Nick Altermatt
Chicago White Sox (AAA)P
Age: 26
Bats/Throws: R/R
6'0" / 225
DOB: 9/28/1999
(26 years, 11 months, 3 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 | CHW | A | 24 | 3 | 3 | 2 | 30 | 0 | 36.0 | 9.25 | 3.00 | 0.50 | .284 | 74.6% | 52.7% | 6.9% | 2.75 | 3.41 | 3.42 | ||||||
| 2024 | CHW | A+ | 24 | 1 | 0 | 1 | 8 | 0 | 13.0 | 13.15 | 3.46 | 0.00 | .308 | 69.2% | 42.3% | 0.0% | 2.77 | 1.79 | 2.47 | ||||||
| 2024 | CHW | MiLB | 24 | 4 | 3 | 3 | 38 | 0 | 49.0 | 10.29 | 3.12 | 0.37 | .289 | 73.3% | 50.4% | 5.6% | 2.76 | 2.98 | 3.17 | ||||||
| 2025 | CHW | CPX | 25 | 1 | 0 | 0 | 2 | 0 | 3.0 | 21.00 | 0.00 | 0.00 | .000 | 100.0% | 0.0% | 0.0% | 0.00 | -0.17 | 0.13 | ||||||
| 2025 | CHW | A | 25 | 0 | 0 | 1 | 2 | 0 | 2.2 | 3.38 | 0.00 | 0.00 | .429 | 100.0% | 57.1% | 0.0% | 0.00 | 2.82 | 3.12 | ||||||
| 2025 | CHW | A+ | 25 | 2 | 0 | 1 | 24 | 0 | 38.1 | 10.33 | 1.17 | 0.23 | .356 | 65.7% | 46.5% | 3.2% | 2.35 | 1.91 | 2.44 | ||||||
| 2025 | CHW | MiLB | 25 | 3 | 0 | 2 | 28 | 0 | 44.0 | 10.64 | 1.02 | 0.20 | .354 | 68.0% | 46.3% | 3.0% | 2.05 | 1.82 | 2.32 | ||||||
| 2026 | CHW | ST | 26 | 0 | 0 | 0 | 1 | 0 | 0.1 | 27.00 | 0.00 | 27.00 | .000 | 100.0% | 0.0% | 100.0% | 27.00 | 36.65 | 3.26 | ||||||
| 2026 | Steamer | PROJ | 26 | 0 | 0 | 0 | 1 | 0 | 1.0 | 6.51 | 4.44 | 1.32 | .296 | 71.4% | 43.4% | 4.95 | 5.20 | 5.12 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 26 | 0 | 0 | 0 | 1 | 0 | 1.4 | 6.50 | 3.25 | 1.15 | .288 | 64.9% | 4.66 | 4.57 | 0.0 | ||||||||
| 2026 | CHW | AA | 26 | 1 | 1 | 1 | 30 | 0 | 41.1 | 9.58 | 3.27 | 1.09 | .296 | 80.9% | 34.3% | 12.2% | 2.61 | 4.25 | 4.56 | ||||||
| 2026 | CHW | AAA | 26 | 0 | 0 | 0 | 6 | 0 | 10.0 | 7.20 | 2.70 | 0.00 | .192 | 75.0% | 42.3% | 0.0% | 0.90 | 3.85 | 2.81 | 4.27 | |||||
| 2026 | CHW | MiLB | 26 | 1 | 1 | 1 | 36 | 0 | 51.1 | 9.12 | 3.16 | 0.88 | .276 | 80.0% | 35.8% | 10.2% | 2.28 | 3.85 | 3.97 | 4.50 | |||||
| 2026 | Steamer | ROS | 26 | 0 | 0 | 0 | 1 | 0 | 1.0 | 7.06 | 3.45 | 1.29 | .293 | 72.1% | 4.49 | 4.65 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 26 | 0 | 0 | 0 | 1 | 0 | 1.4 | 6.62 | 3.33 | 1.20 | .286 | 65.8% | 4.68 | 4.65 | 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 | CHW | A | 24 | 3 | 3 | 2 | 30 | 0 | 36.0 | 9.25 | 3.00 | 0.50 | .284 | 74.6% | 52.7% | 6.9% | 2.75 | 3.41 | 3.42 | ||||||
