{"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":444371,"fullName":"Jeff Karstens","link":"/api/v1/people/444371","firstName":"Jeffrey","lastName":"Karstens","primaryNumber":"27","birthDate":"1982-09-24","currentAge":43,"birthCity":"San Diego","birthStateProvince":"CA","birthCountry":"USA","height":"6' 3\"","weight":185,"active":false,"primaryPosition":{"code":"1","name":"Pitcher","type":"Pitcher","abbreviation":"P"},"useName":"Jeff","useLastName":"Karstens","middleName":"Wayne","boxscoreName":"Karstens","gender":"M","isPlayer":true,"isVerified":true,"draftYear":2003,"lastPlayedDate":"2012-10-01","mlbDebutDate":"2006-08-22","batSide":{"code":"R","description":"Right"},"pitchHand":{"code":"R","description":"Right"},"nameFirstLast":"Jeff Karstens","nameSlug":"jeff-karstens-444371","firstLastName":"Jeff Karstens","lastFirstName":"Karstens, Jeff","lastInitName":"Karstens, J","initLastName":"J Karstens","fullFMLName":"Jeffrey Wayne Karstens","fullLFMName":"Karstens, Jeffrey Wayne","strikeZoneTop":3.344,"strikeZoneBottom":1.688}]}