Jack Flaherty
Jack Rafe Flaherty
Born: October 15, 1995
Burbank, CA USA
Primary Position: P
All Position(s) Played: P, PR
Bats: R
Throws: R
Height: 6'4"
Weight: 225
Career: 2017-2026
Draft: Round 1 (2014 June Amateur Draft, St. Louis Cardinals)
School: Harvard-Westlake (CA) HS
Minor League Statistics
Jack Flaherty compiled a career batting average of .154 with 1 home runs and 7 RBI in his 201-game career with the St. Louis Cardinals, Baltimore Orioles, Los Angeles Dodgers and Detroit Tigers. He began playing during the 2017 season and last took the field during the 2026 campaign.
Click on column headings to sort.
Pitching:
| Year | Lg | Team | W | L | W% | ERA | G | GS | GF | CG | SHO | SV | IP | H | R | ER | HR | BB | IBB | SO | HBP | BK | WP | BF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2017 | NL | St. Louis Cardinals | 0 | 2 | .000 | 6.33 | 6 | 5 | 0 | 0 | 0 | 0 | 21.3 | 23 | 15 | 15 | 4 | 10 | 1 | 20 | 1 | 0 | 0 | 94 |
| 2018 | NL | St. Louis Cardinals | 8 | 9 | .471 | 3.34 | 28 | 28 | 0 | 0 | 0 | 0 | 151.0 | 108 | 59 | 56 | 20 | 59 | 3 | 182 | 11 | 0 | 6 | 615 |
| 2019 | NL | St. Louis Cardinals | 11 | 8 | .579 | 2.75 | 33 | 33 | 0 | 0 | 0 | 0 | 196.3 | 135 | 62 | 60 | 25 | 55 | 2 | 231 | 7 | 0 | 6 | 772 |
| 2020 | NL | St. Louis Cardinals | 4 | 3 | .571 | 4.91 | 9 | 9 | 0 | 0 | 0 | 0 | 40.3 | 33 | 22 | 22 | 6 | 16 | 0 | 49 | 3 | 0 | 1 | 170 |
| 2021 | NL | St. Louis Cardinals | 9 | 2 | .818 | 3.22 | 17 | 15 | 0 | 0 | 0 | 0 | 78.3 | 57 | 35 | 28 | 12 | 26 | 1 | 85 | 6 | 0 | 4 | 322 |
| 2022 | NL | St. Louis Cardinals | 2 | 1 | .667 | 4.25 | 9 | 8 | 0 | 0 | 0 | 0 | 36.0 | 36 | 18 | 17 | 4 | 22 | 0 | 33 | 5 | 0 | 0 | 167 |
| 2023 | NL | St. Louis Cardinals | 7 | 6 | .538 | 4.43 | 20 | 20 | 0 | 0 | 0 | 0 | 109.7 | 116 | 56 | 54 | 10 | 54 | 0 | 106 | 8 | 0 | 6 | 485 |
| 2023 | AL | Baltimore Orioles | 1 | 3 | .250 | 6.75 | 9 | 7 | 0 | 0 | 0 | 0 | 34.7 | 46 | 27 | 26 | 7 | 12 | 2 | 42 | 4 | 0 | 2 | 165 |
| 2024 | AL | Detroit Tigers | 7 | 5 | .583 | 2.95 | 18 | 18 | 0 | 0 | 0 | 0 | 106.7 | 83 | 38 | 35 | 15 | 19 | 0 | 133 | 3 | 0 | 4 | 415 |
| 2024 | NL | Los Angeles Dodgers | 6 | 2 | .750 | 3.58 | 10 | 10 | 0 | 0 | 0 | 0 | 55.3 | 52 | 23 | 22 | 9 | 19 | 0 | 61 | 1 | 0 | 2 | 234 |
| 2025 | AL | Detroit Tigers | 8 | 15 | .348 | 4.64 | 31 | 31 | 0 | 0 | 0 | 0 | 161.0 | 147 | 85 | 83 | 23 | 59 | 1 | 188 | 5 | 0 | 4 | 681 |
| 2026 | AL | Detroit Tigers | 0 | 1 | .000 | 5.14 | 3 | 3 | 0 | 0 | 0 | 0 | 14.0 | 12 | 9 | 8 | 1 | 11 | 0 | 14 | 3 | 0 | 0 | 66 |
| Totals | 63 | 57 | .525 | 3.82 | 193 | 187 | 0 | 0 | 0 | 0 | 1004.7 | 848 | 449 | 426 | 136 | 362 | 10 | 1144 | 57 | 0 | 35 | 4186 |
Batting:
| Year | Lg | Team | GP | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS | TB | DP | HBP | SH | SF | IBB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2017 | NL | St. Louis Cardinals | 6 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | .000 | .000 | .000 | .000 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2018 | NL | St. Louis Cardinals | 31 | 52 | 46 | 2 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 20 | .152 | .188 | .152 | .340 | 7 | 0 | 0 | 4 | 0 | 0 |
| 2019 | NL | St. Louis Cardinals | 38 | 66 | 54 | 4 | 10 | 3 | 0 | 0 | 4 | 1 | 1 | 2 | 17 | .185 | .211 | .241 | .451 | 13 | 0 | 0 | 9 | 1 | 0 |
