Jack Flaherty
Jack Flaherty pitching for the St. Louis Cardinals in 2018 (Cropped).jpg
Flaherty with the St. Louis Cardinals in 2018
St. Louis Cardinals – No. 22
Born: (1995-10-15) October 15, 1995 (age 26)
Burbank, California
Bats: Right
Throws: Right
MLB debut
September 1, 2017, for the St. Louis Cardinals
MLB statistics
(through September 5, 2022)
Win–loss record32–25
Earned run average3.36
Career highlights and awards

Jack Rafe Flaherty (born October 15, 1995) is an American professional baseball pitcher for the St. Louis Cardinals of Major League Baseball (MLB). Selected by the Cardinals in the first round of the 2014 MLB draft, he made his MLB debut in 2017.

Amateur career

Flaherty attended Harvard-Westlake School in Los Angeles, California, where his pitching coach was current White Sox pitching coach Ethan Katz.[1] He pitched and played shortstop and third base as a member of the varsity baseball team for all four of his years at Harvard-Westlake. He was a sophomore when two of his high school teammates and fellow pitchers, Max Fried and Lucas Giolito, were both drafted in the first round of the 2012 MLB draft. In 2013, as a junior, Flaherty pitched a 13–0 record with a 0.63 ERA, striking out 112 batters in 89 innings while only walking 10.[2] During his senior season, Harvard-Westlake was the consensus #1 team in the nation in the MaxPreps "XCellent 50" for much of the beginning of the season, before dropping out of the rankings altogether.[3]

On April 29, 2014, Flaherty pitched a complete game, a 2–1 victory over Bishop Alemany High School, to bring a two-year win–loss record to 20–0.[4] In his last two seasons, his record was 23–0 overall.[5] He finished the 2014 regular season with an 0.63 ERA and a 10–0 record on his way to being named Southern Section Division I Player of the Year along with the Los Angeles Times Player of the Year.[6] He pitched 78 innings (IP), struck out 125 (SO) batters while giving up just 32 hits and 12 bases on balls (BB).[7] In the first game of the playoffs – which was also the last game of his high school career – he threw a no-hitter against Riverside North. He was subsequently named the 2014 Gatorade Player of the Year in baseball for the state of California.[8][9] The Los Angeles Times selected him as their baseball player of the year. In his four years on the mound, his record was 35–3.[9]

Professional career

Minor league career

Although Flaherty signed a letter of intent to attend the University of North Carolina,[10] he began his professional career after the Cardinals drafted him in the first round with the 34th overall selection of the 2014 MLB draft. It was a compensatory pick that the Cardinals gained when Carlos Beltrán signed with the New York Yankees as a free agent.[11] Flaherty signed with the Cardinals on June 17 for a $2 million bonus[12] and began his minor league career with the Cardinals of the Gulf Coast League, where he posted a 1.59 ERA in 22.2 innings pitched. In 2015 he played for the Peoria Chiefs where he was 9-3 with a 2.84 ERA in 18 starts. Prior to the 2016 season, Baseball America ranked him as the third-best prospect in the Cardinals' system.[13] He spent the season with the Palm Beach Cardinals. In their updated 2016 mid-season ranking, Baseball America rated Flaherty in the top-100 for the first time, at 88th.[14] In 24 games (23 starts) at Palm Beach, Flaherty was 5-9 with a 3.56 ERA.

Flaherty began the 2017 season with the Springfield Cardinals, and after posting a 7–2 record with a 1.42 ERA in ten starts, he was promoted to the Memphis Redbirds, where he was 7-2 with a 2.74 ERA in 15 starts. Combined, Flaherty struck out 147 and walked 35 in 14823 innings.[15]

St. Louis Cardinals (2017–present)


On September 1, 2017, Flaherty was promoted to MLB to make his MLB debut against the San Francisco Giants.[16] He pitched four innings, gave up five runs, and struck out six while not receiving a decision in an eventual 11–6 win.[17] He struck out the first batter he faced, Denard Span. Flaherty finished the season 0–2 with a 6.33 ERA in 21+13 innings pitched. After the season, the Cardinals named Flaherty their 2017 Minor League Pitcher of the Year.[18]


Flaherty with the Memphis Redbirds in 2018
Flaherty with the Memphis Redbirds in 2018

On March 25, 2018, the Cardinals announced that Flaherty had made the Opening Day roster in place of the injured Adam Wainwright.[19] He was optioned back to Memphis on April 4 once Wainwright was activated. He was recalled and optioned back once more before taking Wainwright's spot in the rotation in May when he was placed on the 60-day disabled list.

