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Jack Mayfield (born September 30, 1990) is an American professional baseball infielder for the Houston Astros of Major League Baseball (MLB). The Astros signed Mayfield as an undrafted free agent in 2013. He debuted in the major leagues in 2019.

Jack Mayfield
Jack Mayfield (35489798104) (cropped).jpg
Mayfield with the Fresno Grizzlies in 2017
Houston Astros – No. 9
Born: (1990-09-30) September 30, 1990 (age 29)
Del Rio, Texas
Bats: Right Throws: Right
MLB debut
May 27, 2019, for the Houston Astros
MLB statistics
(through 2019 season)
Batting average.156
Home runs2
Runs batted in5


Mayfield attended Del Rio High School in Del Rio, Texas.[1] He attended the University of Oklahoma and played college baseball for the Oklahoma Sooners from 2010 through 2013.[2]

The Astros signed Mayfield as an undrafted free agent on June 16, 2013.[3] He split his debut season of 2013 between the Greeneville Astros and the Vermont Lake Monsters. He split 2014 between the Quad Cities River Bandits and the Lancaster JetHawks. He split 2015 between Lancaster and the Corpus Christi Hooks. His 2016 and 2017 seasons were split between Corpus Christi and the Fresno Grizzlies. He spent the entire 2018 season with Fresno. In 2019, he opened the season with the Round Rock Express,[4] hitting .287/.350/.566/.916 with 26 home runs and 79 RBI.

The Astros promoted him to the major leagues on May 27, 2019, and he made his major league debut that day.[5] He hit .156 with 2 home runs and 5 RBI for the Astros in 2019.


  1. ^ Kyle, Brad. "Curse Of The Champions: Astros' Prospect Jack Mayfield Stuck In AAA". The Runner Sports. Retrieved May 27, 2019.
  2. ^ "Jack Mayfield Biography". Oklahoma Sooners. Retrieved May 29, 2019.
  3. ^ McTaggart, Brian (March 3, 2018). "Astros Jack Mayfield enjoying first camp". Retrieved May 27, 2019.
  4. ^ "Houston Purchases Contract of Round Rock INF Jack Mayfield". May 27, 2019. Retrieved May 29, 2019.
  5. ^ Tomlinson, Chris (February 22, 2019). "Jack Mayfield finally gets the call from Astros". Houston Chronicle. Retrieved May 27, 2019.

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