| 2020 | NL | St. Louis Cardinals | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 2021 | NL | St. Louis Cardinals | 17 | 26 | 17 | 2 | 2 | 0 | 0 | 1 | 3 | 0 | 0 | 5 | 7 | .118 | .304 | .294 | .598 | 5 | 0 | 0 | 3 | 1 | 0 |
| 2022 | NL | St. Louis Cardinals | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 2023 | NL | St. Louis Cardinals | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 2023 | AL | Baltimore Orioles | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 2024 | AL | Detroit Tigers | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 2024 | NL | Los Angeles Dodgers | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 2025 | AL | Detroit Tigers | 31 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| Totals | 198 | 150 | 123 | 8 | 19 | 3 | 0 | 1 | 7 | 1 | 1 | 9 | 46 | .154 | .209 | .203 | .412 | 25 | 0 | 0 | 16 | 2 | 0 |
Fielding:
| Year | Lg | Team | Pos | GP | GS | Inn. | PO | A | E | DP | Fld% | RF/9 | RF/G |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2017 | NL | St. Louis Cardinals | P | 6 | 5 | 21.3 | 1 | 3 | 0 | 0 | 1.000 | 1.688 | .667 |
| 2018 | NL | St. Louis Cardinals | P | 28 | 28 | 151.0 | 7 | 11 | 2 | 0 | .900 | 1.073 | .643 |
| 2019 | NL | St. Louis Cardinals | P | 33 | 33 | 196.3 | 18 | 23 | 0 | 4 | 1.000 | 1.879 | 1.242 |
| 2020 | NL | St. Louis Cardinals | P | 9 | 9 | 40.3 | 1 | 4 | 0 | 0 | 1.000 | 1.116 | .556 |
| 2021 | NL | St. Louis Cardinals | P | 17 | 15 | 78.3 | 7 | 6 | 1 | 0 | .929 | 1.494 | .765 |
| 2022 | NL | St. Louis Cardinals | P | 9 | 8 | 36.0 | 3 | 3 | 2 | 0 | .750 | 1.500 | .667 |
| 2023 | NL | St. Louis Cardinals | P | 20 | 20 | 109.7 | 14 | 7 | 0 | 1 | 1.000 | 1.723 | 1.050 |
| 2023 | AL | Baltimore Orioles | P | 9 | 7 | 34.7 | 4 | 7 | 0 | 2 | 1.000 | 2.856 | 1.222 |
| 2024 | AL | Detroit Tigers | P | 18 | 18 | 106.7 | 6 | 6 | 0 | 0 | 1.000 | 1.013 | .667 |
| 2024 | NL | Los Angeles Dodgers | P | 10 | 10 | 55.3 | 4 | 3 | 0 | 0 | 1.000 | 1.139 | .700 |
| 2025 | AL | Detroit Tigers | P | 31 | 31 | 161.0 | 15 | 14 | 0 | 1 | 1.000 | 1.621 | .935 |
| 2026 | AL | Detroit Tigers | P | 3 | 3 | 14.0 | 0 | 2 | 0 | 0 | 1.000 | 1.286 | .667 |
| Totals | 193 | 187 | 1004.7 | 80 | 89 | 5 | 8 | .971 | 1.514 | .876 |
Postseason - Pitching:
| Year | Lg | Team | Rnd | W | L | W% | ERA | G | GS | GF | CG | SHO | SV | IP | H | R | ER | HR | BB | IBB | SO | HBP | BK | WP | BF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | NL | St. Louis Cardinals | NLDS2 | 1 | 1 | .500 | 2.77 | 2 | 2 | 0 | 0 | 0 | 0 | 13.0 | 12 | 4 | 4 | 2 | 2 | 0 | 16 | 1 | 0 | 2 | 53 |
| 2019 | NL | St. Louis Cardinals | NLCS | 0 | 1 | .000 | 9.00 | 1 | 1 | 0 | 0 | 0 | 0 | 4.0 | 5 | 4 | 4 | 0 | 2 | 0 | 6 | 0 | 0 | 1 | 19 |
| 2020 | NL | St. Louis Cardinals | NLWC2 | 0 | 1 | .000 | 1.50 | 1 | 1 | 0 | 0 | 0 | 0 | 6.0 | 6 | 1 | 1 | 0 | 2 | 0 | 8 | 0 | 0 | 0 | 26 |
| 2023 | AL | Baltimore Orioles | ALDS1 | 0 | 0 | 4.50 | 1 | 0 | 0 | 0 | 0 | 0 | 2.0 | 2 | 1 | 1 | 0 | 3 | 0 | 1 | 0 | 0 | 0 | 10 | |
| 2024 | NL | Los Angeles Dodgers | NLDS2 | 0 | 1 | .000 | 6.75 | 1 | 1 | 0 | 0 | 0 | 0 | 5.3 | 5 | 4 | 4 | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 22 |
