Jack Flaherty
DET Tigers • #9 • Starter
Active
| Position | Starter |
|---|---|
| Height | 6'4" |
| Weight | 225 |
| Age | 29 |
| Birthdate | Oct 15, 1995 |
| Birthplace | Burbank, CA, USA |
| School | Harvard-Westlake School (CA) |
Jack Flaherty Projections, Player Props and Stats
No Props Available. See our MLB projections page for more props.
Jack Flaherty Game Logs
| 2025 Game Log | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | Opp | Score | M/L | O/U | S/R | RES | IP | H | R | ER | SO | BB | HR | PIT | P/IP | G/F |
| Sep 17 |
vs 
CLE
|
L 4 - 0 | L -139 | U 8.0 | S | L | 5.0 | 3 | 1 | 1 | 4 | 3 | 0 | 95 | 19.0 | 0.67 |
| Sep 10 |
@ 
NYY
|
W 11 - 1 | W 149 | O 8.0 | S | W | 5.0 | 2 | 0 | 0 | 7 | 1 | 0 | 99 | 19.8 | 2.00 |
| Sep 5 |
vs 
CHW
|
L 7 - 5 | L -183 | O 8.5 | S | ND | 4.1 | 6 | 4 | 4 | 2 | 2 | 0 | 83 | 19.2 | 0.00 |
| Aug 30 |
@ 
KC
|
L 3 - 1 | L -114 | U 9.0 | S | ND | 5.2 | 4 | 1 | 1 | 4 | 2 | 1 | 101 | 17.8 | 2.33 |
| Aug 24 |
vs
KC
|
L 10 - 8 | L -146 | O 8.0 | S | L | 5.0 | 10 | 8 | 8 | 3 | 0 | 1 | 87 | 17.4 | 6.00 |
| Aug 18 |
vs 
HOU
|
W 10 - 0 | W -145 | O 8.0 | S | W | 7.0 | 3 | 0 | 0 | 9 | 1 | 0 | 90 | 12.9 | 3.00 |
| Aug 12 |
@
CHW
|
L 9 - 6 | L -161 | O 8.5 | S | L | 4.1 | 8 | 5 | 5 | 6 | 1 | 0 | 86 | 19.8 | 0.17 |
| Aug 6 |
vs 
MIN
|
L 9 - 4 | L -196 | O 9.0 | S | L | 4.2 | 8 | 6 | 5 | 3 | 1 | 1 | 82 | 17.6 | 1.20 |
| Aug 1 |
@ 
PHI
|
L 5 - 4 | L 134 | O 7.5 | S | ND | 6.0 | 2 | 1 | 1 | 7 | 3 | 0 | 95 | 15.8 | 3.00 |
| Jul 27 |
vs 
TOR
|
W 10 - 4 | W -113 | O 8.5 | S | W | 6.0 | 5 | 0 | 0 | 7 | 1 | 0 | 106 | 17.7 | 5.00 |
| Jul 21 |
@ 
PIT
|
L 3 - 0 | L 120 | U 7.0 | S | L | 3.0 | 6 | 3 | 3 | 6 | 3 | 0 | 78 | 26.0 | 1.00 |
| Jul 13 |
vs 
SEA
|
L 8 - 4 | L -108 | O 8.0 | S | ND | 5.0 | 4 | 2 | 2 | 7 | 2 | 2 | 93 | 18.6 | 3.00 |
| Jul 8 |
vs 
TB
|
W 4 - 2 | W -121 | U 8.0 | S | ND | 6.1 | 7 | 2 | 2 | 8 | 1 | 1 | 93 | 14.7 | 3.00 |
| Jul 2 |
@ 
WAS
|
L 9 - 4 | L -101 | O 8.0 | S | ND | 5.0 | 5 | 3 | 3 | 9 | 2 | 0 | 97 | 19.4 | 0.25 |
| Jun 25 |
vs 
ATH
|
L 3 - 0 | L -177 | U 8.5 | S | L | 6.0 | 5 | 3 | 3 | 7 | 4 | 1 | 90 | 15.0 | 0.80 |
