Career Timeline of Jack Flaherty: Major Achievements and Milestones

By Popular Timelines Editorial Team · Updated: May 13, 2026

Discover the career path of Jack Flaherty, from the first major opportunity to industry-changing achievements.

Jack Flaherty is an American professional baseball pitcher currently playing for the Detroit Tigers in MLB. Drafted by the St. Louis Cardinals in the first round of the 2014 MLB draft, he debuted with them in 2017. Prior to joining the Tigers, Flaherty also played for the Baltimore Orioles and Los Angeles Dodgers, establishing himself as a notable player in Major League Baseball.

Sections (2)

Full Timeline Career & Achievements

2013: Junior Season at Harvard-Westlake

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.

April 29, 2014: Victory Over Bishop Alemany High School

On April 29, 2014, Flaherty pitched a complete game, a 2–1 victory over Bishop Alemany High School, bringing a two-year win–loss record to 20–0.

2014: Drafted by the Cardinals

In 2014, Flaherty was selected by the St. Louis Cardinals in the first round of the MLB draft.

2015: Played for the Peoria Chiefs

In 2015, Flaherty played for the Peoria Chiefs where he was 9–3 with a 2.84 ERA in 18 starts.

2016: Played for the Palm Beach Cardinals

In 2016, Flaherty spent the season with the Palm Beach Cardinals, where he was 5–9 with a 3.56 ERA in 24 games (23 starts).

September 1, 2017: MLB Debut Against Giants

On September 1, 2017, Flaherty was promoted to MLB and made his debut against the San Francisco Giants, pitching four innings and striking out six.

2017: Minor League Success

In 2017, Flaherty began the season with the Springfield Cardinals and was later promoted to the Memphis Redbirds after a strong performance.

2017: MLB Debut

In 2017, Jack Flaherty made his MLB debut with the St. Louis Cardinals.

March 25, 2018: Made Opening Day Roster

On March 25, 2018, the Cardinals announced that Flaherty had made the Opening Day roster in place of the injured Adam Wainwright.

May 20, 2018: First MLB Win

On May 20, 2018, Flaherty earned his first MLB win, striking out 13 in a 5–1 victory over the Philadelphia Phillies.

2020: Opening Day Start and Wild Card Series

In 2020, Flaherty made his first Opening Day start and later started in the Wild Card Series, taking the loss against the San Diego Padres.

2021: 2021 Season Performance

In the 2021 season, Flaherty appeared in 17 games (making 15 starts), going 9–2 with a 3.22 ERA and 85 strikeouts.

2021: Salary Arbitration and First Home Run

Prior to the 2021 season, Flaherty won his salary arbitration case against the Cardinals, and on May 8, he hit his first career home run.

January 13, 2023: Contract with the Cardinals

On January 13, 2023, Flaherty agreed to a one-year, $5.4 million contract with the Cardinals, avoiding salary arbitration.

August 1, 2023: Traded to the Baltimore Orioles

On August 1, 2023, Flaherty was traded to the Baltimore Orioles in exchange for prospects César Prieto, Drew Rom, and Zack Showalter.

December 20, 2023: Signed with the Detroit Tigers

On December 20, 2023, Flaherty signed a one-year, $14 million contract with the Detroit Tigers.

July 30, 2024: Traded to the Los Angeles Dodgers

On July 30, 2024, the Tigers traded Flaherty to the Los Angeles Dodgers in exchange for minor league prospects Thayron Liranzo and Trey Sweeney.

2024: Performance for Detroit Tigers

In 2024, Flaherty had a good performance with the Detroit Tigers with 7 wins, 5 losses and an ERA of 2.95.

2024: 2024 Postseason Performance

In 2024, Flaherty pitched in the NLDS and NLCS for the Dodgers, experiencing both successes and struggles, ultimately leading to a World Series start.