Season pitcher profile · 2026
Jack Flaherty
DET · 19 GS · 88.1 IP · 3-8
Season line through September 27, 2026
ERA4.48
WHIP1.39
K103
K %26.0%
BB %10.6%
K-BB %15.4%
HR11
MalliScore
Average outing
39.90–100
MLB median start 44.4Elite starts 0
Last 544.0
Best57.3
Dominance49.3
Run prevention49.6
MalliScore by start
19 qualified starts
Move across the chart for each outing.
Start5-start averageMLB median start
Pitch mix
Usage by outing
FFSLKCSICH
Batter handedness
Results by side
vs RHB.321 xwOBA
29.8% K7.3% BB6 HR
178 PA
vs LHB.322 xwOBA
22.9% K13.3% BB5 HR
218 PA
Arsenal
Shape and results by pitch
Season-to-date Statcast
| Pitch | Use | Velo | Spin | H break | V break | CSW | Chase | Whiff | xwOBA | Hard hit |
|---|---|---|---|---|---|---|---|---|---|---|
| FF4-Seam Fastball | 49.1% 816 | 92.7 | 2,256 | -5.8" | 16.1" | 29.4% | 23.5% | 20.7% | .330 | 53.3% |
| SLSlider | 24.2% 403 | 85.0 | 2,439 | 5.8" | 3.4" | 29.8% | 29.8% | 32.1% | .329 | 44.1% |
| KCKnuckle Curve | 19.4% 322 | 78.1 | 2,402 | 10.9" | -9.3" | 28.0% | 34.7% | 37.6% | .302 | 33.3% |
| SISinker | 4.2% 70 | 91.0 | 2,066 | -13.6" | 9.5" | 18.6% | 21.3% | 20.0% | .252 | 30.8% |
| CHChangeup | 2.8% 47 | 85.7 | 1,827 | -14.5" | 8.3" | 8.5% | 20.9% | 25.0% | .290 | 0.0% |
Velocity
FF by outing
FF season average 92.7 mph
Recent starts
Game log
Most recent 12
| Date | Opp | IP | ER | K | BB | Malli |
|---|---|---|---|---|---|---|
| Jul 20 | CHC | 4.0 | 3 | 4 | 2 | 29.4 |
| Jul 10 | PHI | 6.0 | 2 | 6 | 3 | 52.9 |
| Jul 4 | TEX | 5.2 | 0 | 5 | 0 | 56.5 |
| Jun 28 | HOU | 5.0 | 0 | 9 | 3 | 51.5 |
| Jun 12 | CLE | 3.0 | 2 | 1 | 1 | 29.9 |
| Jun 7 | SEA | 5.0 | 3 | 7 | 1 | 43.2 |
| Jun 2 | TB | 5.0 | 0 | 6 | 2 | 47.6 |
| May 28 | LAA | 5.2 | 3 | 9 | 1 | 55.2 |
| May 22 | BAL | 3.1 | 3 | 7 | 0 | 28.6 |
| May 17 | TOR | 6.0 | 4 | 4 | 0 | 48.5 |
| May 12 | NYM | 3.2 | 3 | 2 | 3 | 27.2 |
| May 6 | BOS | 5.0 | 2 | 10 | 1 | 50.0 |