
Jack Flaherty
Free AgentP
Age: 31
Bats/Throws: R/R
6'4" / 225
DOB: 10/15/1995
(31 years, 18 days)
P
| Season | 2026 | 2027 | Total |
| Team | DET | FGDC | - - - |
| Level | MLB | PROJ | MLB |
| G | 20 | 28 | 210 |
| GS | 19 | 28 | 203 |
| IP | 88.1 | 147.0 | 1079.0 |
| K% | 26.0% | 24.6% | 27.3% |
| BB% | 10.6% | 8.9% | 8.7% |
| GB% | 30.0% | 39.4% | |
| ERA | 4.48 | 4.18 | 3.85 |
| FIP | 4.05 | 4.14 | 3.91 |
| WAR | 1.3 | 2.2 | 17.5 |
2026 Pitch
Selection
Selection
FA:49%
SL:24%
KC:19%
RosterResource
| Draft: | 2014, Rd: 1, Pick: 34, Ovr: 34 |
| Draft Team: | St. Louis Cardinals |
| School: | Harvard-Westlake (CA) HS |
| Contract | 2 yr, $35M (2025-26) (RR) |
Free Agent | AAV: $27.50M |
| Notes | Valley charge raises base AAV for 2025, lowers for 2026. |
Service Time
8.006MiLB Options
n/a
Free Agent
2027
News
Rotowire: Flaherty (forearm) was reinstated from the 15-day injured list Sunday and struck out one batter while allowing one hit and no walks over two scoreless innings in the Tigers' 4-2 loss to the Pirates in the season finale. (9/29/2026)
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| Season | Handedness | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | vs L | 48.1 | - - - | 218 | 42 | 8 | 3 | 20 | 19 | 5 | 29 | 0 | 2 | 50 | .230 | .338 | .388 | .324 |
| 2026 | vs R | 40.0 | - - - | 178 | 39 | 12 | 0 | 32 | 25 | 6 | 13 | 1 | 5 | 53 | .247 | .320 | .437 | .329 |
| Season | Home / Away | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Home | 48.1 | 4.47 | 205 | 35 | 11 | 2 | 26 | 24 | 3 | 19 | 1 | 5 | 63 | .199 | .289 | .335 | .278 |
| 2026 | Away | 40.0 | 4.50 | 191 | 46 | 9 | 1 | 26 | 20 | 8 | 23 | 0 | 2 | 40 | .279 | .374 | .491 | .378 |
| 2026 | Home vs L | 24.1 | - - - | 106 | 17 | 5 | 2 | 8 | 8 | 0 | 15 | 0 | 1 | 32 | .195 | .314 | .299 | .282 |
| 2026 | Home vs R | 24.0 | - - - | 99 | 18 | 6 | 0 | 18 | 16 | 3 | 4 | 1 | 4 | 31 | .202 | .263 | .371 | .273 |
| 2026 | Away vs L | 24.0 | - - - | 112 | 25 | 3 | 1 | 12 | 11 | 5 | 14 | 0 | 1 | 18 | .260 | .360 | .469 | .364 |
| 2026 | Away vs R | 16.0 | - - - | 79 | 21 | 6 | 0 | 14 | 9 | 3 | 9 | 0 | 1 | 22 | .304 | .392 | .522 | .398 |
| Season | Monthly | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Mar/Apr | 25.1 | 5.33 | 122 | 22 | 4 | 1 | 18 | 15 | 4 | 22 | 0 | 4 | 28 | .234 | .400 | .426 | .372 |
| 2026 | May | 27.1 | 6.26 | 127 | 33 | 8 | 1 | 24 | 19 | 4 | 8 | 1 | 1 | 36 | .289 | .331 | .482 | .344 |
| 2026 | Jun | 18.0 | 2.50 | 77 | 16 | 7 | 1 | 5 | 5 | 0 | 7 | 0 | 0 | 23 | .229 | .299 | .357 | .291 |
| 2026 | Jul | 15.2 | 2.87 | 63 | 9 | 1 | 0 | 5 | 5 | 3 | 5 | 0 | 2 | 15 | .161 | .254 | .339 | .267 |
| 2026 | Sept/Oct | 2.0 | 0.00 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .143 | .143 | .143 | .127 |
| 2026 | 1st Half | 82.1 | 4.48 | 371 | 76 | 20 | 3 | 49 | 41 | 9 | 40 | 1 | 7 | 98 | .239 | .333 | .406 | .326 |
| 2026 | 2nd Half | 6.0 | 4.50 | 25 | 5 | 0 | 0 | 3 | 3 | 2 | 2 | 0 | 0 | 5 | .217 | .280 | .478 | .327 |
