
Jack Flaherty
Detroit TigersP
Age: 31
Bats/Throws: R/R
6'4" / 225
DOB: 10/15/1995
(31 years, 10 days)
P
| Season | 2026 | 2026 | Total |
| Team | FGDC | DET | - - - |
| Level | PROJ | MLB | MLB |
| G | 29 | 20 | 210 |
| GS | 29 | 19 | 203 |
| IP | 160.0 | 88.1 | 1079.0 |
| K% | 25.7% | 26.0% | 27.3% |
| BB% | 8.4% | 10.6% | 8.7% |
| GB% | 30.0% | 39.4% | |
| ERA | 4.03 | 4.48 | 3.85 |
| FIP | 3.89 | 4.05 | 3.91 |
| WAR | 2.5 | 1.3 | 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 | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | vs L | 9.31 | 5.40 | 1.72 | 0.93 | 22.9% | 13.3% | 9.6% | .230 | 1.47 | .280 | 80.3% | 4.30 | 5.17 |
| 2026 | vs R | 11.93 | 2.93 | 4.08 | 1.35 | 29.8% | 7.3% | 22.5% | .247 | 1.30 | .327 | 51.4% | 3.75 | 3.61 |
| Season | Home / Away | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | Home | 11.73 | 3.54 | 3.32 | 0.56 | 30.7% | 9.3% | 21.5% | .199 | 1.12 | .278 | 60.2% | 2.79 | 3.79 |
| 2026 | Away | 9.00 | 5.18 | 1.74 | 1.80 | 20.9% | 12.0% | 8.9% | .279 | 1.73 | .322 | 75.3% | 5.57 | 5.28 |
| 2026 | Home vs L | 11.84 | 5.55 | 2.13 | 0.00 | 30.2% | 14.2% | 16.0% | .195 | 1.32 | .293 | 75.8% | 2.44 | 4.24 |
| 2026 | Home vs R | 11.63 | 1.50 | 7.75 | 1.13 | 31.3% | 4.0% | 27.3% | .202 | 0.92 | .263 | 36.7% | 3.14 | 3.34 |
| 2026 | Away vs L | 6.75 | 5.25 | 1.29 | 1.88 | 16.1% | 12.5% | 3.6% | .260 | 1.63 | .270 | 84.8% | 6.18 | 6.12 |
| 2026 | Away vs R | 12.38 | 5.06 | 2.44 | 1.69 | 27.8% | 11.4% | 16.5% | .304 | 1.88 | .409 | 63.4% | 4.66 | 4.02 |
| Season | Monthly | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | Mar/Apr | 9.95 | 7.82 | 1.27 | 1.42 | 23.0% | 18.0% | 4.9% | .234 | 1.74 | .281 | 70.8% | 6.02 | 5.99 |
| 2026 | May | 11.85 | 2.63 | 4.50 | 1.32 | 28.3% | 6.3% | 22.0% | .289 | 1.50 | .372 | 49.5% | 3.36 | 3.61 |
| 2026 | Jun | 11.50 | 3.50 | 3.29 | 0.00 | 29.9% | 9.1% | 20.8% | .229 | 1.28 | .340 | 78.3% | 1.71 | 3.64 |
| 2026 | Jul | 8.62 | 2.87 | 3.00 | 1.72 | 23.8% | 7.9% | 15.9% | .161 | 0.89 | .158 | 93.2% | 5.01 | 4.45 |
| 2026 | Sept/Oct | 4.50 | 0.00 | 1.00 | 0.00 | 14.3% | 0.0% | 14.3% | .143 | 0.50 | .167 | 100.0% | 2.10 | 4.36 |
| 2026 | 1st Half | 10.71 | 4.37 | 2.45 | 0.98 | 26.4% | 10.8% | 15.6% | .239 | 1.41 | .309 | 67.0% | 3.85 | 4.41 |
| 2026 | 2nd Half | 7.50 | 3.00 | 2.50 | 3.00 | 20.0% | 8.0% | 12.0% | .217 | 1.17 | .188 | 95.2% | 6.77 | 5.20 |