Flaherty earned his first MLB win on May 20, 2018. Throwing 120 pitches, he gave up one earned run, struck out 13, walked one, and gave up only two hits in a 5–1 win over the Philadelphia Phillies at Busch Stadium.[20] Flaherty finished his 2018 rookie year with an 8-9 record and a 3.34 ERA in 28 starts, striking out 182 batters in 151 innings pitched.[21]


Upon the Cardinals signing Matt Wieters, Flaherty switched his uniform number from 32 to 22 to accommodate the Wieters signing. Flaherty entered the second half of the season with an ERA of 4.64.[22] Following the All-Star break, he yielded a 0.91 ERA, the third-lowest in major league history, behind only Bob Gibson and Jake Arrieta.[23][24] Flaherty was named the National League Pitcher of the Month for August after going 5-1 with a 0.71 ERA,[25] and he again won the award in September with a 0.82 ERA over 44 innings.[26] He ended the 2019 regular season with an 11-8 record and a 2.75 ERA over 33 starts, striking out 231 over 19613 innings.[27] He became the third-youngest pitcher in baseball history to strike out at least 230 and walk 55 or fewer with a 2.75 ERA or lower.[28] Following the season, he was nominated for his first ever Gold Glove and finished fourth in National League Cy Young Award voting.[29][30] He was also named to the second All-MLB Team that year.[31]


Flaherty made his first Opening Day start to open the 2020 season.[32] Over the shortened season, Flaherty started nine games in which he went 4-3 with a 4.91 ERA and 49 strikeouts over 4013 innings.[33]


Prior to the 2021 season, Flaherty won his salary arbitration case against the Cardinals, and he made $3.9 million as opposed to the Cardinals submitted salary of $3 million.[34] He made his second consecutive Opening Day start.[35] On May 8, 2021, Flaherty hit his first career home run off of Colorado Rockies starter and former teammate Austin Gomber.[36] On May 31, 2021, Flaherty was placed on the injured list for the first time in his MLB career after suffering an oblique strain while batting.[37] He returned to the club on August 13, but was placed on the injured list once again on August 25 with a right shoulder strain.[38][39] He was activated September 24.[40]

For the 2021 season, Flaherty appeared in 17 games (making 15 starts), going 9-2 with a 3.22 ERA, 85 strikeouts, and 26 walks over 78+13 innings.[41]


Flaherty entered 2022 dealing with a right shoulder injury that sidelined him during spring training and the beginning of the season.[42] On March 22, Flaherty signed a one-year, $5 million, contract with the Cardinals to avoid salary arbitration.[43]

Personal life

Flaherty was adopted by Eileen Flaherty when he was three weeks old.[44] Flaherty is a Christian.[45] He is biracial and identifies as Black[46] and has been actively involved in supporting the Black Lives Matter movement.[47]