| Season | Leverage | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Low Leverage | 36.1 | - - - | 163 | 31 | 11 | 1 | 6 | 6 | 4 | 19 | 0 | 3 | 47 | .221 | .327 | .400 | .324 |
| 2026 | Medium Leverage | 46.2 | - - - | 207 | 43 | 7 | 2 | 30 | 23 | 6 | 20 | 1 | 4 | 53 | .240 | .325 | .402 | .319 |
| 2026 | High Leverage | 5.1 | - - - | 26 | 7 | 2 | 0 | 16 | 15 | 1 | 3 | 0 | 0 | 3 | .318 | .385 | .545 | .393 |
| Season | Situational | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Bases Empty | 48.1 | - - - | 218 | 47 | 15 | 1 | 6 | 6 | 6 | 22 | 0 | 3 | 62 | .244 | .330 | .425 | .333 |
| 2026 | Men on Base | 40.0 | - - - | 178 | 34 | 5 | 2 | 46 | 38 | 5 | 20 | 1 | 4 | 41 | .230 | .330 | .392 | .317 |
| 2026 | Men In Scoring | 24.2 | - - - | 107 | 20 | 4 | 0 | 42 | 34 | 4 | 11 | 1 | 1 | 25 | .225 | .305 | .404 | .304 |
| Season | Through Count | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Through 3 - 0 | 1.1 | - - - | 19 | 2 | 0 | 1 | 1 | 1 | 0 | 13 | 1 | 0 | 1 | .333 | .789 | .667 | .604 |
| 2026 | Through 3 - 1 | 6.2 | - - - | 41 | 4 | 0 | 1 | 3 | 2 | 1 | 17 | 0 | 1 | 5 | .174 | .537 | .391 | .440 |
| 2026 | Through 3 - 2 | 13.0 | - - - | 70 | 12 | 3 | 2 | 5 | 5 | 0 | 20 | 0 | 1 | 17 | .255 | .471 | .404 | .399 |
| 2026 | Through 2 - 0 | 10.1 | - - - | 60 | 7 | 2 | 2 | 5 | 4 | 0 | 22 | 1 | 0 | 11 | .184 | .483 | .342 | .391 |
| 2026 | Through 1 - 0 | 34.1 | - - - | 166 | 34 | 7 | 3 | 22 | 21 | 3 | 29 | 1 | 3 | 36 | .256 | .398 | .421 | .365 |
| 2026 | Through 2 - 1 | 18.2 | - - - | 90 | 12 | 0 | 1 | 15 | 10 | 5 | 21 | 0 | 1 | 26 | .179 | .378 | .433 | .362 |
| 2026 | Through 1 - 1 | 38.2 | - - - | 169 | 33 | 9 | 1 | 21 | 17 | 6 | 18 | 0 | 4 | 57 | .226 | .325 | .425 | .331 |
| 2026 | Through 0 - 1 | 44.1 | - - - | 187 | 35 | 8 | 0 | 26 | 19 | 7 | 13 | 0 | 2 | 67 | .207 | .267 | .379 | .282 |
| 2026 | Through 2 - 2 | 26.1 | - - - | 112 | 17 | 3 | 1 | 15 | 12 | 1 | 15 | 0 | 0 | 46 | .179 | .286 | .263 | .255 |
| 2026 | Through 1 - 2 | 35.1 | - - - | 144 | 27 | 8 | 1 | 12 | 10 | 1 | 8 | 0 | 3 | 66 | .205 | .264 | .303 | .254 |
| 2026 | Through 0 - 2 | 19.2 | - - - | 81 | 18 | 3 | 0 | 10 | 8 | 2 | 2 | 0 | 0 | 35 | .231 | .247 | .346 | .257 |
| Season | SP / RP | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | As Starter | 86.1 | 4.59 | 389 | 80 | 20 | 3 | 52 | 44 | 11 | 42 | 1 | 7 | 102 | .240 | .333 | .416 | .330 |
| 2026 | As Reliever | 2.0 | 0.00 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .143 | .143 | .143 | .127 |
| Season | Shifts | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | No Shift | 7.1 | - - - | 34 | 11 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .324 | .324 | .441 | .332 |
| 2026 | Shift - All | 44.0 | - - - | 199 | 59 | 16 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .306 | .299 | .420 | .307 |
| 2026 | Shift - Traditional | 40.1 | - - - | 183 | 56 | 16 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .308 | .306 | .429 | .316 |
| 2026 | Shift - Non Traditional | 3.2 | - - - | 16 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .273 | .214 | .273 | .191 |
