Trennor O'Donnell
Boston Red Sox (A+)P
Age: 25
Bats/Throws: R/R
6'7" / 240
DOB: 6/6/2001
(25 years, 3 months, 6 days)
P
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Preseason ProjectionsIn-Season ProjectionsMinor LeaguesCollege
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | BALL | NCAA | 20 | 2 | 2 | 0 | 9 | 7 | 33.2 | 9.09 | 3.21 | 0.80 | .309 | 70.4% | 3.74 | 4.42 | |||||||||
| 2022 | BALL | NCAA | 21 | 6 | 2 | 0 | 14 | 14 | 65.2 | 10.14 | 3.70 | 1.92 | .310 | 69.4% | 5.48 | 6.57 | |||||||||
| 2023 | BALL | NCAA | 22 | 5 | 4 | 0 | 16 | 15 | 92.0 | 9.49 | 3.13 | 0.88 | .266 | 75.2% | 2.93 | 4.92 | |||||||||
| 2024 | BOS | A | 23 | 3 | 7 | 1 | 20 | 6 | 63.0 | 10.14 | 3.00 | 0.43 | .335 | 52.4% | 38.7% | 5.5% | 4.00 | 3.18 | 3.35 | ||||||
| 2025 | BOS | A | 24 | 1 | 3 | 0 | 7 | 2 | 23.0 | 9.39 | 5.09 | 0.39 | .353 | 62.8% | 34.8% | 3.8% | 4.70 | 3.75 | 4.09 | ||||||
| 2026 | Steamer | PROJ | 25 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.18 | 4.94 | 1.50 | .303 | 67.5% | 41.9% | 6.08 | 5.94 | 5.76 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 25 | 0 | 0 | 0 | 1 | 1 | 3.2 | 5.16 | 4.36 | 1.55 | .299 | 64.9% | 6.04 | 5.84 | 0.0 | ||||||||
| 2026 | BOS | CPX | 25 | 0 | 1 | 0 | 3 | 3 | 7.1 | 12.27 | 4.91 | 0.00 | .333 | 80.0% | 12.5% | 0.0% | 2.45 | 3.96 | 5.24 | ||||||
| 2026 | BOS | A | 25 | 0 | 1 | 1 | 3 | 1 | 9.0 | 10.00 | 1.00 | 3.00 | .273 | 86.2% | 36.0% | 30.0% | 4.00 | 6.10 | 3.33 | ||||||
| 2026 | BOS | A+ | 25 | 2 | 2 | 0 | 9 | 0 | 21.1 | 6.33 | 4.64 | 2.95 | .303 | 41.1% | 33.8% | 20.6% | 9.28 | 8.17 | 6.94 | ||||||
| 2026 | BOS | MiLB | 25 | 2 | 4 | 1 | 15 | 4 | 37.2 | 8.36 | 3.82 | 2.39 | .300 | 55.6% | 32.7% | 19.6% | 6.69 | 6.86 | 5.75 | ||||||
| 2026 | Steamer | ROS | 25 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.50 | 4.78 | 1.48 | .298 | 68.1% | 5.83 | 5.76 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 25 | 0 | 0 | 0 | 1 | 1 | 2.8 | 4.93 | 4.31 | 1.68 | .291 | 63.5% | 6.22 | 6.06 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | BALL | NCAA | 20 | 2 | 2 | 0 | 9 | 7 | 33.2 | 9.09 | 3.21 | 0.80 | .309 | 70.4% | 3.74 | 4.42 | |||||||||
| 2022 | BALL | NCAA | 21 | 6 | 2 | 0 | 14 | 14 | 65.2 | 10.14 | 3.70 | 1.92 | .310 | 69.4% | 5.48 | 6.57 | |||||||||
| 2023 | BALL | NCAA | 22 | 5 | 4 | 0 | 16 | 15 | 92.0 | 9.49 | 3.13 | 0.88 | .266 | 75.2% | 2.93 | 4.92 | |||||||||
| 2024 | BOS | A | 23 | 3 | 7 | 1 | 20 | 6 | 63.0 | 10.14 | 3.00 | 0.43 | .335 | 52.4% | 38.7% | 5.5% | 4.00 | 3.18 | 3.35 | ||||||