| 2024 | CHW | A+ | 24 | 1 | 0 | 1 | 8 | 0 | 13.0 | 13.15 | 3.46 | 0.00 | .308 | 69.2% | 42.3% | 0.0% | 2.77 | 1.79 | 2.47 | ||||||
| 2024 | CHW | MiLB | 24 | 4 | 3 | 3 | 38 | 0 | 49.0 | 10.29 | 3.12 | 0.37 | .289 | 73.3% | 50.4% | 5.6% | 2.76 | 2.98 | 3.17 | ||||||
| 2025 | CHW | CPX | 25 | 1 | 0 | 0 | 2 | 0 | 3.0 | 21.00 | 0.00 | 0.00 | .000 | 100.0% | 0.0% | 0.0% | 0.00 | -0.17 | 0.13 | ||||||
| 2025 | CHW | A | 25 | 0 | 0 | 1 | 2 | 0 | 2.2 | 3.38 | 0.00 | 0.00 | .429 | 100.0% | 57.1% | 0.0% | 0.00 | 2.82 | 3.12 | ||||||
| 2025 | CHW | A+ | 25 | 2 | 0 | 1 | 24 | 0 | 38.1 | 10.33 | 1.17 | 0.23 | .356 | 65.7% | 46.5% | 3.2% | 2.35 | 1.91 | 2.44 | ||||||
| 2025 | CHW | MiLB | 25 | 3 | 0 | 2 | 28 | 0 | 44.0 | 10.64 | 1.02 | 0.20 | .354 | 68.0% | 46.3% | 3.0% | 2.05 | 1.82 | 2.32 | ||||||
| 2026 | CHW | ST | 26 | 0 | 0 | 0 | 1 | 0 | 0.1 | 27.00 | 0.00 | 27.00 | .000 | 100.0% | 0.0% | 100.0% | 27.00 | 36.65 | 3.26 | ||||||
| 2026 | Steamer | PROJ | 26 | 0 | 0 | 0 | 1 | 0 | 1.0 | 6.51 | 4.44 | 1.32 | .296 | 71.4% | 43.4% | 4.95 | 5.20 | 5.12 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 26 | 0 | 0 | 0 | 1 | 0 | 1.4 | 6.50 | 3.25 | 1.15 | .288 | 64.9% | 4.66 | 4.57 | 0.0 | ||||||||
| 2026 | CHW | AA | 26 | 1 | 1 | 1 | 30 | 0 | 41.1 | 9.58 | 3.27 | 1.09 | .296 | 80.9% | 34.3% | 12.2% | 2.61 | 4.25 | 4.56 | ||||||
| 2026 | CHW | AAA | 26 | 0 | 0 | 0 | 6 | 0 | 10.0 | 7.20 | 2.70 | 0.00 | .192 | 75.0% | 42.3% | 0.0% | 0.90 | 3.85 | 2.81 | 4.27 | |||||
| 2026 | CHW | MiLB | 26 | 1 | 1 | 1 | 36 | 0 | 51.1 | 9.12 | 3.16 | 0.88 | .276 | 80.0% | 35.8% | 10.2% | 2.28 | 3.85 | 3.97 | 4.50 | |||||
| 2026 | Steamer | ROS | 26 | 0 | 0 | 0 | 1 | 0 | 1.0 | 7.06 | 3.45 | 1.29 | .293 | 72.1% | 4.49 | 4.65 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 26 | 0 | 0 | 0 | 1 | 0 | 1.4 | 6.62 | 3.33 | 1.20 | .286 | 65.8% | 4.68 | 4.65 | 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 | CHW | A | 3 | 3 | 2.75 | 30 | 0 | 0 | 0 | 2 | 7 | 3 | 36.0 | 148 | 29 | 13 | 11 | 2 | 12 | 1 | 2 | 1 | 1 | 37 | |
| 2024 | CHW | A+ | 1 | 0 | 2.77 | 8 | 0 | 0 | 0 | 1 | 1 | 0 | 13.0 | 50 | 8 | 4 | 4 | 0 | 5 | 0 | 0 | 1 | 0 | 19 | |
| 2024 | CHW | MiLB | 4 | 3 | 2.76 | 38 | 0 | 0 | 0 | 3 | 8 | 3 | 49.0 | 198 | 37 | 17 | 15 | 2 | 17 | 1 | 2 | 2 | 1 | 56 | |