| Season | TTO | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | 1st Through Order as SP | 38.2 | 3.03 | 171 | 35 | 11 | 2 | 14 | 13 | 5 | 16 | 0 | 5 | 52 | .235 | .329 | .436 | .337 |
| 2026 | 2nd Through Order as SP | 36.1 | 5.20 | 162 | 34 | 5 | 1 | 28 | 21 | 6 | 16 | 0 | 1 | 34 | .241 | .317 | .418 | .321 |
| 2026 | 3rd Through Order as SP | 11.1 | 7.94 | 56 | 11 | 4 | 0 | 10 | 10 | 0 | 10 | 1 | 1 | 16 | .250 | .393 | .341 | .333 |
| 2026 | 1st Through Order as RP | 2.0 | 0.00 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .143 | .143 | .143 | .127 |
| Season | Handedness | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | vs L | 48.1 | - - - | 218 | 42 | 8 | 3 | 20 | 19 | 5 | 29 | 0 | 2 | 50 | .230 | .338 | .388 | .324 |
| 2026 | vs R | 40.0 | - - - | 178 | 39 | 12 | 0 | 32 | 25 | 6 | 13 | 1 | 5 | 53 | .247 | .320 | .437 | .329 |
| Season | Home / Away | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Home | 48.1 | 4.47 | 205 | 35 | 11 | 2 | 26 | 24 | 3 | 19 | 1 | 5 | 63 | .199 | .289 | .335 | .278 |
| 2026 | Away | 40.0 | 4.50 | 191 | 46 | 9 | 1 | 26 | 20 | 8 | 23 | 0 | 2 | 40 | .279 | .374 | .491 | .378 |
| 2026 | Home vs L | 24.1 | - - - | 106 | 17 | 5 | 2 | 8 | 8 | 0 | 15 | 0 | 1 | 32 | .195 | .314 | .299 | .282 |
| 2026 | Home vs R | 24.0 | - - - | 99 | 18 | 6 | 0 | 18 | 16 | 3 | 4 | 1 | 4 | 31 | .202 | .263 | .371 | .273 |
| 2026 | Away vs L | 24.0 | - - - | 112 | 25 | 3 | 1 | 12 | 11 | 5 | 14 | 0 | 1 | 18 | .260 | .360 | .469 | .364 |
| 2026 | Away vs R | 16.0 | - - - | 79 | 21 | 6 | 0 | 14 | 9 | 3 | 9 | 0 | 1 | 22 | .304 | .392 | .522 | .398 |
| Season | Monthly | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Mar/Apr | 25.1 | 5.33 | 122 | 22 | 4 | 1 | 18 | 15 | 4 | 22 | 0 | 4 | 28 | .234 | .400 | .426 | .372 |
| 2026 | May | 27.1 | 6.26 | 127 | 33 | 8 | 1 | 24 | 19 | 4 | 8 | 1 | 1 | 36 | .289 | .331 | .482 | .344 |
| 2026 | Jun | 18.0 | 2.50 | 77 | 16 | 7 | 1 | 5 | 5 | 0 | 7 | 0 | 0 | 23 | .229 | .299 | .357 | .291 |
| 2026 | Jul | 15.2 | 2.87 | 63 | 9 | 1 | 0 | 5 | 5 | 3 | 5 | 0 | 2 | 15 | .161 | .254 | .339 | .267 |
| 2026 | Sept/Oct | 2.0 | 0.00 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .143 | .143 | .143 | .127 |
| 2026 | 1st Half | 82.1 | 4.48 | 371 | 76 | 20 | 3 | 49 | 41 | 9 | 40 | 1 | 7 | 98 | .239 | .333 | .406 | .326 |
| 2026 | 2nd Half | 6.0 | 4.50 | 25 | 5 | 0 | 0 | 3 | 3 | 2 | 2 | 0 | 0 | 5 | .217 | .280 | .478 | .327 |
| Season | Leverage | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Low Leverage | 36.1 | - - - | 163 | 31 | 11 | 1 | 6 | 6 | 4 | 19 | 0 | 3 | 47 | .221 | .327 | .400 | .324 |
| 2026 | Medium Leverage | 46.2 | - - - | 207 | 43 | 7 | 2 | 30 | 23 | 6 | 20 | 1 | 4 | 53 | .240 | .325 | .402 | .319 |
| 2026 | High Leverage | 5.1 | - - - | 26 | 7 | 2 | 0 | 16 | 15 | 1 | 3 | 0 | 0 | 3 | .318 | .385 | .545 | .393 |
| Season | Situational | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Bases Empty | 48.1 | - - - | 218 | 47 | 15 | 1 | 6 | 6 | 6 | 22 | 0 | 3 | 62 | .244 | .330 | .425 | .333 |
| 2026 | Men on Base | 40.0 | - - - | 178 | 34 | 5 | 2 | 46 | 38 | 5 | 20 | 1 | 4 | 41 | .230 | .330 | .392 | .317 |
