BASE KEEP
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Player File · SP LAD
Jack Flaherty
#9 · SP · Detroit Tigers · age 30 · B/T RR · 6' 4" / 225 lbs · MLB debut 2017 · Burbank, USA
Keep avg206.62
# Boards8
BK Value951
Spread190-264
Pitching
| Year | G | GS | W | L | SV | HLD | IP | K | BB | HR | ERA | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 19 | 19 | 3 | 8 | 0 | 0 | 86.1 | 102 | 42 | 11 | 4.59 | 1.41 | 10.63 |
| 2025 | 31 | 31 | 8 | 15 | 0 | 0 | 161.0 | 188 | 59 | 23 | 4.64 | 1.28 | 10.51 |
The 2026 line
Keep #217 · avg 206.62 · 8 boards · 4.59 ERA, 1.41 WHIP, 102 K in 86.1 IP
Baseball Savant
Starcast · spray · pitch
Percentile ranks (Starcast) plus the official Savant spray chart for bats and pitch chart for arms. Open the full Baseball Savant page.
Pitcher · 2026
xERA
33
xwOBA
33
FB Velo
22
FB Spin
39
CU Spin
22
K %
74
BB %
22
Whiff %
66
Chase %
18
Barrel %
34
Hard Hit %
5
EV
10
Max EV
16
Pitch chart
Minus
- Board spread 190-264 (74 ranks).
- 4.59 ERA in 86.1 IP.
Board graph
Spread 190-264 · 8 sources
Every Board
Spread 190-264 · 8 sources
| Source | Rank |
|---|---|
| TDG Points | 190 |
| ZiPS ROS | 196 |
| NFBC ADP | 198 |
| ATC ROS | 198 |
| Steamer ROS | 198 |
| Two-way mash | 198 |
| RotoGraphs Model | 211 |
| FantasyPros Dynasty ECR | 264 |
BK News
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