Jack Seppings
Milwaukee Brewers (AA)P
Age: 24
Bats/Throws: R/R
6'1" / 190
DOB: 7/3/2002
(24 years, 1 month, 24 days)
P
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Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring Training
| Season | Team | Level | Age | W | L | SV | G | GS | IP | divider | K/9 | BB/9 | HR/9 | BABIP | LOB% | GB% | HR/FB | divider | vFA | divider | ERA | xERA | FIP | xFIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | MIL | A | 21 | 1 | 0 | 0 | 3 | 0 | 4.0 | 4.50 | 6.75 | 0.00 | .357 | 40.0% | 35.7% | 0.0% | 9.00 | 6.33 | 7.68 | ||||||
| 2025 | MIL | A | 22 | 1 | 1 | 4 | 17 | 0 | 26.0 | 10.73 | 4.85 | 0.35 | .412 | 75.7% | 42.0% | 4.2% | 3.46 | 3.53 | 3.77 | ||||||
| 2025 | MIL | A+ | 22 | 2 | 1 | 1 | 20 | 0 | 35.1 | 6.37 | 6.37 | 0.51 | .324 | 75.6% | 48.6% | 7.7% | 3.82 | 4.85 | 4.84 | ||||||
| 2025 | MIL | MiLB | 22 | 3 | 2 | 5 | 37 | 0 | 61.1 | 8.22 | 5.72 | 0.44 | .358 | 75.6% | 46.0% | 6.0% | 3.67 | 4.29 | 4.39 | ||||||
| 2026 | MIL | ST | 23 | 0 | 0 | 0 | 2 | 0 | 1.1 | 6.75 | 13.50 | 0.00 | .400 | 75.0% | 40.0% | 0.0% | 6.75 | 6.65 | 8.05 | ||||||
| 2026 | Steamer | PROJ | 23 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.90 | 6.06 | 1.40 | .297 | 69.8% | 42.4% | 5.79 | 5.99 | 5.88 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 23 | 0 | 0 | 0 | 1 | 0 | 1.6 | 6.05 | 5.18 | 1.32 | .281 | 67.3% | 5.39 | 5.59 | 0.0 | ||||||||
| 2026 | MIL | A+ | 23 | 2 | 1 | 1 | 12 | 0 | 26.2 | 7.09 | 2.03 | 1.01 | .310 | 57.9% | 42.4% | 10.0% | 4.73 | 4.62 | 5.11 | ||||||
| 2026 | MIL | AA | 23 | 0 | 4 | 0 | 10 | 1 | 33.2 | 6.42 | 2.41 | 1.34 | .227 | 62.1% | 41.0% | 14.7% | 4.28 | 4.87 | 4.87 | ||||||
| 2026 | MIL | AAA | 23 | 2 | 0 | 0 | 2 | 0 | 7.1 | 6.14 | 3.68 | 0.00 | .250 | 100.0% | 40.0% | 0.0% | 0.00 | 2.70 | 3.38 | 5.61 | |||||
| 2026 | MIL | MiLB | 23 | 4 | 5 | 1 | 24 | 1 | 67.2 | 6.65 | 2.39 | 1.06 | .264 | 64.5% | 41.5% | 11.0% | 3.99 | 2.70 | 4.61 | 5.04 | |||||
| 2026 | Steamer | ROS | 23 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.80 | 4.16 | 1.46 | .294 | 70.1% | 5.27 | 5.42 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 23 | 0 | 0 | 0 | 1 | 1 | 2.4 | 4.82 | 3.95 | 1.40 | .284 | 62.4% | 5.66 | 5.56 | 0.0 |
| Season | Team | Level | Age | W | L | SV | G | GS | IP | divider | K/9 | BB/9 | HR/9 | BABIP | LOB% | GB% | HR/FB | divider | vFA | divider | ERA | xERA | FIP | xFIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | MIL | A | 21 | 1 | 0 | 0 | 3 | 0 | 4.0 | 4.50 | 6.75 | 0.00 | .357 | 40.0% | 35.7% | 0.0% | 9.00 | 6.33 | 7.68 | ||||||
| 2025 | MIL | A | 22 | 1 | 1 | 4 | 17 | 0 | 26.0 | 10.73 | 4.85 | 0.35 | .412 | 75.7% | 42.0% | 4.2% | 3.46 | 3.53 | 3.77 | ||||||
| 2025 | MIL | A+ | 22 | 2 | 1 | 1 | 20 | 0 | 35.1 | 6.37 | 6.37 | 0.51 | .324 | 75.6% | 48.6% | 7.7% | 3.82 | 4.85 | 4.84 | ||||||