  1. ^ "San Francisco Giants announce 2019 player development staff and affiliate staffs". MLB.com. January 23, 2019. Retrieved December 13, 2019.
  2. ^ "2013 All-Area Baseball Team: Harvard-Westlake's Jack Flaherty leads Daily News picks – Press Telegram". Presstelegram.com. June 12, 2013. Retrieved December 13, 2019.
  3. ^ Sondheimer, Eric (April 29, 2014). "Jack Flaherty tops the hierarchy of Harvard-Westlake pitchers". Los Angeles Times. Retrieved June 10, 2014.
  4. ^ Pollon, Jacob (April 29, 2014). "Jack Flaherty in control for Harvard-Westlake baseball". Los Angeles Daily News. Retrieved June 10, 2014.
  5. ^ Sondheimer, Eric (June 5, 2014). "Jack Flaherty is final player taken in first round of draft". Los Angeles Times. Retrieved June 10, 2014.
  6. ^ Los Angeles Times
  7. ^ "Harvard-Westlake's Jack Flaherty is Daily News All-Area Baseball Player of the Year – Daily News". Dailynews.com. June 17, 2014. Retrieved December 13, 2019.
  8. ^ Sondheimer, Eric (May 27, 2014). "Jack Flaherty is Gatorade state player of the year". Los Angeles Times. Retrieved June 10, 2014.
  9. ^ a b Sondheimer, Eric (June 14, 2014). "Pitcher Jack Flaherty is The Times' baseball player of the year". Los Angeles Times. Archived from the original on June 15, 2014. Retrieved June 19, 2014.
  10. ^ Sondheimer, Eric (June 4, 2014). "Harvard-Westlake's Jack Flaherty awaits MLB draft with great interest". Los Angeles Times. Retrieved June 10, 2014.
  11. ^ Trezza, Joe (June 5, 2014). "Cards draft four pitchers in two rounds". St. Louis Post-Dispatch. Retrieved June 10, 2014.
  12. ^ Cards ink 34th pick Flaherty to $2 million bonus
  13. ^ Manuel, John (November 16, 2015). "St. Louis Cardinals top 10 prospects". Baseball America. Retrieved January 1, 2016.
  14. ^ Staff Report (July 8, 2016). "Midseason top 100 prospects". Baseball America. Retrieved July 8, 2016.
  15. ^ "Cards prospect Flaherty to debut on Friday". MLB.com. August 30, 2017.
  16. ^ "Cards prospect Flaherty to debut on Friday". MLB.com. August 31, 2017.
  17. ^ "Flaherty's MLB debut with St. Louis Cardinals only goes four". Los Angeles Times. September 1, 2017.
  18. ^ "Flaherty, Bader named Cardinals' minor leaguers of the year". St. Louis Post-Dispatch. August 31, 2017.
  19. ^ "Ailing Wainwright (hamstring) to go on DL; Flaherty called up". St. Louis Post-Dispatch. Retrieved March 25, 2018.
  20. ^ "Flaherty dazzles, striking out 13 in 7 2/3 innings in 5-1 win". St. Louis Post-Dispatch. Retrieved May 20, 2018.
  21. ^ "St. Louis Cardinals 2018 player grades: Starting pitchers | Sports". kmov.com. October 2, 2018. Retrieved December 13, 2019.
  22. ^ "Cardinals Headed To NL Central Title Thanks To Jack Flaherty". Forbes.com. Retrieved December 13, 2019.
  23. ^ "MLB playoffs: St. Louis Cardinals clinch NL Central with rout of Cubs". Usatoday.com. September 29, 2019. Retrieved December 13, 2019.
  24. ^ "Multimedia". AFP.com. January 16, 2012. Retrieved December 13, 2019.
  25. ^ "Clevinger, Flaherty earn Aug. Pitchers of Month". MLB.com. Retrieved September 3, 2019.
  26. ^ "Cole, Flaherty named Pitchers of the Month". MLB.com. Retrieved September 30, 2019.
  27. ^ Calcaterra, Craig (September 29, 2019). "Tim Anderson, Christian Yelich win AL, NL batting titles - HardballTalk". Mlb.nbcsports.com. Retrieved December 13, 2019.
  28. ^ "Flaherty looks forward to staying consistent for Cardinals". USA Today.
  29. ^ 8:30 am to 11:00 am (October 24, 2019). "St. Louis Cardinals have six Gold Glove finalists | KMOX-AM". Kmox.radio.com. Retrieved December 13, 2019.
  30. ^ "Mets' Jacob deGrom cruises to landslide victory to take 2nd straight Cy Young Award – BBWAA". Retrieved November 14, 2019.
  31. ^ "Cardinals' Flaherty named to inaugural All-MLB second team". Fox Sports. December 10, 2019. Retrieved February 19, 2022.
  32. ^ "Cards ace Flaherty to start season vs. Pirates". July 15, 2020.
  33. ^ "Goold: As Cardinals face Flaherty in arbitration hearing, the real cost of MLB's system isn't only in dollars".
  34. ^ "Commentary | Jack Flaherty is not going to be quiet, and he shouldn't". February 16, 2021.
  35. ^ "Flaherty named Cards' Opening Day starter". MLB.com.
  36. ^ "Flaherty steals show with 1st HR, 7 scoreless". MLB.com.
  37. ^ "Cards put ace Flaherty (Oblique strain) on IL". MLB.com.
  38. ^ "'A perfect outing': Flaherty dominant in return". MLB.com.
  39. ^ "Cardinals place Jack Flaherty on 10-day injured list with shoulder strain".
  40. ^ "Cardinals' Jack Flaherty: Activated prior to start".
  41. ^ "Cardinals 2021 report card: Pitchers were solid at the top".
  42. ^ "Flaherty clarifies his right shoulder injury". MLB.com.
  43. ^ "Report: Cardinals, Flaherty avoid arbitration, settle on salary for 2022 season".
  44. ^ Post-Dispatch store. "Goold: Relentless 'five-tool' single moms shaped the lives of several Cardinals pitchers | St. Louis Cardinals". stltoday.com. Retrieved December 13, 2019.
  45. ^ Doering, Joshua (September 30, 2019). "St. Louis Cardinals pitcher Jack Flaherty stays grounded in Christ during historic season". Sports Spectrum.
  46. ^ Justice, Richard. "Flaherty's thoughts with shooting victim". MLB.
  47. ^ "Flaherty finds voice in fight for social justice". MLB.com.