PIT @ DETFinal 4-2, Sep 27, 2026
IP 2.0, H 1, R 0, ER 0, BB 0, K 1, HR 0, PC-ST 19-12, ERA 4.48, PC 19
Betting: DET moneyline lost, run line +1.5 did not cover
BaseballMLBDetroit TigersStarting pitcher
Jack Flaherty
Stats, career and game logJack Flaherty is a starting pitcher for the Detroit Tigers and won the World Series in 2024.
231 MLB games1,233 strikeouts
Updated
About Jack Flaherty
Born in Burbank, California, on October 15, 1995, Jack Flaherty bats right-handed and throws right-handed. His MLB debut came on Sep 1, 2017, with the St. Louis Cardinals, and he pitched for the Cardinals from 2017 to 2023. Since 2025 he has pitched for the Detroit Tigers as a starting pitcher.
In 2023 he also played for the Baltimore Orioles. In 2024 he pitched for the Detroit Tigers and the Los Angeles Dodgers. Flaherty won the World Series in 2024. In the 2019 regular season he made 33 starts for the St. Louis Cardinals with a 2.75 ERA and 231 strikeouts in 196.1 innings. Through the 2025 season, Flaherty had a 3.80 ERA and 1,130 strikeouts in 990.2 innings over 190 games.
On Sep 27, 2026, Flaherty pitched 2.0 innings in relief against the Pittsburgh Pirates, allowing 1 hit and no earned runs with 1 strikeout in a 4-2 loss.
Agatha Research DeskUpdated Nov 9, 2026Season by season231
231 appearances: 218 regular season, 13 postseason. Every MLB appearance of his career, newest season first.
| Season | Team | Games | Starts | IP | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2026 | DET | 20 | 19 | 88.1 | 103 | 42 | 4.48 | 1.39 |
| 2025 | DET | 31 | 31 | 161.0 | 188 | 59 | 4.64 | 1.28 |
| 2025 postseason | 3 | 2 | 10.0 | 12 | 8 | 3.60 | 1.50 | |
| 2024 | DET, LAD | 28 | 28 | 162.0 | 194 | 38 | 3.17 | 1.07 |
| 2024 postseason |  LAD | 5 | 5 | 22.0 | 15 | 9 | 7.36 | 1.50 |
| 2023 | STL, BAL | 29 | 27 | 144.1 | 148 | 66 | 4.99 | 1.58 |
| 2023 postseason |  BAL | 1 | 0 | 2.0 | 1 | 3 | 4.50 | 2.50 |
| 2022 |  STL | 9 | 8 | 36.0 | 33 | 22 | 4.25 | 1.61 |
| 2021 | STL | 17 | 15 | 78.1 | 85 | 26 | 3.22 | 1.06 |
| 2020 | STL | 9 | 9 | 40.1 | 49 | 16 | 4.91 | 1.21 |
| 2020 postseason | 1 | 1 | 6.0 | 8 | 2 | 1.50 | 1.33 | |
| 2019 | STL | 38 | 33 | 196.1 | 231 | 55 | 2.75 | 0.97 |
| 2019 postseason | 3 | 3 | 17.0 | 22 | 4 | 4.24 | 1.24 | |
| 2018 | STL | 31 | 28 | 151.0 | 182 | 59 | 3.34 | 1.11 |
| 2017 | STL | 6 | 5 | 21.1 | 20 | 10 | 6.33 | 1.55 |
| Career | 218 | 203 | 1079.0 | 1,233 | 393 | 3.85 | 1.21 | |
| Career postseason | 13 | 11 | 57.0 | 58 | 26 | 5.05 | 1.44 |
How he is doing now
2026 pitching4.48 ERA88.1 innings, 103 strikeouts, 1.39 WHIP
Tigers76-862026 regular season
Last game2.0 IP, 1 K, 0 ERSep 27 vs Pirates
Injury status
No active flag. Latest report 15-Day-IL (50d ago), no longer on the injury report.