| Jun 20 |
@
TB
|
L 14 - 8 | L -107 | O 8.0 | S | L | 2.1 | 6 | 8 | 8 | 3 | 3 | 1 | 74 | 31.7 | 0.00 |
| Jun 14 |
vs 
CIN
|
L 11 - 1 | L -181 | O 8.0 | S | L | 4.2 | 5 | 7 | 7 | 5 | 5 | 3 | 94 | 20.1 | 2.50 |
| Jun 8 |
vs 
CHC
|
W 4 - 0 | W -118 | U 8.5 | S | W | 6.0 | 2 | 0 | 0 | 9 | 3 | 0 | 94 | 15.7 | 0.67 |
| Jun 2 |
@
CHW
|
W 13 - 1 | W -242 | O 8.5 | S | W | 6.0 | 4 | 1 | 1 | 4 | 1 | 0 | 99 | 16.5 | 2.00 |
| May 27 |
vs 
SF
|
W 3 - 1 | W 106 | U 7.5 | S | W | 6.0 | 2 | 0 | 0 | 8 | 1 | 0 | 97 | 16.2 | 0.40 |
| May 22 |
vs
CLE
|
L 7 - 0 | L -122 | U 8.0 | S | L | 6.2 | 3 | 3 | 3 | 8 | 3 | 1 | 108 | 16.2 | 1.67 |
| May 16 |
@
TOR
|
W 5 - 4 | W -110 | P 9.0 | S | W | 5.2 | 5 | 2 | 2 | 6 | 1 | 1 | 90 | 15.9 | 0.60 |
| May 10 |
vs 
TEX
|
L 10 - 3 | L 111 | O 7.5 | S | L | 3.0 | 4 | 5 | 5 | 4 | 2 | 4 | 73 | 24.3 | 0.33 |
| May 3 |
@ 
LAA
|
L 5 - 2 | L -194 | U 8.5 | S | L | 5.2 | 8 | 5 | 4 | 8 | 1 | 0 | 91 | 16.1 | 1.00 |
| Apr 28 |
@
HOU
|
L 8 - 5 | L 108 | O 7.5 | S | L | 5.0 | 6 | 4 | 4 | 4 | 2 | 2 | 89 | 17.8 | 2.50 |
| Apr 22 |
vs 
SD
|
L 2 - 0 | L -136 | U 7.0 | S | L | 6.0 | 5 | 2 | 2 | 9 | 0 | 1 | 96 | 16.0 | 1.67 |
| Apr 15 |
@ 
MIL
|
L 5 - 0 | L -102 | U 8.0 | S | L | 4.2 | 5 | 3 | 3 | 4 | 2 | 1 | 98 | 21.0 | 1.67 |
| Apr 9 |
vs
NYY
|
L 4 - 3 | L 131 | P 7.0 | S | ND | 5.1 | 3 | 0 | 0 | 9 | 3 | 0 | 92 | 17.3 | 0.67 |
| Apr 4 |
vs
CHW
|
W 7 - 4 | W -227 | O 7.0 | S | W | 5.2 | 3 | 1 | 1 | 7 | 2 | 0 | 95 | 16.8 | 2.50 |
| Mar 28 |
@ 
LAD
|
L 8 - 5 F/10 | L 188 | O 7.5 | S | ND | 5.2 | 3 | 2 | 2 | 5 | 2 | 1 | 83 | 14.6 | 1.50 |
Show Full Season
Jack Flaherty's Pitching Statistics for Regular Season
| Season | Team | G | GS | W | L | SV | BS | ERA | CG | SHO | IP | H | R | ER | BB | SO | HR | WP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | DET | 30 | 30 | 8 | 14 | 0 | 0 | 4.60 | 0 | 0 | 156.7 | 142 | 82 | 80 | 58 | 182 | 22 | 4 |
| 2024 | LAD | 10 | 10 | 6 | 2 | 0 | 0 | 3.58 | 0 | 0 | 55.3 | 52 | 23 | 22 | 19 | 61 | 9 | 2 |
| 2024 | DET | 18 | 18 | 7 | 5 | 0 | 0 | 2.95 | 0 | 0 | 106.7 | 83 | 38 | 35 | 19 | 133 | 15 | 4 |
