swinging for his first major league strikeout.
Koji Uehara was his teammate in high school. In that time, Tateyama was an ace pitcher and Uehara was an outfielder. In the 2011–2012 offseason, the Rangers signed Japan's best starting pitcher Yu Darvish to a 5-year deal. Tateyama and Darvish were previously teammates for 5 seasons on the Hokkaido Nippon-Ham Fighters.
He became a free agent on October 30, 2012, when the Rangers declined his 2013 option. He was re-signed by Texas on December 20, 2012. He was then released in March 2013. He was traded to the New York Yankees in June 2013.
In May 2014, the Yankees released Tateyama, and he returned to Japan to sign with the Hanshin Tigers on June 25, 2014. On November 1, 2014, he announced his retirement from professional baseball after making 8 appearances for the Tigers.
After the retirement, he became Japan national baseball team pitching coach at the 2017 Asia Professional Baseball Championship, 2018 exhibition game against Australia, 2018 U-23 Baseball World Cup and 2018 MLB Japan All-Star Series.
A sidearm pitcher, Tateyama relied chiefly on a sinking fastball that averaged 87–88 mph and a curveball in the low 70s. He also featured two other off-speed pitches, a changeup (74–78 mph) and a screwball (68–71 mph), that were used mostly against left-handed batters. The screwball is thrown with a "Vulcan" grip. He was one of only two relief pitchers to have thrown even a single screwball in the 2012 MLB season.
While his strikeout totals were average, he got hitters out with his control (career 2.11 BB/9 in NPB).
- Baer, Bill. (November 30, 2010) Rangers sign Japanese reliever Yoshinori Tateyama. Hardballtalk.nbcsports.com. Retrieved on 2016-10-03.
- Yankees release Yoshinori Tateyama. Nj.com. Retrieved on October 3, 2016.
- 建山義紀選手入団会見 (Tateyama signing press conference). Hanshintigers.jp. Retrieved on October 3, 2016.
- Baseball: Tigers right-hander Tateyama to retire Archived November 1, 2014, at the Wayback Machine.
- Player Profile: Yoshinori Tateyama. hanshintigers.jp Archived November 2, 2014, at the Wayback Machine.
- "「ENEOS アジア プロ野球チャンピオンシップ2017」コーチングスタッフについて". 野球日本代表 侍ジャパン オフィシャルサイト (in Japanese). September 11, 2017. Retrieved September 24, 2018.
- "「ENEOS 侍ジャパンシリーズ2018」日本 vs オーストラリアのコーチングスタッフ・出場選手について". 野球日本代表 侍ジャパン オフィシャルサイト (in Japanese). January 23, 2018. Retrieved September 24, 2018.
- "侍ジャパンU-23代表の監督・コーチが決定 「第2回 WBSC U-23ワールドカップ」に出場". 野球日本代表 侍ジャパン オフィシャルサイト (in Japanese). April 23, 2018. Retrieved September 24, 2018.
- "「2018日米野球」出場選手6名、コーチングスタッフが決定". 野球日本代表 侍ジャパン オフィシャルサイト. August 20, 2018. Retrieved September 24, 2018.
- "Brooks Baseball · Home of the PitchFX Tool – Player Card: Yoshinori Tateyama". Brooks Baseball. Retrieved September 27, 2012.
- Fast, Mike (June 16, 2011). "BP Unfiltered: A New Screwballer". Baseball Prospectus. Retrieved September 27, 2012.
- "PitchFX Leaderboards". Baseball Prospectus. Retrieved September 27, 2012.
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- Career statistics and player information from MLB, or Baseball-Reference, or Baseball-Reference (Minors)
- Nippon Professional Baseball career statistics from JapaneseBaseball.com
- Yoshinori Tateyama, JapaneseBallPlayers.com
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