| Season | Leverage | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | Low Leverage | 11.64 | 4.71 | 2.47 | 0.99 | 28.8% | 11.7% | 17.2% | .221 | 1.38 | .300 | 99.2% | 3.76 | 4.12 |
| 2026 | Medium Leverage | 10.22 | 3.86 | 2.65 | 1.16 | 25.6% | 9.7% | 15.9% | .240 | 1.35 | .298 | 63.1% | 4.04 | 4.51 |
| 2026 | High Leverage | 5.06 | 5.06 | 1.00 | 1.69 | 11.5% | 11.5% | 0.0% | .318 | 1.88 | .316 | -69.8% | 6.10 | 6.49 |
| Season | Situational | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | Bases Empty | 11.54 | 4.10 | 2.82 | 1.12 | 28.4% | 10.1% | 18.3% | .244 | 1.43 | .328 | 100.0% | 3.70 | 4.18 |
| 2026 | Men on Base | 9.23 | 4.50 | 2.05 | 1.13 | 23.0% | 11.2% | 11.8% | .230 | 1.35 | .269 | 23.5% | 4.47 | 4.81 |
| 2026 | Men In Scoring | 9.12 | 4.01 | 2.27 | 1.46 | 23.4% | 10.3% | 13.1% | .225 | 1.26 | .242 | -37.9% | 4.64 | 4.74 |
| Season | Through Count | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | Through 3 - 0 | 6.75 | 87.75 | 0.08 | 0.00 | 5.3% | 68.4% | -63.2% | .333 | 11.25 | .400 | 93.3% | 30.85 | 34.25 |
| 2026 | Through 3 - 1 | 6.75 | 22.95 | 0.29 | 1.35 | 12.2% | 41.5% | -29.3% | .174 | 3.15 | .176 | 92.2% | 11.65 | 11.96 |
| 2026 | Through 3 - 2 | 11.77 | 13.85 | 0.85 | 0.00 | 24.3% | 28.6% | -4.3% | .255 | 2.46 | .375 | 84.8% | 5.33 | 6.38 |
| 2026 | Through 2 - 0 | 9.58 | 19.16 | 0.50 | 0.00 | 18.3% | 36.7% | -18.3% | .184 | 2.81 | .259 | 82.8% | 7.36 | 9.26 |
| 2026 | Through 1 - 0 | 9.44 | 7.60 | 1.24 | 0.79 | 21.7% | 17.5% | 4.2% | .256 | 1.83 | .326 | 71.2% | 4.93 | 5.87 |
| 2026 | Through 2 - 1 | 12.54 | 10.13 | 1.24 | 2.41 | 28.9% | 23.3% | 5.6% | .179 | 1.77 | .189 | 70.4% | 7.33 | 5.55 |
| 2026 | Through 1 - 1 | 13.27 | 4.19 | 3.17 | 1.40 | 33.7% | 10.7% | 23.1% | .226 | 1.32 | .321 | 73.0% | 3.88 | 3.50 |
| 2026 | Through 0 - 1 | 13.60 | 2.64 | 5.15 | 1.42 | 35.8% | 7.0% | 28.9% | .207 | 1.08 | .286 | 59.7% | 3.14 | 2.97 |
| 2026 | Through 2 - 2 | 15.72 | 5.13 | 3.07 | 0.34 | 41.1% | 13.4% | 27.7% | .179 | 1.22 | .320 | 55.6% | 1.81 | 2.29 |
| 2026 | Through 1 - 2 | 16.81 | 2.04 | 8.25 | 0.25 | 45.8% | 5.6% | 40.3% | .205 | 0.99 | .394 | 71.0% | 0.67 | 1.45 |
| 2026 | Through 0 - 2 | 16.02 | 0.92 | 17.50 | 0.92 | 43.2% | 2.5% | 40.7% | .231 | 1.02 | .381 | 58.1% | 1.17 | 1.30 |