| 2026 | Men In Scoring | 24.2 | - - - | 107 | 20 | 4 | 0 | 42 | 34 | 4 | 11 | 1 | 1 | 25 | .225 | .305 | .404 | .304 |
| Season | Through Count | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | Through 3 - 0 | 1.1 | - - - | 19 | 2 | 0 | 1 | 1 | 1 | 0 | 13 | 1 | 0 | 1 | .333 | .789 | .667 | .604 |
| 2026 | Through 3 - 1 | 6.2 | - - - | 41 | 4 | 0 | 1 | 3 | 2 | 1 | 17 | 0 | 1 | 5 | .174 | .537 | .391 | .440 |
| 2026 | Through 3 - 2 | 13.0 | - - - | 70 | 12 | 3 | 2 | 5 | 5 | 0 | 20 | 0 | 1 | 17 | .255 | .471 | .404 | .399 |
| 2026 | Through 2 - 0 | 10.1 | - - - | 60 | 7 | 2 | 2 | 5 | 4 | 0 | 22 | 1 | 0 | 11 | .184 | .483 | .342 | .391 |
| 2026 | Through 1 - 0 | 34.1 | - - - | 166 | 34 | 7 | 3 | 22 | 21 | 3 | 29 | 1 | 3 | 36 | .256 | .398 | .421 | .365 |
| 2026 | Through 2 - 1 | 18.2 | - - - | 90 | 12 | 0 | 1 | 15 | 10 | 5 | 21 | 0 | 1 | 26 | .179 | .378 | .433 | .362 |
| 2026 | Through 1 - 1 | 38.2 | - - - | 169 | 33 | 9 | 1 | 21 | 17 | 6 | 18 | 0 | 4 | 57 | .226 | .325 | .425 | .331 |
| 2026 | Through 0 - 1 | 44.1 | - - - | 187 | 35 | 8 | 0 | 26 | 19 | 7 | 13 | 0 | 2 | 67 | .207 | .267 | .379 | .282 |
| 2026 | Through 2 - 2 | 26.1 | - - - | 112 | 17 | 3 | 1 | 15 | 12 | 1 | 15 | 0 | 0 | 46 | .179 | .286 | .263 | .255 |
| 2026 | Through 1 - 2 | 35.1 | - - - | 144 | 27 | 8 | 1 | 12 | 10 | 1 | 8 | 0 | 3 | 66 | .205 | .264 | .303 | .254 |
| 2026 | Through 0 - 2 | 19.2 | - - - | 81 | 18 | 3 | 0 | 10 | 8 | 2 | 2 | 0 | 0 | 35 | .231 | .247 | .346 | .257 |
| Season | SP / RP | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | As Starter | 86.1 | 4.59 | 389 | 80 | 20 | 3 | 52 | 44 | 11 | 42 | 1 | 7 | 102 | .240 | .333 | .416 | .330 |
| 2026 | As Reliever | 2.0 | 0.00 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .143 | .143 | .143 | .127 |
| Season | Shifts | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | No Shift | 7.1 | - - - | 34 | 11 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .324 | .324 | .441 | .332 |
| 2026 | Shift - All | 44.0 | - - - | 199 | 59 | 16 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .306 | .299 | .420 | .307 |
| 2026 | Shift - Traditional | 40.1 | - - - | 183 | 56 | 16 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .308 | .306 | .429 | .316 |
| 2026 | Shift - Non Traditional | 3.2 | - - - | 16 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .273 | .214 | .273 | .191 |
| Season | TTO | IP | ERA | TBF | H | 2B | 3B | R | ER | HR | BB | IBB | HBP | SO | AVG | OBP | SLG | wOBA |
| 2026 | 1st Through Order as SP | 38.2 | 3.03 | 171 | 35 | 11 | 2 | 14 | 13 | 5 | 16 | 0 | 5 | 52 | .235 | .329 | .436 | .337 |
| 2026 | 2nd Through Order as SP | 36.1 | 5.20 | 162 | 34 | 5 | 1 | 28 | 21 | 6 | 16 | 0 | 1 | 34 | .241 | .317 | .418 | .321 |
| 2026 | 3rd Through Order as SP | 11.1 | 7.94 | 56 | 11 | 4 | 0 | 10 | 10 | 0 | 10 | 1 | 1 | 16 | .250 | .393 | .341 | .333 |
| 2026 | 1st Through Order as RP | 2.0 | 0.00 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .143 | .143 | .143 | .127 |

