{"copyright":"Copyright 2026 MLB Advanced Media, L.P.  Use of any content on this page acknowledges agreement to the terms posted here http://gdx.mlb.com/components/copyright.txt","people":[{"id":608686,"fullName":"Jack Mayfield","link":"/api/v1/people/608686","firstName":"David","lastName":"Mayfield","primaryNumber":"9","birthDate":"1990-09-30","currentAge":35,"birthCity":"Del Rio","birthStateProvince":"TX","birthCountry":"USA","height":"5' 11\"","weight":190,"active":true,"primaryPosition":{"code":"4","name":"Second Base","type":"Infielder","abbreviation":"2B"},"useName":"Jack","useLastName":"Mayfield","middleName":"Jack","boxscoreName":"Mayfield, J","gender":"M","isPlayer":true,"isVerified":false,"mlbDebutDate":"2019-05-27","batSide":{"code":"R","description":"Right"},"pitchHand":{"code":"R","description":"Right"},"nameFirstLast":"Jack Mayfield","nameSlug":"jack-mayfield-608686","firstLastName":"Jack Mayfield","lastFirstName":"Mayfield, Jack","lastInitName":"Mayfield, J","initLastName":"J Mayfield","fullFMLName":"David Jack Mayfield","fullLFMName":"Mayfield, David Jack","strikeZoneTop":3.29,"strikeZoneBottom":1.57}]}