• Full name Jack Rafe Flaherty
  • Born 10/15/1995 in Burbank, CA
  • Profile Ht.: 6'4" / Wt.: 225 / Bats: R / Throws: R
  • School Harvard-Westlake
  • Debut 09/01/2017
  • Drafted in the 1st round (34th overall) by the St. Louis Cardinals in 2014 (signed for $2,000,000).
    View Draft Report
    Last summer, scouts regarded Flaherty as a better prospect at third base thanks to his gap-to-gap stroke and quality infield actions. But he struck out 12 in his 2014 season debut on the mound and quickly convinced scouts that he is a potential late first-round talent as a pitcher. Flaherty's 6-foot-3, 217-pound frame offers current strength as well as projection, and his arm action is clean and fast, so he figures to add velocity as he matures. He already sits at 88-92 mph and touches 93, and his command and control are advanced for his age. Flaherty has good feel for four pitches, led by a changeup that projects as plus to plus-plus. His 77-80 mph slider can be a swing-and-miss pitch, and he can use his curveball as a get-me-over pitch or occasionally as a chase pitch, because it does have some tightness. Scouts believe the slider has plus potential, giving him a chance for three above-average or better offerings.

Top Rankings

Organization Prospect Rankings

Draft Prospects

Minor League Top Prospects

Top 100 Rankings

Best Tools List

  • Rated Best Control in the St. Louis Cardinals in 2018

Career Transactions

  • RHP Jack Flaherty changed number to 9.
  • RHP Jack Flaherty changed number to 42.
  • Detroit Tigers activated RHP Jack Flaherty.
  • Detroit Tigers signed free agent RHP Jack Flaherty.
  • RHP Jack Flaherty elected free agency.
  • Los Angeles Dodgers activated RHP Jack Flaherty.
  • RHP Jack Flaherty roster status changed by Los Angeles Dodgers.
  • Detroit Tigers traded RHP Jack Flaherty to Los Angeles Dodgers for C Thayron Liranzo and SS Trey Sweeney.
  • RHP Jack Flaherty changed number to 9.
  • Detroit Tigers signed free agent RHP Jack Flaherty.
  • RHP Jack Flaherty elected free agency.
  • Baltimore Orioles activated RHP Jack Flaherty.
  • St. Louis Cardinals traded RHP Jack Flaherty to Baltimore Orioles for 2B César Prieto, LHP Drew Rom and RHP Zack Showalter.
  • St. Louis Cardinals traded RHP Jack Flaherty to Baltimore Orioles for 2B César Prieto, LHP Drew Rom and RHP Zack Showalter.
  • St. Louis Cardinals activated RHP Jack Flaherty from the 60-day injured list.
  • St. Louis Cardinals sent RHP Jack Flaherty on a rehab assignment to Springfield Cardinals.
  • St. Louis Cardinals sent RHP Jack Flaherty on a rehab assignment to Memphis Redbirds.
  • St. Louis Cardinals sent RHP Jack Flaherty on a rehab assignment to Springfield Cardinals.
  • St. Louis Cardinals sent RHP Jack Flaherty on a rehab assignment to Springfield Cardinals.
  • St. Louis Cardinals sent RHP Jack Flaherty on a rehab assignment to Memphis Redbirds.
  • St. Louis Cardinals sent RHP Jack Flaherty on a rehab assignment to Memphis Redbirds.
  • St. Louis Cardinals transferred RHP Jack Flaherty from the 15-day injured list to the 60-day injured list. Right shoulder strain.
  • St. Louis Cardinals placed RHP Jack Flaherty on the 15-day injured list. Right shoulder strain.
  • St. Louis Cardinals activated RHP Jack Flaherty.
  • St. Louis Cardinals sent RHP Jack Flaherty on a rehab assignment to Memphis Redbirds.
  • St. Louis Cardinals sent RHP Jack Flaherty on a rehab assignment to Springfield Cardinals.
  • St. Louis Cardinals transferred RHP Jack Flaherty from the 10-day injured list to the 60-day injured list. Right shoulder discomfort.
  • St. Louis Cardinals placed RHP Jack Flaherty on the 10-day injured list. Right shoulder discomfort.
  • St. Louis Cardinals activated RHP Jack Flaherty from the 10-day injured list.
  • St. Louis Cardinals placed RHP Jack Flaherty on the 10-day injured list. Right shoulder strain.
  • St. Louis Cardinals activated RHP Jack Flaherty.
  • St. Louis Cardinals sent RHP Jack Flaherty on a rehab assignment to Springfield Cardinals.
  • St. Louis Cardinals sent RHP Jack Flaherty on a rehab assignment to Memphis Redbirds.
  • St. Louis Cardinals placed RHP Jack Flaherty on the 60-day injured list. Left oblique.
  • St. Louis Cardinals placed RHP Jack Flaherty on the 10-day injured list. Left oblique.
  • RHP Jack Flaherty changed number to 22.
  • Jack Flaherty changed number to 22.
  • P Jack Flaherty changed number to 42.
  • St. Louis Cardinals recalled RHP Jack Flaherty from Memphis Redbirds.
  • St. Louis Cardinals optioned RHP Jack Flaherty to Memphis Redbirds.
  • St. Louis Cardinals recalled Jack Flaherty from Memphis Redbirds.
  • St. Louis Cardinals optioned RHP Jack Flaherty to Memphis Redbirds.
  • St. Louis Cardinals recalled Jack Flaherty from Memphis Redbirds.
  • St. Louis Cardinals optioned RHP Jack Flaherty to Memphis Redbirds.
  • St. Louis Cardinals selected the contract of Jack Flaherty from Memphis Redbirds.
  • RHP Jack Flaherty assigned to Memphis Redbirds from Springfield Cardinals.
  • RHP Jack Flaherty assigned to Springfield Cardinals from Memphis Redbirds.
  • RHP Jack Flaherty assigned to Memphis Redbirds from Palm Beach Cardinals.
  • St. Louis Cardinals invited non-roster RHP Jack Flaherty to spring training.
  • RHP Jack Flaherty assigned to Palm Beach Cardinals from Peoria Chiefs.
  • RHP Jack Flaherty assigned to St. Louis Cardinals.
  • Peoria Chiefs activated RHP Jack Flaherty from the 7-day disabled list.
  • Peoria Chiefs placed RHP Jack Flaherty on the 7-day disabled list.
  • RHP Jack Flaherty assigned to Peoria Chiefs from GCL Cardinals.
  • RHP Jack Flaherty assigned to GCL Cardinals.
  • St. Louis Cardinals signed RHP Jack Flaherty.

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