| 2025 | MIL | MiLB | 22 | 3 | 2 | 5 | 37 | 0 | 61.1 | 8.22 | 5.72 | 0.44 | .358 | 75.6% | 46.0% | 6.0% | 3.67 | 4.29 | 4.39 | ||||||
| 2026 | MIL | ST | 23 | 0 | 0 | 0 | 2 | 0 | 1.1 | 6.75 | 13.50 | 0.00 | .400 | 75.0% | 40.0% | 0.0% | 6.75 | 6.65 | 8.05 | ||||||
| 2026 | Steamer | PROJ | 23 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.90 | 6.06 | 1.40 | .297 | 69.8% | 42.4% | 5.79 | 5.99 | 5.88 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 23 | 0 | 0 | 0 | 1 | 0 | 1.6 | 6.05 | 5.18 | 1.32 | .281 | 67.3% | 5.39 | 5.59 | 0.0 | ||||||||
| 2026 | MIL | A+ | 23 | 2 | 1 | 1 | 12 | 0 | 26.2 | 7.09 | 2.03 | 1.01 | .310 | 57.9% | 42.4% | 10.0% | 4.73 | 4.62 | 5.11 | ||||||
| 2026 | MIL | AA | 23 | 0 | 4 | 0 | 10 | 1 | 33.2 | 6.42 | 2.41 | 1.34 | .227 | 62.1% | 41.0% | 14.7% | 4.28 | 4.87 | 4.87 | ||||||
| 2026 | MIL | AAA | 23 | 2 | 0 | 0 | 2 | 0 | 7.1 | 6.14 | 3.68 | 0.00 | .250 | 100.0% | 40.0% | 0.0% | 0.00 | 2.70 | 3.38 | 5.61 | |||||
| 2026 | MIL | MiLB | 23 | 4 | 5 | 1 | 24 | 1 | 67.2 | 6.65 | 2.39 | 1.06 | .264 | 64.5% | 41.5% | 11.0% | 3.99 | 2.70 | 4.61 | 5.04 | |||||
| 2026 | Steamer | ROS | 23 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.80 | 4.16 | 1.46 | .294 | 70.1% | 5.27 | 5.42 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 23 | 0 | 0 | 0 | 1 | 1 | 2.4 | 4.82 | 3.95 | 1.40 | .284 | 62.4% | 5.66 | 5.56 | 0.0 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring Training
| Season | Team | Level | W | L | ERA | G | GS | QS | CG | ShO | SV | HLD | BS | IP | TBF | H | R | ER | HR | BB | IBB | HBP | WP | BK | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | MIL | A | 1 | 0 | 9.00 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 4.0 | 21 | 5 | 6 | 4 | 0 | 3 | 0 | 2 | 1 | 0 | 2 | |
| 2025 | MIL | A | 1 | 1 | 3.46 | 17 | 0 | 0 | 0 | 4 | 1 | 1 | 26.0 | 116 | 29 | 12 | 10 | 1 | 14 | 0 | 2 | 1 | 1 | 31 | |
| 2025 | MIL | A+ | 2 | 1 | 3.82 | 20 | 0 | 0 | 0 | 1 | 0 | 1 | 35.1 | 157 | 36 | 17 | 15 | 2 | 25 | 1 | 0 | 2 | 0 | 25 | |
| 2025 | MIL | MiLB | 3 | 2 | 3.67 | 37 | 0 | 0 | 0 | 5 | 1 | 2 | 61.1 | 273 | 65 | 29 | 25 | 3 | 39 | 1 | 2 | 3 | 1 | 56 | |
| 2026 | MIL | ST | 0 | 0 | 6.75 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1.1 | 8 | 2 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | |
| 2026 | Steamer | PROJ | 0 | 0 | 5.79 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 5.39 | 1 | 0 | 0 | 0 | 0 | 1.6 | 7 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2026 | MIL | A+ | 2 | 1 | 4.73 | 12 | 0 | 0 | 0 | 1 | 2 | 0 | 26.2 | 116 | 29 | 18 | 14 | 3 | 6 | 0 | 2 | 2 | 0 | 21 | |
| 2026 | MIL | AA | 0 | 4 | 4.28 | 10 | 1 | 0 | 0 | 0 | 1 | 1 | 33.2 | 135 | 27 | 18 | 16 | 5 | 9 | 0 | 0 | 0 | 0 | 24 | |
| 2026 | MIL | AAA | 2 | 0 | 0.00 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 28 | 5 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 5 | |