| Season | SP / RP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | As Starter | 10.63 | 4.38 | 2.43 | 1.15 | 26.2% | 10.8% | 15.4% | .240 | 1.41 | .304 | 67.8% | 4.10 | 4.47 |
| 2026 | As Reliever | 4.50 | 0.00 | 1.00 | 0.00 | 14.3% | 0.0% | 14.3% | .143 | 0.50 | .167 | 100.0% | 2.10 | 4.36 |
| Season | Shifts | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | No Shift | 0.00 | 0.00 | 0.00 | 0.00 | 0.0% | 0.0% | 0.0% | .324 | 1.50 | .324 | 100.0% | 3.10 | 6.39 |
| 2026 | Shift - All | 0.00 | 0.00 | 0.00 | 0.00 | 0.0% | 0.0% | 0.0% | .306 | 1.34 | .296 | 100.0% | 3.10 | 6.26 |
| 2026 | Shift - Traditional | 0.00 | 0.00 | 0.00 | 0.00 | 0.0% | 0.0% | 0.0% | .308 | 1.39 | .306 | 100.0% | 3.10 | 6.28 |
| 2026 | Shift - Non Traditional | 0.00 | 0.00 | 0.00 | 0.00 | 0.0% | 0.0% | 0.0% | .273 | 0.82 | .188 | 100.0% | 3.10 | 5.98 |
| Season | TTO | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | 1st Through Order as SP | 12.10 | 3.72 | 3.25 | 1.16 | 30.4% | 9.4% | 21.1% | .235 | 1.32 | .323 | 85.7% | 3.72 | 3.80 |
| 2026 | 2nd Through Order as SP | 8.42 | 3.96 | 2.13 | 1.49 | 21.0% | 9.9% | 11.1% | .241 | 1.38 | .267 | 54.0% | 4.78 | 5.00 |
| 2026 | 3rd Through Order as SP | 12.71 | 7.94 | 1.60 | 0.00 | 28.6% | 17.9% | 10.7% | .250 | 1.85 | .379 | 54.5% | 3.19 | 5.05 |
| 2026 | 1st Through Order as RP | 4.50 | 0.00 | 1.00 | 0.00 | 14.3% | 0.0% | 14.3% | .143 | 0.50 | .167 | 100.0% | 2.10 | 4.36 |
| Season | Handedness | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | vs L | 9.31 | 5.40 | 1.72 | 0.93 | 22.9% | 13.3% | 9.6% | .230 | 1.47 | .280 | 80.3% | 4.30 | 5.17 |
| 2026 | vs R | 11.93 | 2.93 | 4.08 | 1.35 | 29.8% | 7.3% | 22.5% | .247 | 1.30 | .327 | 51.4% | 3.75 | 3.61 |
| Season | Home / Away | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | Home | 11.73 | 3.54 | 3.32 | 0.56 | 30.7% | 9.3% | 21.5% | .199 | 1.12 | .278 | 60.2% | 2.79 | 3.79 |
| 2026 | Away | 9.00 | 5.18 | 1.74 | 1.80 | 20.9% | 12.0% | 8.9% | .279 | 1.73 | .322 | 75.3% | 5.57 | 5.28 |
| 2026 | Home vs L | 11.84 | 5.55 | 2.13 | 0.00 | 30.2% | 14.2% | 16.0% | .195 | 1.32 | .293 | 75.8% | 2.44 | 4.24 |
| 2026 | Home vs R | 11.63 | 1.50 | 7.75 | 1.13 | 31.3% | 4.0% | 27.3% | .202 | 0.92 | .263 | 36.7% | 3.14 | 3.34 |
| 2026 | Away vs L | 6.75 | 5.25 | 1.29 | 1.88 | 16.1% | 12.5% | 3.6% | .260 | 1.63 | .270 | 84.8% | 6.18 | 6.12 |