| 2025 | CHW | CPX | 1 | 0 | 0.00 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3.0 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | |
| 2025 | CHW | A | 0 | 0 | 0.00 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 2.2 | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | |
| 2025 | CHW | A+ | 2 | 0 | 2.35 | 24 | 0 | 0 | 0 | 1 | 3 | 1 | 38.1 | 155 | 38 | 16 | 10 | 1 | 5 | 0 | 1 | 1 | 2 | 44 | |
| 2025 | CHW | MiLB | 3 | 0 | 2.05 | 28 | 0 | 0 | 0 | 2 | 3 | 2 | 44.0 | 172 | 41 | 16 | 10 | 1 | 5 | 0 | 1 | 1 | 2 | 52 | |
| 2026 | CHW | ST | 0 | 0 | 27.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.1 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | |
| 2026 | Steamer | PROJ | 0 | 0 | 4.95 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 4.66 | 1 | 0 | 0 | 0 | 0 | 1.4 | 6 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2026 | CHW | AA | 1 | 1 | 2.61 | 30 | 0 | 0 | 0 | 1 | 1 | 1 | 41.1 | 174 | 37 | 16 | 12 | 5 | 15 | 0 | 2 | 0 | 0 | 44 | |
| 2026 | CHW | AAA | 0 | 0 | 0.90 | 6 | 0 | 0 | 0 | 0 | 1 | 0 | 10.0 | 37 | 5 | 2 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 8 | |
| 2026 | CHW | MiLB | 1 | 1 | 2.28 | 36 | 0 | 0 | 0 | 1 | 2 | 1 | 51.1 | 211 | 42 | 18 | 13 | 5 | 18 | 0 | 2 | 0 | 0 | 52 | |
| 2026 | Steamer | ROS | 0 | 0 | 4.49 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 4.68 | 1 | 0 | 0 | 0 | 0 | 1.4 | 6 | 1 | 1 | 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 | CHW | A | 3 | 3 | 2.75 | 30 | 0 | 0 | 0 | 2 | 7 | 3 | 36.0 | 148 | 29 | 13 | 11 | 2 | 12 | 1 | 2 | 1 | 1 | 37 | |
| 2024 | CHW | A+ | 1 | 0 | 2.77 | 8 | 0 | 0 | 0 | 1 | 1 | 0 | 13.0 | 50 | 8 | 4 | 4 | 0 | 5 | 0 | 0 | 1 | 0 | 19 | |
| 2024 | CHW | MiLB | 4 | 3 | 2.76 | 38 | 0 | 0 | 0 | 3 | 8 | 3 | 49.0 | 198 | 37 | 17 | 15 | 2 | 17 | 1 | 2 | 2 | 1 | 56 | |
| 2025 | CHW | CPX | 1 | 0 | 0.00 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3.0 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | |
| 2025 | CHW | A | 0 | 0 | 0.00 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 2.2 | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | |
| 2025 | CHW | A+ | 2 | 0 | 2.35 | 24 | 0 | 0 | 0 | 1 | 3 | 1 | 38.1 | 155 | 38 | 16 | 10 | 1 | 5 | 0 | 1 | 1 | 2 | 44 | |
| 2025 | CHW | MiLB | 3 | 0 | 2.05 | 28 | 0 | 0 | 0 | 2 | 3 | 2 | 44.0 | 172 | 41 | 16 | 10 | 1 | 5 | 0 | 1 | 1 | 2 | 52 | |
