Trevor Kelley
Pitcher · Career Stats, Bio & Records (2019-2023)
Trevor Kelley was a pitcher who played in Major League Baseball from 2019 to 2023 for 4 teams, including the Boston Red Sox, a span of 5 seasons. Across 42 career appearances, he went 1-4 with a 6.75 ERA and 45 strikeouts.
- W (Wins):
- Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
- ERA (Earned Run Average):
- Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
- SO (Strikeouts):
- For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
- WHIP (Walks and Hits per Inning Pitched):
- Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.
Data updated
- Position
- Pitcher
- Bats / Throws
- R / R
- Height / Weight
- 6'2" / 210 lb
- MLB Debut
- 2019-07-02
Full name: Trevor Michael Kelley
Season-by-Season Pitching
Click a stat to plot it across every season.
| Year | Team | Lg | W | L | G | GS | CG | SHO | SV | IP | H | ER | BB | SO | ERA | Lg ERA | Pitcher PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | BOS | AL | 0 | 3 | 10 | 0 | 0 | 0 | 0 | 8.1 | 9 | 8 | 5 | 6 | 8.64 | — | 0.0 |
| 2020 | PHI | NL | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 3.1 | 8 | 4 | 1 | 5 | 10.80 | — | 0.0 |
| 2022 | MIL | NL | 1 | 0 | 18 | 0 | 0 | 0 | 0 | 23.2 | 25 | 16 | 9 | 23 | 6.08 | 3.97 (-53%) | -1443.6 |
| 2023 | TBA | AL | 0 | 1 | 10 | 3 | 0 | 0 | 0 | 15.1 | 16 | 10 | 6 | 11 | 5.87 | 4.33 (-36%) | -937.3 |
| Career · 4 seasons | 1 | 4 | 42 | 3 | 0 | 0 | 0 | 50.2 | 58 | 38 | 21 | 45 | 6.75 | — | -2,381 | ||
Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.
Season-by-Season Batting
Click a stat to plot it across every season.
| Year | Team | Lg | G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | Lg AVG | Lg OBP | Lg SLG | Lg OPS | PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | BOS | AL | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2020 | PHI | NL | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2022 | MIL | NL | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2023 | TBA | AL | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| Career · 4 seasons | 42 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | 0 | ||
Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.
Game Log & Splits
View full game log (84 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 19 | 0 | 0 | 0 | 0 | 0 | — |
| Away | 23 | 0 | 0 | 0 | 0 | 0 | — |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 19 | 24.1 | 28 | 19 | 7 | 24 | 7.03 |
| Away | 23 | 26.1 | 30 | 19 | 14 | 21 | 6.49 |
Last 10 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023-08-25 | TBR | NYY | — | 2.0 | 4 | 4 | 4 | 2 | 3 | 1 |
| 2023-06-03 | TBR | BOS | — | 2.1 | 1 | 0 | 0 | 0 | 2 | 0 |
| 2023-05-30 | TBR | CHC | — | 0.2 | 2 | 0 | 0 | 1 | 0 | 0 |
| 2023-05-29 | TBR | CHC | — | 0.1 | 0 | 0 | 0 | 0 | 1 | 0 |
| 2023-05-27 | TBR | LAD | — | 2.0 | 1 | 1 | 1 | 1 | 3 | 1 |
| 2023-05-22 | TBR | TOR | — | 2.0 | 2 | 0 | 0 | 0 | 0 | 0 |
| 2023-05-18 | TBR | NYN | — | 1.0 | 1 | 0 | 0 | 1 | 0 | 0 |
| 2023-05-14 | TBR | NYY | — | 1.0 | 2 | 2 | 2 | 0 | 0 | 1 |
| 2023-05-12 | TBR | NYY | — | 2.0 | 1 | 1 | 1 | 0 | 2 | 1 |
| 2023-04-15 | TBR | TOR | L | 2.0 | 2 | 2 | 2 | 1 | 0 | 0 |
Fielding Statistics
Career Fielding Totals by Position
Season-by-Season Fielding
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 42 |
Trevor Kelley: the record in brief
Trevor Kelley's entire major league record comes from the period beginning July 2, 2019. By club, Kelley's seasons break down as the Boston Red Sox (2019), the Philadelphia Phillies (2020), the Milwaukee Brewers (2022), and the Tampa Bay Rays (2023). At 6-foot-2 and 210 pounds, Kelley is listed as a pitcher. The bio says Kelley batted and threw right-handed. The recorded birth is October 20, 1992, in Providence, RI, USA. Kelley's full given name, per the bio, is Trevor Michael Kelley.
Kelley pitched in 42 games, starting 3, and finished with a 1-4 record and 6.75 ERA. The totals include 45 strikeouts. The league ERA over Kelley's seasons was 4.29, so the 6.75 figure ran 57.4% worse than average. Among the heaviest workloads, the lowest ERA was 5.87 in 2023, when the league's was 4.33.
Every defensive appearance on record for Kelley, 42 games, came at pitcher. Fielding on the mound produced 1 putouts and 3 assists against 0 errors.
Retrosheet box scores cover 84 of Kelley's games, and the full game log is linked from the splits section.
Frequently Asked Questions about Trevor Kelley
- What years did Trevor Kelley play?
- Trevor Kelley played in Major League Baseball from 2019 to 2023.
- Was Trevor Kelley a pitcher?
- Yes. Trevor Kelley pitched in the major leagues, recording 1 wins and 45 strikeouts.
- What teams did Trevor Kelley play for?
- Trevor Kelley played for 4 teams: the Boston Red Sox (2019), the Philadelphia Phillies (2020), the Milwaukee Brewers (2022), and the Tampa Bay Rays (2023).
- What were Trevor Kelley's career stats?
- In 42 games, Trevor Kelley went 1-4 with a 6.75 ERA, 45 strikeouts, and 50.2 innings pitched.
- What position did Trevor Kelley play?
- Trevor Kelley played primarily as a pitcher, the position where he appeared in the most games.
- How tall was Trevor Kelley and how much did he weigh?
- Trevor Kelley was listed at 6 feet 2 inches and 210 pounds.
- What was Trevor Kelley's career ERA?
- Trevor Kelley finished with a 6.75 career ERA, going 1-4 with 45 strikeouts.
- How many strikeouts did Trevor Kelley have?
- Trevor Kelley recorded 45 career strikeouts.
- Is Trevor Kelley in the Hall of Fame?
- No. Trevor Kelley has not been inducted into the National Baseball Hall of Fame.