| 2026 | MIL | MiLB | 4 | 5 | 3.99 | 24 | 1 | 0 | 0 | 1 | 3 | 1 | 67.2 | 279 | 61 | 36 | 30 | 8 | 18 | 0 | 2 | 2 | 0 | 50 | |
| 2026 | Steamer | ROS | 0 | 0 | 5.27 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 5.66 | 1 | 1 | 0 | 0 | 0 | 2.4 | 10 | 2 | 2 | 1 | 0 | 1 | 0 | 0 | 1 |
| Season | Team | Level | W | L | ERA | G | GS | QS | CG | ShO | SV | HLD | BS | IP | TBF | H | R | ER | HR | BB | IBB | HBP | WP | BK | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | MIL | A | 1 | 0 | 9.00 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 4.0 | 21 | 5 | 6 | 4 | 0 | 3 | 0 | 2 | 1 | 0 | 2 | |
| 2025 | MIL | A | 1 | 1 | 3.46 | 17 | 0 | 0 | 0 | 4 | 1 | 1 | 26.0 | 116 | 29 | 12 | 10 | 1 | 14 | 0 | 2 | 1 | 1 | 31 | |
| 2025 | MIL | A+ | 2 | 1 | 3.82 | 20 | 0 | 0 | 0 | 1 | 0 | 1 | 35.1 | 157 | 36 | 17 | 15 | 2 | 25 | 1 | 0 | 2 | 0 | 25 | |
| 2025 | MIL | MiLB | 3 | 2 | 3.67 | 37 | 0 | 0 | 0 | 5 | 1 | 2 | 61.1 | 273 | 65 | 29 | 25 | 3 | 39 | 1 | 2 | 3 | 1 | 56 | |
| 2026 | MIL | ST | 0 | 0 | 6.75 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1.1 | 8 | 2 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | |
| 2026 | Steamer | PROJ | 0 | 0 | 5.79 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 5.39 | 1 | 0 | 0 | 0 | 0 | 1.6 | 7 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2026 | MIL | A+ | 2 | 1 | 4.73 | 12 | 0 | 0 | 0 | 1 | 2 | 0 | 26.2 | 116 | 29 | 18 | 14 | 3 | 6 | 0 | 2 | 2 | 0 | 21 | |
| 2026 | MIL | AA | 0 | 4 | 4.28 | 10 | 1 | 0 | 0 | 0 | 1 | 1 | 33.2 | 135 | 27 | 18 | 16 | 5 | 9 | 0 | 0 | 0 | 0 | 24 | |
| 2026 | MIL | AAA | 2 | 0 | 0.00 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 28 | 5 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 5 | |
| 2026 | MIL | MiLB | 4 | 5 | 3.99 | 24 | 1 | 0 | 0 | 1 | 3 | 1 | 67.2 | 279 | 61 | 36 | 30 | 8 | 18 | 0 | 2 | 2 | 0 | 50 | |
| 2026 | Steamer | ROS | 0 | 0 | 5.27 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 5.66 | 1 | 1 | 0 | 0 | 0 | 2.4 | 10 | 2 | 2 | 1 | 0 | 1 | 0 | 0 | 1 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingAverages
| Season | Team | Level | K/9 | BB/9 | K/BB | HR/9 | divider | K% | BB% | K-BB% | divider | AVG | WHIP | BABIP | LOB% | divider | ERA- | FIP- | divider | FIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | MIL | A | 4.50 | 6.75 | 0.67 | 0.00 | 9.5% | 14.3% | -4.8% | .313 | 2.00 | .357 | 40.0% | 226 | 164 | 6.33 | ||||
| 2025 | MIL | A | 10.73 | 4.85 | 2.21 | 0.35 | 26.7% | 12.1% | 14.7% | .290 | 1.65 | .412 | 75.7% | 83 | 88 | 3.53 | ||||
| 2025 | MIL | A+ | 6.37 | 6.37 | 1.00 | 0.51 | 15.9% | 15.9% | 0.0% | .273 | 1.73 | .324 | 75.6% | 92 | 117 | 4.85 | ||||
| 2025 | MIL | MiLB | 8.22 | 5.72 | 1.44 | 0.44 | 20.5% | 14.3% | 6.2% | .280 | 1.70 | .358 | 75.6% | 88 | 105 | 4.29 | ||||