| 2026 | CHW | ST | 0 | 0 | 27.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.1 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | |
| 2026 | Steamer | PROJ | 0 | 0 | 4.95 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 4.66 | 1 | 0 | 0 | 0 | 0 | 1.4 | 6 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||||
| 2026 | CHW | AA | 1 | 1 | 2.61 | 30 | 0 | 0 | 0 | 1 | 1 | 1 | 41.1 | 174 | 37 | 16 | 12 | 5 | 15 | 0 | 2 | 0 | 0 | 44 | |
| 2026 | CHW | AAA | 0 | 0 | 0.90 | 6 | 0 | 0 | 0 | 0 | 1 | 0 | 10.0 | 37 | 5 | 2 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 8 | |
| 2026 | CHW | MiLB | 1 | 1 | 2.28 | 36 | 0 | 0 | 0 | 1 | 2 | 1 | 51.1 | 211 | 42 | 18 | 13 | 5 | 18 | 0 | 2 | 0 | 0 | 52 | |
| 2026 | Steamer | ROS | 0 | 0 | 4.49 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 4.68 | 1 | 0 | 0 | 0 | 0 | 1.4 | 6 | 1 | 1 | 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 | CHW | A | 9.25 | 3.00 | 3.08 | 0.50 | 25.0% | 8.1% | 16.9% | .216 | 1.14 | .284 | 74.6% | 70 | 88 | 3.41 | ||||
| 2024 | CHW | A+ | 13.15 | 3.46 | 3.80 | 0.00 | 38.0% | 10.0% | 28.0% | .178 | 1.00 | .308 | 69.2% | 69 | 44 | 1.79 | ||||
| 2024 | CHW | MiLB | 10.29 | 3.12 | 3.29 | 0.37 | 28.3% | 8.6% | 19.7% | .207 | 1.10 | .289 | 73.3% | 70 | 77 | 2.98 | ||||
| 2025 | CHW | CPX | 21.00 | 0.00 | 7.00 | 0.00 | 77.8% | 0.0% | 77.8% | .000 | 0.00 | .000 | 100.0% | 0 | -3 | -0.17 | ||||
| 2025 | CHW | A | 3.38 | 0.00 | 1.00 | 0.00 | 12.5% | 0.0% | 12.5% | .375 | 1.13 | .429 | 100.0% | 0 | 70 | 2.82 | ||||
| 2025 | CHW | A+ | 10.33 | 1.17 | 8.80 | 0.23 | 28.4% | 3.2% | 25.2% | .255 | 1.12 | .356 | 65.7% | 61 | 50 | 1.91 | ||||
| 2025 | CHW | MiLB | 10.64 | 1.02 | 10.40 | 0.20 | 30.2% | 2.9% | 27.3% | .247 | 1.05 | .354 | 68.0% | 53 | 47 | 1.82 | ||||
| 2026 | CHW | ST | 27.00 | 0.00 | 1.00 | 27.00 | 50.0% | 0.0% | 50.0% | .500 | 3.00 | .000 | 100.0% | 555 | 705 | 36.65 | ||||
| 2026 | Steamer | PROJ | 6.51 | 4.44 | 1.47 | 1.32 | 16.1% | 11.0% | 5.1% | .268 | 1.55 | .296 | 71.4% | 5.20 | ||||||
| 2026 | OOPSY | PROJ | 6.50 | 3.25 | 2.00 | 1.15 | 18.0% | 9.0% | 9.0% | .256 | 1.28 | .288 | 64.9% | 4.57 | ||||||
| 2026 | CHW | AA | 9.58 | 3.27 | 2.93 | 1.09 | 25.3% | 8.6% | 16.7% | .236 | 1.26 | .296 | 80.9% | 54 | 90 | 4.25 | ||||