| 2025 | BOS | A | 24 | 1 | 3 | 0 | 7 | 2 | 23.0 | 9.39 | 5.09 | 0.39 | .353 | 62.8% | 34.8% | 3.8% | 4.70 | 3.75 | 4.09 | ||||||
| 2026 | Steamer | PROJ | 25 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5.18 | 4.94 | 1.50 | .303 | 67.5% | 41.9% | 6.08 | 5.94 | 5.76 | 0.0 | ||||||
| 2026 | OOPSY | PROJ | 25 | 0 | 0 | 0 | 1 | 1 | 3.2 | 5.16 | 4.36 | 1.55 | .299 | 64.9% | 6.04 | 5.84 | 0.0 | ||||||||
| 2026 | BOS | CPX | 25 | 0 | 1 | 0 | 3 | 3 | 7.1 | 12.27 | 4.91 | 0.00 | .333 | 80.0% | 12.5% | 0.0% | 2.45 | 3.96 | 5.24 | ||||||
| 2026 | BOS | A | 25 | 0 | 1 | 1 | 3 | 1 | 9.0 | 10.00 | 1.00 | 3.00 | .273 | 86.2% | 36.0% | 30.0% | 4.00 | 6.10 | 3.33 | ||||||
| 2026 | BOS | A+ | 25 | 2 | 2 | 0 | 9 | 0 | 21.1 | 6.33 | 4.64 | 2.95 | .303 | 41.1% | 33.8% | 20.6% | 9.28 | 8.17 | 6.94 | ||||||
| 2026 | BOS | MiLB | 25 | 2 | 4 | 1 | 15 | 4 | 37.2 | 8.36 | 3.82 | 2.39 | .300 | 55.6% | 32.7% | 19.6% | 6.69 | 6.86 | 5.75 | ||||||
| 2026 | Steamer | ROS | 25 | 0 | 0 | 0 | 1 | 0 | 1.0 | 5.50 | 4.78 | 1.48 | .298 | 68.1% | 5.83 | 5.76 | 0.0 | ||||||||
| 2026 | OOPSY | ROS | 25 | 0 | 0 | 0 | 1 | 1 | 2.8 | 4.93 | 4.31 | 1.68 | .291 | 63.5% | 6.22 | 6.06 | 0.0 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesCollege
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | BALL | NCAA | 2 | 2 | 3.74 | 9 | 7 | 0 | 0 | 0 | 33.2 | 143 | 32 | 16 | 14 | 3 | 12 | 0 | 0 | 0 | 34 | ||||
| 2022 | BALL | NCAA | 6 | 2 | 5.48 | 14 | 14 | 0 | 0 | 0 | 65.2 | 288 | 67 | 43 | 40 | 14 | 27 | 2 | 2 | 0 | 74 | ||||
| 2023 | BALL | NCAA | 5 | 4 | 2.93 | 16 | 15 | 1 | 0 | 0 | 92.0 | 382 | 72 | 37 | 30 | 9 | 32 | 7 | 7 | 0 | 97 | ||||
| 2024 | BOS | A | 3 | 7 | 4.00 | 20 | 6 | 0 | 0 | 1 | 1 | 1 | 63.0 | 288 | 66 | 46 | 28 | 3 | 21 | 0 | 5 | 8 | 1 | 71 | |
| 2025 | BOS | A | 1 | 3 | 4.70 | 7 | 2 | 0 | 0 | 0 | 0 | 1 | 23.0 | 106 | 25 | 15 | 12 | 1 | 13 | 0 | 0 | 3 | 0 | 24 | |
| 2026 | Steamer | PROJ | 0 | 0 | 6.08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 6.04 | 1 | 1 | 0 | 0 | 0 | 3.2 | 15 | 4 | 2 | 2 | 1 | 2 | 0 | 0 | 2 | |||||
| 2026 | BOS | CPX | 0 | 1 | 2.45 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 7.1 | 28 | 4 | 2 | 2 | 0 | 4 | 0 | 2 | 0 | 0 | 10 | |
| 2026 | BOS | A | 0 | 1 | 4.00 | 3 | 1 | 0 | 0 | 1 | 0 | 0 | 9.0 | 36 | 9 | 5 | 4 | 3 | 1 | 0 | 0 | 0 | 0 | 10 | |
| 2026 | BOS | A+ | 2 | 2 | 9.28 | 9 | 0 | 0 | 0 | 0 | 0 | 1 | 21.1 | 100 | 27 | 27 | 22 | 7 | 11 | 0 | 1 | 2 | 1 | 15 | |
| 2026 | BOS | MiLB | 2 | 4 | 6.69 | 15 | 4 | 0 | 0 | 1 | 0 | 1 | 37.2 | 164 | 40 | 34 | 28 | 10 | 16 | 0 | 3 | 2 | 1 | 35 | |
