Players · K · Pitcher · 2023
Corey Kluber
- Age
- 37
- B/T
- R/R
- Height
- 6' 4"
- Weight
- 210 lb
- Number
- #28
- Born
- April 10, 1986 in Birmingham, AL, United States
- MLB debut
- September 1, 2011
- dbWAR
- 26.3 15 season(s)
- IP
- 55.0
- ERA
- 7.04
- FIP
- 7.11
- K/9
- 6.9
- FIP−
- 164 100 = avg
Corey Kluber was a starting pitcher for the Boston Red Sox. In 2023 he struck out 42 batters over 55.0 innings across 15 appearances, 9 of them starts, going 3-6. His ERA of 7.04 was 62.4% higher than the league average of 4.33 — the worst on his team, and 530th of 550 among MLB pitchers with 20+ innings. Stripping out defence, his 7.11 FIP suggests the ERA was no fluke. He missed bats on 20.9% of swings (10.2% of every pitch he threw), walked 8.2% of the batters he faced and struck out 16.3%. His -1.1 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.
WAR by season
Pitching
Standard and advanced, by season.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | BOS | 15 | 9 | 55.0 | 3 | 6 | 1 | 69 | 43 | 42 | 21 | 7.04 | 7.11 | 1.64 | 6.9 | 3.4 | 162 | 164 | -1.1 | |
| 2022 | TB | 31 | 31 | 164.0 | 10 | 10 | 0 | 178 | 79 | 139 | 21 | 4.34 | 3.57 | 1.21 | 7.6 | 1.2 | 109 | 90 | 2.7 | |
| 2021 | NYY | 16 | 16 | 80.0 | 5 | 3 | 0 | 74 | 34 | 82 | 33 | 3.83 | 3.85 | 1.34 | 9.2 | 3.7 | 90 | 90 | 1.4 | |
| 2020 | TEX | 1 | 1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.00 | 4.19 | 1.00 | 9.0 | 9.0 | 0 | 94 | 0.0 | |
| 2019 | CLE | 7 | 7 | 35.2 | 2 | 3 | 0 | 44 | 23 | 38 | 15 | 5.80 | 4.06 | 1.65 | 9.6 | 3.8 | 129 | 90 | 0.6 | |
| 2018 | CLE | 33 | 33 | 215.0 | 20 | 7 | 0 | 179 | 69 | 222 | 34 | 2.89 | 3.12 | 0.99 | 9.3 | 1.4 | 70 | 75 | 5.3 | |
| 2017 | CLE | 29 | 29 | 203.2 | 18 | 4 | 0 | 141 | 51 | 265 | 36 | 2.25 | 2.50 | 0.87 | 11.7 | 1.6 | 52 | 57 | 6.7 | |
| 2016 | CLE | 32 | 32 | 215.0 | 18 | 9 | 0 | 170 | 75 | 227 | 57 | 3.14 | 3.26 | 1.06 | 9.5 | 2.4 | 75 | 78 | 5.2 | |
| 2015 | CLE | 32 | 32 | 222.0 | 9 | 16 | 0 | 189 | 86 | 245 | 45 | 3.49 | 2.97 | 1.05 | 9.9 | 1.8 | 88 | 75 | 5.6 |
Batting
Standard and advanced, by season.
| Trend | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | NYY | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 | .000 | 0.0% | 50.0% | .000 | -0.5 | -121 | -0.0 | |
| 2019 | CLE | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 | — | 0.0% | 100.0% | .000 | -0.3 | -120 | -0.0 | |
| 2018 | CLE | 3 | 6 | 0 | 0 | 0 | 0 | 0 | 4 | .000 | .000 | .000 | .000 | .000 | 0.0% | 66.7% | .000 | -1.5 | -116 | -0.1 | |
| 2017 | CLE | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | .500 | .500 | .500 | .000 | .500 | 0.0% | 0.0% | .437 | +0.2 | 179 | 0.0 | |
| 2016 | CLE | 2 | 6 | 1 | 0 | 0 | 0 | 0 | 3 | .250 | .250 | .500 | .250 | 1.000 | 0.0% | 50.0% | .316 | -0.0 | 91 | 0.1 | |
| 2015 | CLE | 2 | 6 | 0 | 0 | 0 | 0 | 0 | 3 | .000 | .000 | .000 | .000 | .000 | 0.0% | 50.0% | .000 | -1.5 | -114 | -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 | 136 | 119 | 37 | 8 | 14 | 22 | .311 | .397 | .613 | .428 | 16.2% |
| vs RHB | 121 | 113 | 32 | 9 | 7 | 20 | .283 | .331 | .593 | .388 | 16.5% |
Pitch sequencing
What Corey Kluber throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Corey Kluber throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Curveball | 279 | 80.5 | 2,556 | 53.0% | 26.1% | 73 | .247 | .765 | |
| Cutter | 271 | 86.1 | 2,479 | 43.2% | 18.4% | 60 | .333 | 1.187 | |
| Sinker | 263 | 88.2 | 2,206 | 41.8% | 10.1% | 56 | .393 | 1.280 | |
| Changeup | 157 | 82.1 | 1,721 | 45.2% | 30.0% | 42 | .190 | .471 | |
| Four-Seam Fastball | 20 | 88.3 | 2,277 | 40.0% | 0.0% | 1 | — | — |
Head to head
Put Corey Kluber beside up to three others.
Similar players
Nearest 2023 seasons by command, run prevention and role, on rate statistics rather than totals.
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.