| 2026 | MIL | ST | 6.75 | 13.50 | 0.50 | 0.00 | 12.5% | 25.0% | -12.5% | .333 | 3.00 | .400 | 75.0% | 131 | 128 | 6.65 | ||||
| 2026 | Steamer | PROJ | 5.90 | 6.06 | 0.98 | 1.40 | 14.0% | 14.3% | -0.4% | .275 | 1.77 | .297 | 69.8% | 5.99 | ||||||
| 2026 | OOPSY | PROJ | 6.05 | 5.18 | 1.17 | 1.32 | 14.9% | 12.8% | 2.1% | .259 | 1.58 | .281 | 67.3% | 5.59 | ||||||
| 2026 | MIL | A+ | 7.09 | 2.03 | 3.50 | 1.01 | 18.1% | 5.2% | 12.9% | .269 | 1.31 | .310 | 57.9% | 89 | 87 | 4.62 | ||||
| 2026 | MIL | AA | 6.42 | 2.41 | 2.67 | 1.34 | 17.8% | 6.7% | 11.1% | .214 | 1.07 | .227 | 62.1% | 86 | 96 | 4.87 | ||||
| 2026 | MIL | AAA | 6.14 | 3.68 | 1.67 | 0.00 | 17.9% | 10.7% | 7.1% | .200 | 1.09 | .250 | 100.0% | 0 | 72 | 3.38 | ||||
| 2026 | MIL | MiLB | 6.65 | 2.39 | 2.78 | 1.06 | 17.9% | 6.5% | 11.5% | .236 | 1.17 | .264 | 64.5% | 78 | 90 | 4.61 | ||||
| 2026 | Steamer | ROS | 5.80 | 4.16 | 1.39 | 1.46 | 14.3% | 10.3% | 4.0% | .275 | 1.56 | .294 | 70.1% | 5.42 | ||||||
| 2026 | OOPSY | ROS | 4.82 | 3.95 | 1.22 | 1.40 | 12.6% | 10.3% | 2.3% | .273 | 1.46 | .284 | 62.4% | 5.56 |
| Season | Team | Level | K/9 | BB/9 | K/BB | HR/9 | divider | K% | BB% | K-BB% | divider | AVG | WHIP | BABIP | LOB% | divider | ERA- | FIP- | divider | FIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | MIL | A | 4.50 | 6.75 | 0.67 | 0.00 | 9.5% | 14.3% | -4.8% | .313 | 2.00 | .357 | 40.0% | 226 | 164 | 6.33 | ||||
| 2025 | MIL | A | 10.73 | 4.85 | 2.21 | 0.35 | 26.7% | 12.1% | 14.7% | .290 | 1.65 | .412 | 75.7% | 83 | 88 | 3.53 | ||||
| 2025 | MIL | A+ | 6.37 | 6.37 | 1.00 | 0.51 | 15.9% | 15.9% | 0.0% | .273 | 1.73 | .324 | 75.6% | 92 | 117 | 4.85 | ||||
| 2025 | MIL | MiLB | 8.22 | 5.72 | 1.44 | 0.44 | 20.5% | 14.3% | 6.2% | .280 | 1.70 | .358 | 75.6% | 88 | 105 | 4.29 | ||||
| 2026 | MIL | ST | 6.75 | 13.50 | 0.50 | 0.00 | 12.5% | 25.0% | -12.5% | .333 | 3.00 | .400 | 75.0% | 131 | 128 | 6.65 | ||||
| 2026 | Steamer | PROJ | 5.90 | 6.06 | 0.98 | 1.40 | 14.0% | 14.3% | -0.4% | .275 | 1.77 | .297 | 69.8% | 5.99 | ||||||
| 2026 | OOPSY | PROJ | 6.05 | 5.18 | 1.17 | 1.32 | 14.9% | 12.8% | 2.1% | .259 | 1.58 | .281 | 67.3% | 5.59 | ||||||
| 2026 | MIL | A+ | 7.09 | 2.03 | 3.50 | 1.01 | 18.1% | 5.2% | 12.9% | .269 | 1.31 | .310 | 57.9% | 89 | 87 | 4.62 | ||||
| 2026 | MIL | AA | 6.42 | 2.41 | 2.67 | 1.34 | 17.8% | 6.7% | 11.1% | .214 | 1.07 | .227 | 62.1% | 86 | 96 | 4.87 | ||||
| 2026 | MIL | AAA | 6.14 | 3.68 | 1.67 | 0.00 | 17.9% | 10.7% | 7.1% | .200 | 1.09 | .250 | 100.0% | 0 | 72 | 3.38 | ||||
| 2026 | MIL | MiLB | 6.65 | 2.39 | 2.78 | 1.06 | 17.9% | 6.5% | 11.5% | .236 | 1.17 | .264 | 64.5% | 78 | 90 | 4.61 | ||||
| 2026 | Steamer | ROS | 5.80 | 4.16 | 1.39 | 1.46 | 14.3% | 10.3% | 4.0% | .275 | 1.56 | .294 | 70.1% | 5.42 | ||||||
| 2026 | OOPSY | ROS | 4.82 | 3.95 | 1.22 | 1.40 | 12.6% | 10.3% | 2.3% | .273 | 1.46 | .284 | 62.4% | 5.56 |