| 2026 | Away vs R | 12.38 | 5.06 | 2.44 | 1.69 | 27.8% | 11.4% | 16.5% | .304 | 1.88 | .409 | 63.4% | 4.66 | 4.02 |
| Season | Monthly | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | Mar/Apr | 9.95 | 7.82 | 1.27 | 1.42 | 23.0% | 18.0% | 4.9% | .234 | 1.74 | .281 | 70.8% | 6.02 | 5.99 |
| 2026 | May | 11.85 | 2.63 | 4.50 | 1.32 | 28.3% | 6.3% | 22.0% | .289 | 1.50 | .372 | 49.5% | 3.36 | 3.61 |
| 2026 | Jun | 11.50 | 3.50 | 3.29 | 0.00 | 29.9% | 9.1% | 20.8% | .229 | 1.28 | .340 | 78.3% | 1.71 | 3.64 |
| 2026 | Jul | 8.62 | 2.87 | 3.00 | 1.72 | 23.8% | 7.9% | 15.9% | .161 | 0.89 | .158 | 93.2% | 5.01 | 4.45 |
| 2026 | Sept/Oct | 4.50 | 0.00 | 1.00 | 0.00 | 14.3% | 0.0% | 14.3% | .143 | 0.50 | .167 | 100.0% | 2.10 | 4.36 |
| 2026 | 1st Half | 10.71 | 4.37 | 2.45 | 0.98 | 26.4% | 10.8% | 15.6% | .239 | 1.41 | .309 | 67.0% | 3.85 | 4.41 |
| 2026 | 2nd Half | 7.50 | 3.00 | 2.50 | 3.00 | 20.0% | 8.0% | 12.0% | .217 | 1.17 | .188 | 95.2% | 6.77 | 5.20 |
| Season | Leverage | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | Low Leverage | 11.64 | 4.71 | 2.47 | 0.99 | 28.8% | 11.7% | 17.2% | .221 | 1.38 | .300 | 99.2% | 3.76 | 4.12 |
| 2026 | Medium Leverage | 10.22 | 3.86 | 2.65 | 1.16 | 25.6% | 9.7% | 15.9% | .240 | 1.35 | .298 | 63.1% | 4.04 | 4.51 |
| 2026 | High Leverage | 5.06 | 5.06 | 1.00 | 1.69 | 11.5% | 11.5% | 0.0% | .318 | 1.88 | .316 | -69.8% | 6.10 | 6.49 |
| Season | Situational | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | Bases Empty | 11.54 | 4.10 | 2.82 | 1.12 | 28.4% | 10.1% | 18.3% | .244 | 1.43 | .328 | 100.0% | 3.70 | 4.18 |
| 2026 | Men on Base | 9.23 | 4.50 | 2.05 | 1.13 | 23.0% | 11.2% | 11.8% | .230 | 1.35 | .269 | 23.5% | 4.47 | 4.81 |
| 2026 | Men In Scoring | 9.12 | 4.01 | 2.27 | 1.46 | 23.4% | 10.3% | 13.1% | .225 | 1.26 | .242 | -37.9% | 4.64 | 4.74 |
| Season | Through Count | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | Through 3 - 0 | 6.75 | 87.75 | 0.08 | 0.00 | 5.3% | 68.4% | -63.2% | .333 | 11.25 | .400 | 93.3% | 30.85 | 34.25 |
| 2026 | Through 3 - 1 | 6.75 | 22.95 | 0.29 | 1.35 | 12.2% | 41.5% | -29.3% | .174 | 3.15 | .176 | 92.2% | 11.65 | 11.96 |
| 2026 | Through 3 - 2 | 11.77 | 13.85 | 0.85 | 0.00 | 24.3% | 28.6% | -4.3% | .255 | 2.46 | .375 | 84.8% | 5.33 | 6.38 |
| 2026 | Through 2 - 0 | 9.58 | 19.16 | 0.50 | 0.00 | 18.3% | 36.7% | -18.3% | .184 | 2.81 | .259 | 82.8% | 7.36 | 9.26 |
