Pitcher · 2023
Trevor Kelley
- Age
- 31
- B/T
- R/R
- Height
- 6' 2"
- Weight
- 210 lb
- Number
- #99
- Born
- October 20, 1992 in Providence, RI, USA
- MLB debut
- July 2, 2019
- dbWAR
- -1.2 4 season(s)
- IP
- 15.1
- ERA
- 5.87
- FIP
- 6.78
- K/9
- 6.5
- FIP−
- 156 100 = avg
Trevor Kelley is a relief pitcher for the Tampa Bay Rays. In 2023 he struck out 11 batters over 15.1 innings across 10 appearances, going 0-1. His ERA of 5.87 was 35.5% higher than the league average of 4.33. Stripping out defence, his 6.78 FIP suggests that his ERA had some help behind him. He missed bats on 23.3% of swings (9.9% of every pitch he threw), walked 8.7% of the batters he faced and struck out 15.9%. His -0.3 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.
League context
Percentile among qualified pitchers, 2023.
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 10 | 3 | 15.1 | 0 | 1 | 0 | 16 | 10 | 11 | 6 | 5.87 | 6.78 | 1.43 | 6.5 | 3.5 | 136 | 156 | -0.3 | |
| 2022 | 18 | 0 | 23.2 | 1 | 0 | 0 | 25 | 16 | 23 | 9 | 6.08 | 6.41 | 1.44 | 8.7 | 3.4 | 153 | 161 | -0.5 | |
| 2020 | 4 | 0 | 3.1 | 0 | 0 | 0 | 8 | 4 | 5 | 1 | 10.80 | 8.89 | 2.70 | 13.5 | 2.7 | 243 | 200 | -0.1 | |
| 2019 | 10 | 0 | 8.1 | 0 | 3 | 0 | 9 | 8 | 6 | 5 | 8.64 | 6.69 | 1.68 | 6.5 | 5.4 | 192 | 149 | -0.1 |
Platoon splits
How left- and right-handed hitters fare against him.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 19 | 17 | 3 | 1 | 2 | 5 | .176 | .263 | .353 | .248 | 26.3% |
| vs RHB | 50 | 44 | 13 | 3 | 4 | 6 | .295 | .380 | .614 | .420 | 12.0% |
Pitch sequencing
What Trevor Kelley throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Trevor Kelley throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2023.
| Sinker | 127 | 89.0 | 2,156 | 51.2% | 18.2% | |
| Sweeper | 105 | 75.7 | 2,496 | 46.7% | 32.0% | |
| Slider | 20 | 81.5 | 2,399 | 30.0% | 25.0% | |
| Four-Seam Fastball | 17 | 89.5 | 2,205 | 23.5% | 0.0% |
Head to head
Put Trevor Kelley beside up to three others.
wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.