Trevor Kelley
P · Last on a Brewers farm club: Nashville Sounds, 2022
- B/T
- R/R
- Size
- 6' 2", 210 lb
- Born
- 1992-10-20 · Providence, RI, USA
- Acquired
- Drafted 2015, round 36, pick 1071, by Boston Red Sox
- MLB debut
- 2019-07-02
The path and tables below cover his minor-league seasons with any club, as the MLB Stats API lists them, through 2026. His major-league seasons are in the "Major leagues" section.
Level path
- ROK2015GCL Red Sox
- SS-A2015Lowell Spinners
- A2016Greenville Drive
- A+2016Salem Red Sox
- A+2017Salem Red Sox
- AA2017Portland Sea Dogs
- AA2018Portland Sea Dogs
- AAA2018Worcester Red Sox
- AAA2019Worcester Red Sox
- AAA2021Gwinnett Stripers
- AAA2022Nashville Sounds
- ROK2023FCL Rays
- AAA2023Durham Bulls
- AAA2024Tacoma Rainiers
Pitching
| Year | Lvl | Club | Age | Games pitched in. | Games started. | Wins. | Losses. | Saves. | Innings pitched. The digit after the point is outs: 110.1 is 110 innings and one out. | Hits allowed. | Walks allowed. | Strikeouts. | Home runs allowed. | Earned run average: earned runs allowed per nine innings. | Walks plus hits allowed per inning pitched. | Strikeouts per nine innings. | Walks per nine innings. | Strikeout rate: strikeouts divided by batters faced. | Walk rate: walks divided by batters faced. | Strikeout rate minus walk rate, both as a share of batters faced. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015 | ROK | GCL Red Sox | 22 | 6 | 0 | 0 | 0 | 3 | 7.0 | 5 | 2 | 8 | 0 | 1.29 | 1.00 | 10.29 | 2.57 | 28.6% | 7.1% | 21.4% |
| 2015 | SS-A | Lowell Spinners | 22 | 12 | 0 | 1 | 3 | 1 | 18.0 | 20 | 8 | 20 | 1 | 4.50 | 1.56 | 10.00 | 4.00 | 23.5% | 9.4% | 14.1% |
| 2016 | A | Greenville Drive | 23 | 21 | 0 | 1 | 3 | 3 | 37.1 | 34 | 5 | 40 | 2 | 1.93 | 1.04 | 9.64 | 1.21 | 26.1% | 3.3% | 22.9% |
| 2016 | A+ | Salem Red Sox | 23 | 1 | 0 | 0 | 0 | 0 | 2.0 | 0 | 0 | 3 | 0 | 0.00 | 0.00 | 13.50 | 0.00 | 50.0% | 0.0% | 50.0% |
| 2017 | A+ | Salem Red Sox | 24 | 22 | 0 | 1 | 0 | 7 | 33.2 | 23 | 8 | 32 | 1 | 1.34 | 0.92 | 8.55 | 2.14 | 25.4% | 6.3% | 19.0% |
| 2017 | AA | Portland Sea Dogs | 24 | 16 | 0 | 1 | 1 | 0 | 27.1 | 28 | 7 | 17 | 1 | 3.62 | 1.28 | 5.60 | 2.30 | 14.8% | 6.1% | 8.7% |
| 2018 | AA | Portland Sea Dogs | 25 | 28 | 0 | 1 | 2 | 5 | 33.0 | 31 | 13 | 25 | 1 | 3.82 | 1.33 | 6.82 | 3.55 | 17.7% | 9.2% | 8.5% |
| 2018 | AAA | Worcester Red Sox | 25 | 13 | 0 | 1 | 1 | 1 | 23.1 | 21 | 9 | 20 | 1 | 1.54 | 1.29 | 7.71 | 3.47 | 20.6% | 9.3% | 11.3% |
| 2019 | AAA | Worcester Red Sox | 26 | 52 | 0 | 5 | 5 | 12 | 65.1 | 51 | 21 | 63 | 8 | 1.79 | 1.10 | 8.68 | 2.89 | 23.5% | 7.8% | 15.7% |
| 2021 | AAA | Gwinnett Stripers | 28 | 37 | 0 | 3 | 4 | 2 | 41.1 | 27 | 18 | 46 | 2 | 1.52 | 1.09 | 10.02 | 3.92 | 28.8% | 11.3% | 17.5% |
| 2022 | AAA | Nashville Sounds | 29 | 34 | 0 | 3 | 3 | 9 | 34.1 | 29 | 10 | 42 | 2 | 2.36 | 1.14 | 11.01 | 2.62 | 30.0% | 7.1% | 22.9% |
| 2023 | ROK | FCL Rays | 30 | 1 | 0 | 1 | 0 | 0 | 1.0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 | 9.00 | 0.00 | 33.3% | 0.0% | 33.3% |
| 2023 | AAA | Durham Bulls | 30 | 27 | 3 | 1 | 0 | 2 | 32.2 | 38 | 11 | 28 | 7 | 5.23 | 1.50 | 7.71 | 3.03 | 18.7% | 7.3% | 11.3% |
| 2024 | AAA | Tacoma Rainiers | 31 | 54 | 0 | 3 | 2 | 1 | 53.2 | 52 | 33 | 62 | 7 | 3.52 | 1.58 | 10.40 | 5.53 | 25.7% | 13.7% | 12.0% |