| 2026 | Through 1 - 0 | 9.44 | 7.60 | 1.24 | 0.79 | 21.7% | 17.5% | 4.2% | .256 | 1.83 | .326 | 71.2% | 4.93 | 5.87 |
| 2026 | Through 2 - 1 | 12.54 | 10.13 | 1.24 | 2.41 | 28.9% | 23.3% | 5.6% | .179 | 1.77 | .189 | 70.4% | 7.33 | 5.55 |
| 2026 | Through 1 - 1 | 13.27 | 4.19 | 3.17 | 1.40 | 33.7% | 10.7% | 23.1% | .226 | 1.32 | .321 | 73.0% | 3.88 | 3.50 |
| 2026 | Through 0 - 1 | 13.60 | 2.64 | 5.15 | 1.42 | 35.8% | 7.0% | 28.9% | .207 | 1.08 | .286 | 59.7% | 3.14 | 2.97 |
| 2026 | Through 2 - 2 | 15.72 | 5.13 | 3.07 | 0.34 | 41.1% | 13.4% | 27.7% | .179 | 1.22 | .320 | 55.6% | 1.81 | 2.29 |
| 2026 | Through 1 - 2 | 16.81 | 2.04 | 8.25 | 0.25 | 45.8% | 5.6% | 40.3% | .205 | 0.99 | .394 | 71.0% | 0.67 | 1.45 |
| 2026 | Through 0 - 2 | 16.02 | 0.92 | 17.50 | 0.92 | 43.2% | 2.5% | 40.7% | .231 | 1.02 | .381 | 58.1% | 1.17 | 1.30 |
| Season | SP / RP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | As Starter | 10.63 | 4.38 | 2.43 | 1.15 | 26.2% | 10.8% | 15.4% | .240 | 1.41 | .304 | 67.8% | 4.10 | 4.47 |
| 2026 | As Reliever | 4.50 | 0.00 | 1.00 | 0.00 | 14.3% | 0.0% | 14.3% | .143 | 0.50 | .167 | 100.0% | 2.10 | 4.36 |
| Season | Shifts | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | No Shift | 0.00 | 0.00 | 0.00 | 0.00 | 0.0% | 0.0% | 0.0% | .324 | 1.50 | .324 | 100.0% | 3.10 | 6.39 |
| 2026 | Shift - All | 0.00 | 0.00 | 0.00 | 0.00 | 0.0% | 0.0% | 0.0% | .306 | 1.34 | .296 | 100.0% | 3.10 | 6.26 |
| 2026 | Shift - Traditional | 0.00 | 0.00 | 0.00 | 0.00 | 0.0% | 0.0% | 0.0% | .308 | 1.39 | .306 | 100.0% | 3.10 | 6.28 |
| 2026 | Shift - Non Traditional | 0.00 | 0.00 | 0.00 | 0.00 | 0.0% | 0.0% | 0.0% | .273 | 0.82 | .188 | 100.0% | 3.10 | 5.98 |
| Season | TTO | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | K-BB% | AVG | WHIP | BABIP | LOB% | FIP | xFIP |
| 2026 | 1st Through Order as SP | 12.10 | 3.72 | 3.25 | 1.16 | 30.4% | 9.4% | 21.1% | .235 | 1.32 | .323 | 85.7% | 3.72 | 3.80 |
| 2026 | 2nd Through Order as SP | 8.42 | 3.96 | 2.13 | 1.49 | 21.0% | 9.9% | 11.1% | .241 | 1.38 | .267 | 54.0% | 4.78 | 5.00 |
| 2026 | 3rd Through Order as SP | 12.71 | 7.94 | 1.60 | 0.00 | 28.6% | 17.9% | 10.7% | .250 | 1.85 | .379 | 54.5% | 3.19 | 5.05 |
| 2026 | 1st Through Order as RP | 4.50 | 0.00 | 1.00 | 0.00 | 14.3% | 0.0% | 14.3% | .143 | 0.50 | .167 | 100.0% | 2.10 | 4.36 |

