← Detroit Tigers
Jack Flaherty
Detroit Tigers
SP · #9 · Bats R · Throws R · 6'4" · 225 lb · Age 30 · 10 yrs in MLB
2026 grade
26.1
- Runs prevented
- +0.9
- IP · ERA
- 88.1 · 4.48
- K · BB
- 103 · 42
- Rank
- Not qualified
What the grade is made of
Runs each part saves or costs against an average pitcher facing the same batters. Contact counts a quarter for how it turned out, because over a season that's mostly the fielders and luck.
- Strikeouts103 vs 88 avg+4.2
- Walks41 vs 34 avg−2.3
- Contact allowed (how it turned out counts a quarter)231 vs 255 avg−2.1
- Home runs allowed11 vs 12 avg+1.4
- Hit batters7 vs 5 avg−0.8
- Parks pitched in+0.6
2026 game log: pitching
Game grades need 3 batters faced; starts are ranked against starts, relief outings against relief outings.
| Game | Result | Dec | IP | H | R | ER | BB | K | HR | PC | Grade |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sun, Sep 27vsPIT | L 2-4 | 2.0 | 1 | 0 | 0 | 0 | 1 | 0 | 19 | 95.0 | |
| Mon, Jul 20@CHC | W 8-6 | GS | 4.0 | 4 | 3 | 3 | 2 | 4 | 2 | 82 | 25.1 |
| Fri, Jul 10vsPHI | W 10-2 | W | 6.0 | 2 | 2 | 2 | 3 | 6 | 1 | 86 | 78.2 |
| Sat, Jul 4@TEX | W 3-0 | W | 5.2 | 3 | 0 | 0 | 0 | 5 | 0 | 88 | 88.2 |
| Sun, Jun 28vsHOU | L 5-7 | GS | 5.0 | 2 | 0 | 0 | 3 | 9 | 0 | 94 | 81.2 |
| Fri, Jun 12@CLE | L 2-3 | L | 3.0 | 3 | 2 | 2 | 1 | 1 | 0 | 63 | 42.8 |
| Sun, Jun 7vsSEA | W 5-4 | GS | 5.0 | 6 | 3 | 3 | 1 | 7 | 0 | 87 | 47.1 |
| Tue, Jun 2@TB | W 8-0 | W | 5.0 | 5 | 0 | 0 | 2 | 6 | 0 | 94 | 53.4 |
| Thu, May 28vsLAA | L 1-7 | L | 5.2 | 6 | 3 | 3 | 1 | 9 | 0 | 91 | 63.4 |
| Fri, May 22@BAL | L 4-7 | L | 3.1 | 8 | 6 | 3 | 0 | 7 | 2 | 78 | 5.5 |
| Sun, May 17vsTOR | L 1-4 | L | 6.0 | 5 | 4 | 4 | 0 | 4 | 1 | 90 | 65.6 |
| Tue, May 12@NYM | L 2-10 | L | 3.2 | 6 | 3 | 3 | 3 | 2 | 0 | 97 | 24.8 |
| Wed, May 6vsBOS | L 0-4 | L | 5.0 | 3 | 4 | 2 | 1 | 10 | 0 | 96 | 82.4 |
| Fri, May 1vsTEX | L 4-5 | GS | 3.2 | 5 | 4 | 4 | 3 | 4 | 1 | 91 | 24.8 |
| Sat, Apr 25@CIN | L 2-9 | L | 2.0 | 5 | 6 | 6 | 2 | 4 | 3 | 68 | 1.0 |
| Mon, Apr 20@BOS | L 6-8 | GS | 3.1 | 3 | 2 | 0 | 6 | 3 | 0 | 73 | 33.1 |
| Wed, Apr 15vsKC | W 2-1 | GS | 6.0 | 2 | 1 | 1 | 3 | 7 | 0 | 97 | 84.5 |
| Thu, Apr 9@MIN | L 1-3 | GS | 5.2 | 5 | 1 | 1 | 3 | 6 | 1 | 89 | 42.7 |
| Sat, Apr 4vsSTL | W 11-6 | GS | 4.0 | 3 | 5 | 5 | 4 | 6 | 0 | 86 | 23.8 |
| Sat, Mar 28@SD | L 0-3 | L | 4.1 | 4 | 3 | 2 | 4 | 2 | 0 | 89 | 50.0 |
Scores, box scores and play-by-play from ESPN. The run values and park factors behind the grades were worked out from Retrosheet's play-by-play: the information used here was obtained free of charge from and is copyrighted by Retrosheet. Interested parties may contact Retrosheet at www.retrosheet.org.