Game log, 2026
Box score lines from ESPN.
Betting: his team's result at the closing moneyline and run line most of our sportsbooks closed at (3 books or more).
Did you know?!
All-MLB Second Team
In 2019, Flaherty was named to the All-MLB Second Team.
A 14-strikeout start
Flaherty started against the St. Louis Cardinals on Apr 30, 2024 and allowed no earned runs on 2 hits over 6.2 innings, striking out 14 and walking 1 in a 2-1 loss.
Career
9years2017 to 2026
- 2017MLB debutSt. Louis Cardinals
- 2019Best season196.1 IP, 231 K, 2.75 ERA in 33 games
- 2024Best start6.2 IP, 14 K, 0 ER, vs Cardinals
- Sep 27, 2026Latest game2.0 IP, 1 K, 0 ER vs Pirates
Regular season
210 games
1079.0 IP, 1233 K, 3.85 ERA
Postseason
13 games
57.0 IP, 58 K, 5.05 ERA
Honors
- World Series champion (2024)
- All-MLB Second Team (2019)
MLB debut
2017 seasonSt. Louis Cardinals
Latest game
Sep 27, 2026: 2.0 IP, 1 K, 0 ERPirates 4, Tigers 2
Most often against
The teams he has faced most, with his teams' record and his line against each.
Cleveland Guardians10 games
4-6his teams
His line: 56.0 IP, 49 K, 2.25 ERA
Last met Jun 12, 2026
Houston Astros7 games
3-4his teams
His line: 35.2 IP, 45 K, 2.52 ERA
Last met Jun 28, 2026
Chicago White Sox6 games
4-2his teams
His line: 32.0 IP, 34 K, 3.66 ERA
Last met Sep 5, 2025
Texas Rangers6 games
3-3his teams
His line: 25.1 IP, 26 K, 3.55 ERA
Last met Jul 4, 2026
Toronto Blue Jays6 games
4-2his teams
His line: 35.2 IP, 42 K, 3.03 ERA
Last met May 17, 2026
Boston Red Sox5 games
3-2his teams
His line: 19.1 IP, 27 K, 3.26 ERA
Last met May 6, 2026
Injury history
ESPN's injury reports, newest first.
- Sep 22, 202615-Day-IL Forearm
Flaherty (forearm) will be activated from the 15-day injured list and pitch during this weekend's series against the Pirates, Cody Stavenhagen of The Athletic reports.
ESPN / DET
- Sep 11, 202615-Day-IL Forearm
Flaherty (forearm) is slated to throw a 2-to-3-inning simulated game Saturday, Jason Beck of MLB.com reports.
ESPN / DET
- Sep 1, 202615-Day-IL Flexor
Flaherty is dealing with right flexor inflammation and has been placed on the 15-day injured list.
sdio / DET
- Aug 23, 202615-Day-IL Forearm
Flaherty (forearm) threw a bullpen session Sunday in Kansas City, MLB.com reports.
ESPN / DET
Show all 7 reports
- Aug 21, 202615-Day-IL Flexor
Flaherty is dealing with right flexor inflammation and has been placed on the 15-day injured list.
sdio / DET
- Aug 16, 202615-Day-IL Forearm
The Tigers announced Friday that Flaherty (forearm) has increased the intensity and distance of his throwing progression, MLB.com reports.
ESPN / DET
- Jul 28, 202615-Day-IL Forearm
Manager A.J. Hinch said Tuesday that he expects Flaherty (forearm) to be on the injured list beyond the 15-day minimum, Cody Stavenhagen of The Athletic reports.
ESPN / DET
Sources and updates
Stats, scores and injury reports come from Agatha's own records: the SABR Lahman Baseball Database for the seasons through 2025, MLB's own box scores, its transactions and ESPN's injury reports.
Updated Nov 11, 2026, 7:24 AM ET. Results and form refresh after every game; biography facts are checked weekly.