| 2026 | Steamer | ROS | 0 | 0 | 5.83 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 6.22 | 1 | 1 | 0 | 0 | 0 | 2.8 | 13 | 3 | 2 | 2 | 1 | 1 | 0 | 0 | 2 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | BALL | NCAA | 2 | 2 | 3.74 | 9 | 7 | 0 | 0 | 0 | 33.2 | 143 | 32 | 16 | 14 | 3 | 12 | 0 | 0 | 0 | 34 | ||||
| 2022 | BALL | NCAA | 6 | 2 | 5.48 | 14 | 14 | 0 | 0 | 0 | 65.2 | 288 | 67 | 43 | 40 | 14 | 27 | 2 | 2 | 0 | 74 | ||||
| 2023 | BALL | NCAA | 5 | 4 | 2.93 | 16 | 15 | 1 | 0 | 0 | 92.0 | 382 | 72 | 37 | 30 | 9 | 32 | 7 | 7 | 0 | 97 | ||||
| 2024 | BOS | A | 3 | 7 | 4.00 | 20 | 6 | 0 | 0 | 1 | 1 | 1 | 63.0 | 288 | 66 | 46 | 28 | 3 | 21 | 0 | 5 | 8 | 1 | 71 | |
| 2025 | BOS | A | 1 | 3 | 4.70 | 7 | 2 | 0 | 0 | 0 | 0 | 1 | 23.0 | 106 | 25 | 15 | 12 | 1 | 13 | 0 | 0 | 3 | 0 | 24 | |
| 2026 | Steamer | PROJ | 0 | 0 | 6.08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | |||
| 2026 | OOPSY | PROJ | 0 | 0 | 6.04 | 1 | 1 | 0 | 0 | 0 | 3.2 | 15 | 4 | 2 | 2 | 1 | 2 | 0 | 0 | 2 | |||||
| 2026 | BOS | CPX | 0 | 1 | 2.45 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 7.1 | 28 | 4 | 2 | 2 | 0 | 4 | 0 | 2 | 0 | 0 | 10 | |
| 2026 | BOS | A | 0 | 1 | 4.00 | 3 | 1 | 0 | 0 | 1 | 0 | 0 | 9.0 | 36 | 9 | 5 | 4 | 3 | 1 | 0 | 0 | 0 | 0 | 10 | |
| 2026 | BOS | A+ | 2 | 2 | 9.28 | 9 | 0 | 0 | 0 | 0 | 0 | 1 | 21.1 | 100 | 27 | 27 | 22 | 7 | 11 | 0 | 1 | 2 | 1 | 15 | |
| 2026 | BOS | MiLB | 2 | 4 | 6.69 | 15 | 4 | 0 | 0 | 1 | 0 | 1 | 37.2 | 164 | 40 | 34 | 28 | 10 | 16 | 0 | 3 | 2 | 1 | 35 | |
| 2026 | Steamer | ROS | 0 | 0 | 5.83 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | ||||
| 2026 | OOPSY | ROS | 0 | 0 | 6.22 | 1 | 1 | 0 | 0 | 0 | 2.8 | 13 | 3 | 2 | 2 | 1 | 1 | 0 | 0 | 2 |
Preseason ProjectionsIn-Season ProjectionsMinor LeaguesAveragesCollege
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | BALL | NCAA | 9.09 | 3.21 | 2.83 | 0.80 | 23.8% | 8.4% | 15.4% | .244 | 1.31 | .309 | 70.4% | 4.42 | ||||||
| 2022 | BALL | NCAA | 10.14 | 3.70 | 2.74 | 1.92 | 25.7% | 9.4% | 16.3% | .259 | 1.43 | .310 | 69.4% | 6.57 | ||||||
| 2023 | BALL | NCAA | 9.49 | 3.13 | 3.03 | 0.88 | 25.4% | 8.4% | 17.0% | .210 | 1.13 | .266 | 75.2% | 4.92 | ||||||
| 2024 | BOS | A | 10.14 | 3.00 | 3.38 | 0.43 | 24.7% | 7.3% | 17.4% | .252 | 1.38 | .335 | 52.4% | 100 | 83 | 3.18 | ||||
| 2025 | BOS | A | 9.39 | 5.09 | 1.85 | 0.39 | 22.6% | 12.3% | 10.4% | .269 | 1.65 | .353 | 62.8% | 112 | 93 | 3.75 | ||||
