Yoshinori Tateyama

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Yoshinori Tateyama
IMG 0415 Yoshinori Tateyama.jpg
Tateyama with the Texas Rangers
Hanshin Tigers – No. 53
Born: (1975-12-26) December 26, 1975 (age 38)
Daitō, Osaka, Japan
Bats: Right Throws: Right
Professional debut
NPB: May 3, 1999 for the Nippon-Ham Fighters
MLB: May 24, 2011 for the Texas Rangers
MLB statistics
(through 2013 season)
Win–Loss record 3–0
Earned run average 5.75
Strikeouts 61
Saves 1

Yoshinori Tateyama (建山 義紀 Tateyama Yoshinori?, born December 26, 1975) is a Japanese professional baseball pitcher.

A sidearm pitcher, Tateyama relies chiefly on a sinking fastball that averages 87–88 mph and a curveball in the low 70s. He also features two other off-speed pitches, a changeup (74–78 mph) and a screwball (68–71 mph), that are used mostly against lefties.[1] The screwball is thrown with a "Vulcan" grip.[2] He is one of only two relief pitchers to have thrown even a single screwball in the 2012 MLB season.[3]

While his strikeout totals were average, he got hitters out with his control (career 2.12 BB/9 in NPB).

On November 30, 2010 Tateyama signed as a free agent with the Texas Rangers.[4] 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.

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 Nippon-Ham Fighters.

He became a free agent on October 30, 2012 when the Rangers declined his 2013 option. He was resigned by Texas on December 20, 2012. He was then released in March 2013. He was traded to the New York Yankees in June 2013.


  1. ^ "Brooks Baseball · Home of the PitchFX Tool - Player Card: Yoshinori Tateyama". Brooks Baseball. Retrieved 27 September 2012. 
  2. ^ Fast, Mike (June 16, 2011). "BP Unfiltered: A New Screwballer". Baseball Prospectus. Retrieved 27 September 2012. 
  3. ^ "PitchFX Leaderboards". Baseball Prospectus. Retrieved 27 September 2012. 
  4. ^ Rangers sign Japanese reliever Yoshinori Tateyama

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