Hitting
| Year | Lvl | Club | Age | Games played. | Plate appearances: every trip to the plate, walks and hit-by-pitches included. | Hits. | Doubles. | Triples. | Home runs. | Runs scored. | Runs batted in. | Walks. | Strikeouts. | Stolen bases. | Batting average: hits divided by at-bats. | On-base percentage: how often he reaches base by a hit, walk or hit-by-pitch. | Slugging percentage: total bases divided by at-bats. | On-base plus slugging: OBP and SLG added together. | Isolated power: SLG minus AVG. It counts only the extra bases. | Strikeout rate: strikeouts divided by plate appearances. | Walk rate: walks divided by plate appearances. | Batting average on balls in play: hits other than home runs, divided by at-bats that ended with the ball in play. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | AA | Portland Sea Dogs | 25 | 28 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .000 | .000 | .000 | .000 | .000 | 100.0% | 0.0% | — |
| 2021 | AAA | Gwinnett Stripers | 28 | 37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | — | — | — | — |
Major leagues
Pitching
| Year | Club | Age | Games pitched in. | Games started. | Wins. | Losses. | Saves. | Innings pitched. The digit after the point is outs: 110.1 is 110 innings and one out. | Hits allowed. | Walks allowed. | Strikeouts. | Home runs allowed. | Earned run average: earned runs allowed per nine innings. | Walks plus hits allowed per inning pitched. | Strikeouts per nine innings. | Walks per nine innings. | Strikeout rate: strikeouts divided by batters faced. | Walk rate: walks divided by batters faced. | Strikeout rate minus walk rate, both as a share of batters faced. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | Boston Red Sox | 26 | 10 | 0 | 0 | 3 | 0 | 8.1 | 9 | 5 | 6 | 2 | 8.64 | 1.68 | 6.48 | 5.40 | 15.0% | 12.5% | 2.5% |
| 2020 | Philadelphia Phillies | 27 | 4 | 0 | 0 | 0 | 0 | 3.1 | 8 | 1 | 5 | 2 | 10.80 | 2.70 | 13.50 | 2.70 | 26.3% | 5.3% | 21.1% |
| 2022 | Milwaukee Brewers | 29 | 18 | 0 | 1 | 0 | 0 | 23.2 | 25 | 9 | 23 | 7 | 6.08 | 1.44 | 8.75 | 3.42 | 21.5% | 8.4% | 13.1% |
| 2023 | Tampa Bay Rays | 30 | 10 | 3 | 0 | 1 | 0 | 15.1 | 16 | 6 | 11 | 4 | 5.87 | 1.43 | 6.46 | 3.52 | 15.9% | 8.7% | 7.2% |
Hitting
| Year | Club | Age | Games played. | Plate appearances: every trip to the plate, walks and hit-by-pitches included. | Hits. | Doubles. | Triples. | Home runs. | Runs scored. | Runs batted in. | Walks. | Strikeouts. | Stolen bases. | Batting average: hits divided by at-bats. | On-base percentage: how often he reaches base by a hit, walk or hit-by-pitch. | Slugging percentage: total bases divided by at-bats. | On-base plus slugging: OBP and SLG added together. | Isolated power: SLG minus AVG. It counts only the extra bases. | Strikeout rate: strikeouts divided by plate appearances. | Walk rate: walks divided by plate appearances. | Batting average on balls in play: hits other than home runs, divided by at-bats that ended with the ball in play. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | Philadelphia Phillies | 27 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | — | — | — | — |
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Stats from the MLB Stats API, through Oct 9, 2026.