| 2026 | Steamer | PROJ | 5.18 | 4.94 | 1.05 | 1.50 | 12.4% | 11.8% | 0.6% | .289 | 1.72 | .303 | 67.5% | 5.94 | ||||||
| 2026 | OOPSY | PROJ | 5.16 | 4.36 | 1.18 | 1.55 | 12.5% | 10.6% | 1.9% | .287 | 1.64 | .299 | 64.9% | 5.84 | ||||||
| 2026 | BOS | CPX | 12.27 | 4.91 | 2.50 | 0.00 | 35.7% | 14.3% | 21.4% | .182 | 1.09 | .333 | 80.0% | 40 | 68 | 3.96 | ||||
| 2026 | BOS | A | 10.00 | 1.00 | 10.00 | 3.00 | 27.8% | 2.8% | 25.0% | .257 | 1.11 | .273 | 86.2% | 81 | 129 | 6.10 | ||||
| 2026 | BOS | A+ | 6.33 | 4.64 | 1.36 | 2.95 | 15.0% | 11.0% | 4.0% | .307 | 1.78 | .303 | 41.1% | 179 | 161 | 8.17 | ||||
| 2026 | BOS | MiLB | 8.36 | 3.82 | 2.19 | 2.39 | 21.3% | 9.8% | 11.6% | .276 | 1.49 | .300 | 55.6% | 128 | 135 | 6.86 | ||||
| 2026 | Steamer | ROS | 5.50 | 4.78 | 1.15 | 1.48 | 13.2% | 11.5% | 1.7% | .281 | 1.67 | .298 | 68.1% | 5.76 | ||||||
| 2026 | OOPSY | ROS | 4.93 | 4.31 | 1.15 | 1.68 | 12.1% | 10.6% | 1.5% | .285 | 1.61 | .291 | 63.5% | 6.06 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | BALL | NCAA | 9.09 | 3.21 | 2.83 | 0.80 | 23.8% | 8.4% | 15.4% | .244 | 1.31 | .309 | 70.4% | 4.42 | ||||||
| 2022 | BALL | NCAA | 10.14 | 3.70 | 2.74 | 1.92 | 25.7% | 9.4% | 16.3% | .259 | 1.43 | .310 | 69.4% | 6.57 | ||||||
| 2023 | BALL | NCAA | 9.49 | 3.13 | 3.03 | 0.88 | 25.4% | 8.4% | 17.0% | .210 | 1.13 | .266 | 75.2% | 4.92 | ||||||
| 2024 | BOS | A | 10.14 | 3.00 | 3.38 | 0.43 | 24.7% | 7.3% | 17.4% | .252 | 1.38 | .335 | 52.4% | 100 | 83 | 3.18 | ||||
| 2025 | BOS | A | 9.39 | 5.09 | 1.85 | 0.39 | 22.6% | 12.3% | 10.4% | .269 | 1.65 | .353 | 62.8% | 112 | 93 | 3.75 | ||||
| 2026 | Steamer | PROJ | 5.18 | 4.94 | 1.05 | 1.50 | 12.4% | 11.8% | 0.6% | .289 | 1.72 | .303 | 67.5% | 5.94 | ||||||
| 2026 | OOPSY | PROJ | 5.16 | 4.36 | 1.18 | 1.55 | 12.5% | 10.6% | 1.9% | .287 | 1.64 | .299 | 64.9% | 5.84 | ||||||
| 2026 | BOS | CPX | 12.27 | 4.91 | 2.50 | 0.00 | 35.7% | 14.3% | 21.4% | .182 | 1.09 | .333 | 80.0% | 40 | 68 | 3.96 | ||||
| 2026 | BOS | A | 10.00 | 1.00 | 10.00 | 3.00 | 27.8% | 2.8% | 25.0% | .257 | 1.11 | .273 | 86.2% | 81 | 129 | 6.10 | ||||
| 2026 | BOS | A+ | 6.33 | 4.64 | 1.36 | 2.95 | 15.0% | 11.0% | 4.0% | .307 | 1.78 | .303 | 41.1% | 179 | 161 | 8.17 | ||||
| 2026 | BOS | MiLB | 8.36 | 3.82 | 2.19 | 2.39 | 21.3% | 9.8% | 11.6% | .276 | 1.49 | .300 | 55.6% | 128 | 135 | 6.86 | ||||
| 2026 | Steamer | ROS | 5.50 | 4.78 | 1.15 | 1.48 | 13.2% | 11.5% | 1.7% | .281 | 1.67 | .298 | 68.1% | 5.76 | ||||||
| 2026 | OOPSY | ROS | 4.93 | 4.31 | 1.15 | 1.68 | 12.1% | 10.6% | 1.5% | .285 | 1.61 | .291 | 63.5% | 6.06 |