| 2024 | NL | Los Angeles Dodgers | NLCS | 1 | 1 | .500 | 7.20 | 2 | 2 | 0 | 0 | 0 | 0 | 10.0 | 10 | 8 | 8 | 1 | 6 | 0 | 6 | 0 | 0 | 0 | 45 |
| 2024 | NL | Los Angeles Dodgers | WS | 0 | 0 | 8.10 | 2 | 2 | 0 | 0 | 0 | 0 | 6.7 | 9 | 6 | 6 | 3 | 2 | 0 | 7 | 0 | 0 | 0 | 31 | |
| 2025 | AL | Detroit Tigers | ALWC1 | 0 | 0 | 1.93 | 1 | 1 | 0 | 0 | 0 | 0 | 4.7 | 3 | 1 | 1 | 0 | 2 | 0 | 4 | 0 | 0 | 0 | 17 | |
| 2025 | AL | Detroit Tigers | ALDS2 | 0 | 1 | .000 | 5.06 | 2 | 1 | 0 | 0 | 0 | 0 | 5.3 | 4 | 4 | 3 | 1 | 6 | 0 | 8 | 0 | 0 | 0 | 24 |
| Totals | 2 | 6 | .250 | 5.05 | 13 | 11 | 0 | 0 | 0 | 0 | 57.0 | 56 | 33 | 32 | 9 | 26 | 0 | 58 | 2 | 0 | 3 | 247 |
Postseason - Batting:
| Year | Lg | Team | Rnd | GP | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS | TB | DP | HBP | SH | SF | IBB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | NL | St. Louis Cardinals | NLDS2 | 2 | 6 | 5 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 3 | .000 | .167 | .000 | .167 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2019 | NL | St. Louis Cardinals | NLCS | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2020 | NL | St. Louis Cardinals | NLWC2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 2023 | AL | Baltimore Orioles | ALDS1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 2024 | NL | Los Angeles Dodgers | NLDS2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 2024 | NL | Los Angeles Dodgers | NLCS | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 2024 | NL | Los Angeles Dodgers | WS | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 2025 | AL | Detroit Tigers | ALWC1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 2025 | AL | Detroit Tigers | ALDS2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| Totals | 13 | 7 | 6 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 4 | .000 | .143 | .000 | .143 | 0 | 0 | 0 | 0 | 0 | 0 |
Postseason - Fielding:
| Year | Lg | Team | Rnd | Pos | GP | GS | Inn. | PO | A | E | DP | Fld% | RF/9 | RF/G |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | NL | St. Louis Cardinals | NLDS2 | P | 2 | 2 | 13.0 | 1 | 2 | 0 | 0 | 1.000 | 2.077 | 1.500 |
| 2019 | NL | St. Louis Cardinals | NLCS | P | 1 | 1 | 4.0 | 0 | 1 | 0 | 0 | 1.000 | 2.250 | 1.000 |
| 2020 | NL | St. Louis Cardinals | NLWC2 | P | 1 | 1 | 6.0 | 0 | 1 | 0 | 0 | 1.000 | 1.500 | 1.000 |
| 2023 | AL | Baltimore Orioles | ALDS1 | P | 1 | 0 | 2.0 | 0 | 0 | 0 | 0 | .000 | .000 | |
| 2024 | NL | Los Angeles Dodgers | NLDS2 | P | 1 | 1 | 5.3 | 0 | 1 | 0 | 0 | 1.000 | 1.688 | 1.000 |
| 2024 | NL | Los Angeles Dodgers | NLCS | P | 2 | 2 | 10.0 | 1 | 0 | 0 | 0 | 1.000 | .900 | .500 |
| 2024 | NL | Los Angeles Dodgers | WS | P | 2 | 2 | 6.7 | 1 | 0 | 0 | 0 | 1.000 | 1.350 | .500 |
| 2025 | AL | Detroit Tigers | ALWC1 | P | 1 | 1 | 4.7 | 0 | 0 | 0 | 0 | .000 | .000 | |
| 2025 | AL | Detroit Tigers | ALDS2 | P | 2 | 1 | 5.3 | 0 | 1 | 0 | 0 | 1.000 | 1.688 | .500 |
| Totals | 13 | 11 | 57.0 | 3 | 6 | 0 | 0 | 1.000 | 1.421 | .692 |
Awards
2019 - NL Pitcher of the Month August
2019 - NL Pitcher of the Month September
Statistical data from Baseball Databank, made available under the Creative Commons Attribution-ShareAlike 3.0 Unported License




