Players · K · Pitcher · 2021 regular season
Ian Krol
- Age
- 30
- B/T
- L/L
- Height
- 6' 1"
- Weight
- 210 lb
- Number
- #46
- Born
- May 9, 1991 in Hinsdale, IL, United States
- MLB debut
- June 5, 2013
- dbWAR
- .4 Regular season, 10 season(s)
- IP
- 18.2
- ERA
- 4.34
- FIP
- 3.92
- K/9
- 8.7
- FIP−
- 92 100 = avg
Ian Krol was a relief pitcher for the Detroit Tigers. In 2021 he struck out 18 batters over 18.2 innings across 18 appearances, going 0-0. His ERA of 4.34 was 1.7% higher than the league average of 4.27. Stripping out defence, his 3.92 FIP suggests he pitched better than his ERA shows. He missed bats on 23.8% of swings (11.5% of every pitch he threw), walked 9.3% of the batters he faced and struck out 20.9%. His 0.2 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, 2021 regular season.
WAR by season
Pitching Regular season
Standard and advanced, by season. Regular-season games only.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | DET | 18 | 0 | 18.2 | 0 | 0 | 0 | 23 | 9 | 18 | 8 | 4.34 | 3.92 | 1.66 | 8.7 | 3.9 | 102 | 92 | 0.2 | |
| 2018 | LAA | 1 | 0 | 2.0 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 0.00 | 2.66 | 1.00 | 9.0 | 4.5 | 0 | 64 | 0.0 | |
| 2017 | ATL | 51 | 0 | 49.0 | 2 | 2 | 0 | 50 | 29 | 44 | 21 | 5.33 | 5.01 | 1.45 | 8.1 | 3.9 | 122 | 115 | -0.1 | |
| 2016 | ATL | 63 | 0 | 51.0 | 2 | 0 | 0 | 54 | 18 | 56 | 13 | 3.18 | 2.91 | 1.31 | 9.9 | 2.3 | 76 | 69 | 1.1 | |
| 2015 | DET | 33 | 0 | 28.0 | 2 | 3 | 0 | 31 | 18 | 26 | 17 | 5.79 | 5.17 | 1.71 | 8.4 | 5.5 | 146 | 130 | -0.3 | |
| 2014 | DET | 45 | 0 | 32.2 | 0 | 0 | 1 | 42 | 18 | 28 | 13 | 4.96 | 5.18 | 1.68 | 7.7 | 3.6 | 133 | 139 | -0.4 | |
| 2013 | WSH | 32 | 0 | 27.1 | 2 | 1 | 0 | 28 | 12 | 22 | 8 | 3.95 | 4.69 | 1.32 | 7.2 | 2.6 | 102 | 121 | -0.1 |
Batting Regular season
Standard and advanced, by season. Regular-season games only.
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 | 26 | 23 | 7 | 0 | 3 | 3 | .304 | .385 | .391 | .348 | 11.5% |
| vs RHB | 60 | 53 | 16 | 2 | 5 | 15 | .302 | .356 | .509 | .368 | 25.0% |
Pitch sequencing
What Ian Krol throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Ian Krol throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Slider | 135 | 87.3 | 2,415 | 43.7% | 20.5% | 40 | .350 | .956 | |
| Four-Seam Fastball | 64 | 93.6 | 2,387 | 39.1% | 15.0% | 7 | — | — | |
| Sinker | 60 | 94.0 | 2,304 | 53.3% | 17.9% | 11 | — | — | |
| Changeup | 47 | 85.1 | 1,800 | 40.4% | 35.7% | 13 | — | — | |
| Curveball | 40 | 78.0 | 2,527 | 52.5% | 38.5% | 5 | — | — |
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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.