| 2026 | CHW | AAA | 7.20 | 2.70 | 2.67 | 0.00 | 21.6% | 8.1% | 13.5% | .147 | 0.80 | .192 | 75.0% | 17 | 53 | 2.81 | ||||
| 2026 | CHW | MiLB | 9.12 | 3.16 | 2.89 | 0.88 | 24.6% | 8.5% | 16.1% | .220 | 1.17 | .276 | 80.0% | 47 | 83 | 3.97 | ||||
| 2026 | Steamer | ROS | 7.06 | 3.45 | 2.04 | 1.29 | 18.0% | 8.8% | 9.2% | .260 | 1.41 | .293 | 72.1% | 4.65 | ||||||
| 2026 | OOPSY | ROS | 6.62 | 3.33 | 1.99 | 1.20 | 18.0% | 9.1% | 9.0% | .255 | 1.30 | .286 | 65.8% | 4.65 |
| 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 | CHW | A | 9.25 | 3.00 | 3.08 | 0.50 | 25.0% | 8.1% | 16.9% | .216 | 1.14 | .284 | 74.6% | 70 | 88 | 3.41 | ||||
| 2024 | CHW | A+ | 13.15 | 3.46 | 3.80 | 0.00 | 38.0% | 10.0% | 28.0% | .178 | 1.00 | .308 | 69.2% | 69 | 44 | 1.79 | ||||
| 2024 | CHW | MiLB | 10.29 | 3.12 | 3.29 | 0.37 | 28.3% | 8.6% | 19.7% | .207 | 1.10 | .289 | 73.3% | 70 | 77 | 2.98 | ||||
| 2025 | CHW | CPX | 21.00 | 0.00 | 7.00 | 0.00 | 77.8% | 0.0% | 77.8% | .000 | 0.00 | .000 | 100.0% | 0 | -3 | -0.17 | ||||
| 2025 | CHW | A | 3.38 | 0.00 | 1.00 | 0.00 | 12.5% | 0.0% | 12.5% | .375 | 1.13 | .429 | 100.0% | 0 | 70 | 2.82 | ||||
| 2025 | CHW | A+ | 10.33 | 1.17 | 8.80 | 0.23 | 28.4% | 3.2% | 25.2% | .255 | 1.12 | .356 | 65.7% | 61 | 50 | 1.91 | ||||
| 2025 | CHW | MiLB | 10.64 | 1.02 | 10.40 | 0.20 | 30.2% | 2.9% | 27.3% | .247 | 1.05 | .354 | 68.0% | 53 | 47 | 1.82 | ||||
| 2026 | CHW | ST | 27.00 | 0.00 | 1.00 | 27.00 | 50.0% | 0.0% | 50.0% | .500 | 3.00 | .000 | 100.0% | 555 | 705 | 36.65 | ||||
| 2026 | Steamer | PROJ | 6.51 | 4.44 | 1.47 | 1.32 | 16.1% | 11.0% | 5.1% | .268 | 1.55 | .296 | 71.4% | 5.20 | ||||||
| 2026 | OOPSY | PROJ | 6.50 | 3.25 | 2.00 | 1.15 | 18.0% | 9.0% | 9.0% | .256 | 1.28 | .288 | 64.9% | 4.57 | ||||||
| 2026 | CHW | AA | 9.58 | 3.27 | 2.93 | 1.09 | 25.3% | 8.6% | 16.7% | .236 | 1.26 | .296 | 80.9% | 54 | 90 | 4.25 | ||||
| 2026 | CHW | AAA | 7.20 | 2.70 | 2.67 | 0.00 | 21.6% | 8.1% | 13.5% | .147 | 0.80 | .192 | 75.0% | 17 | 53 | 2.81 | ||||
| 2026 | CHW | MiLB | 9.12 | 3.16 | 2.89 | 0.88 | 24.6% | 8.5% | 16.1% | .220 | 1.17 | .276 | 80.0% | 47 | 83 | 3.97 | ||||
| 2026 | Steamer | ROS | 7.06 | 3.45 | 2.04 | 1.29 | 18.0% | 8.8% | 9.2% | .260 | 1.41 | .293 | 72.1% | 4.65 | ||||||
| 2026 | OOPSY | ROS | 6.62 | 3.33 | 1.99 | 1.20 | 18.0% | 9.1% | 9.0% | .255 | 1.30 | .286 | 65.8% | 4.65 |