| 2023 | STL | 20 | 20 | 7 | 6 | 0 | 0 | 4.43 | 0 | 0 | 109.7 | 116 | 56 | 54 | 54 | 106 | 10 | 6 |
| 2023 | BAL | 9 | 7 | 1 | 3 | 0 | 0 | 6.75 | 0 | 0 | 34.7 | 46 | 27 | 26 | 10 | 42 | 7 | 2 |
| 2022 | STL | 9 | 8 | 2 | 1 | 0 | 0 | 4.25 | 0 | 0 | 36.0 | 36 | 18 | 17 | 22 | 33 | 4 | 0 |
| 2021 | STL | 17 | 15 | 9 | 2 | 0 | 0 | 3.22 | 0 | 0 | 78.3 | 57 | 35 | 28 | 25 | 85 | 12 | 4 |
| 2020 | STL | 9 | 9 | 4 | 3 | 0 | 0 | 4.91 | 0 | 0 | 40.3 | 33 | 22 | 22 | 16 | 49 | 6 | 1 |
| 2019 | STL | 33 | 33 | 11 | 8 | 0 | 0 | 2.75 | 0 | 0 | 196.3 | 135 | 62 | 60 | 53 | 231 | 25 | 6 |
| 2018 | STL | 28 | 28 | 8 | 9 | 0 | 0 | 3.34 | 0 | 0 | 151.0 | 108 | 59 | 56 | 56 | 182 | 20 | 6 |
| 2017 | STL | 6 | 5 | 0 | 2 | 0 | 0 | 6.33 | 0 | 0 | 21.3 | 23 | 15 | 15 | 9 | 20 | 4 | 0 |
Jack Flaherty's Pitching Statistics for Post Season
| Season | Team | G | GS | W | L | SV | BS | ERA | CG | SHO | IP | H | R | ER | BB | SO | HR | WP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | LAD | 5 | 5 | 1 | 2 | 0 | 0 | 7.36 | 0 | 0 | 22.0 | 24 | 18 | 18 | 9 | 15 | 6 | 0 |
| 2020 | STL | 1 | 1 | 0 | 1 | 0 | 0 | 1.50 | 0 | 0 | 6.0 | 6 | 1 | 1 | 2 | 8 | 0 | 0 |
| 2019 | STL | 3 | 3 | 1 | 2 | 0 | 0 | 4.24 | 0 | 0 | 17.0 | 17 | 8 | 8 | 4 | 22 | 2 | 3 |
Pitching Splits
| Overall | Last 3 | Away | Home | Day | Night | |
|---|---|---|---|---|---|---|
| W-L | 8-14 | 1-0 | 3-6 | 5-7 | 0-0 | 8-13 |
| ERA | 4.60 | 3.00 | 5.20 | 4.31 | 0.00 | 4.69 |
| IP | 156.7 | 15.0 | 64.0 | 87.7 | 0.0 | 151.7 |
| HITS | 142 | 12 | 64 | 75 | 0 | 139 |
| RUNS | 82 | 5 | 38 | 43 | 0 | 81 |
| ER | 80 | 5 | 37 | 42 | 0 | 79 |
| SO | 182 | 13 | 73 | 105 | 0 | 178 |
| BB | 58 | 5 | 24 | 31 | 0 | 55 |
| HR | 22 | 1 | 7 | 15 | 0 | 22 |
| OBP | .310 | .305 | .330 | .297 | .000 | .311 |
| WHIP | 1.28 | 1.13 | 1.38 | 1.21 | 0.00 | 1.28 |
| GB:FB | 1.37 | 3.20 | 1.23 | 1.62 | 0.00 | 1.43 |
| SB | 6 | 0 | 4 | 2 | 0 | 6 |
| CS | 2 | 1 | 1 | 1 | 0 | 2 |
| SB% | 3.00 | 0.00 | 4.00 | 2.00 | 0.00 | 3.00 |
| QS% | 0.33 | 0.00 | 0.15 | 0.50 | 0.00 | 0.34 |
