Keeping with the Underdog theme going on over at The Crawfish Boxes, this profile will highlight one of the Astros biggest underdog prospects in recent times, Jack Mayfield. From an undrafted free agent to the pros, Mayfield had quite the rise.
David Jack Mayfield was born and raised in Del Rio, TX where he attended Del Rio H.S. In high school, Mayfield was a three-time first team all-district honoree which included him hitting .481 as a senior. Coming out of High School Perfect Game had Mayfield as the 847th best player in the nation with a note that stated “very interested all around IF”. Mayfield would end up attending the University of Oklahoma.
Mayfield played in 18 games as a freshman hitting just .235 with a .643 OPS. In his sophomore season he played in just 24 games but improved a bit hitting .259 with .702 OPS. Mayfield’s junior year was his best year in college as he slashed .280/.359/.407 with 34 RBI in 66 games. He returned for his senior year and the numbers dropped a bit as he slashed .254/.319/.392. He also pitched 28 games in college with a 2.90 ERA (freshman and sophomore season).
Mayfield would go undrafted in the 2013 draft but was signed by the Astros following the draft. He spent time between Greeneville and Tri-City in 2013 and hit .238 with 645 OPS splitting time between second base and shortstop. Mayfield put together a solid 2014 season as he slashed .282/.341/.440 between A and A+. Mayfield’s numbers continued to get better in 2015 when he slashed .286/.354/.441 with 14 HR, 65 RBI between A+ and AA.
Mayfield would make his way to AAA in 2016 but overall he struggled. He played in just 78 games missing some time due to injury and finished with a .216 BA and .670 OPS. He rebounded in a nice way in 2017 though. Splitting time between AA and AAA again, Mayfield slashed .283/.327/.500 with 28 2B, 20 HR, 67 RBI in 112 games. Mayfield played the entire 2018 season in AAA and had a .782 OPS.
In 2019, Mayfield would put together his best season as a professional. He played in 100 games in AAA and slugged 26 HR with a .916 OPS. He was called up in late May when Aledmys Diaz went on the IL. Mayfield would go back down and then come back up to Houston during September call-ups. He played in 26 games and finished with 5 2B, 2 HR and .497 OPS.
Just making to the high minors he was able to defy the odds. When he was called up, he truly prevailed as an underdog who went undrafted and eventually made his way to the show. Mayfield will be 29 for the 2020 season, if it ever happens, but he should be able to contribute to the Astros as a utility infielder if the opportunity is there.