
Pitcher · 2021
Kyle Zimmer
- Age
- 30
- B/T
- R/R
- Height
- 6' 3"
- Weight
- 225 lb
- Born
- September 13, 1991 in San Francisco, CA, USA
- MLB debut
- March 31, 2019
- dbWAR
- .4 3 season(s)
- IP
- 54.0
- ERA
- 4.83
- FIP
- 4.82
- K/9
- 7.7
- FIP−
- 113 100 = avg
Kyle Zimmer is a relief pitcher for the Kansas City Royals. In 2021 he struck out 46 batters over 54.0 innings across 52 appearances, going 4-1. His ERA of 4.83 was 13.3% higher than the league average of 4.27 — 10th of 19 on his team, and 386th of 567 among MLB pitchers with 20+ innings. Stripping out defence, his 4.82 FIP suggests the ERA was no fluke. He missed bats on 25.0% of swings (10.9% of every pitch he threw), walked 13.5% of the batters he faced and struck out 20.6%. His -0.1 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, 2021.
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 52 | 2 | 54.0 | 4 | 1 | 2 | 46 | 29 | 46 | 30 | 4.83 | 4.82 | 1.41 | 7.7 | 5.0 | 113 | 113 | -0.1 | |
| 2020 | 16 | 1 | 23.0 | 1 | 0 | 0 | 14 | 4 | 26 | 10 | 1.57 | 2.37 | 1.04 | 10.2 | 3.9 | 35 | 53 | 0.6 | |
| 2019 | 15 | 0 | 18.1 | 0 | 1 | 0 | 28 | 22 | 18 | 19 | 10.80 | 5.78 | 2.56 | 8.8 | 9.3 | 240 | 128 | -0.2 |
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 | 96 | 78 | 14 | 1 | 15 | 23 | .179 | .302 | .244 | .260 | 24.0% |
| vs RHB | 127 | 111 | 32 | 6 | 15 | 23 | .288 | .370 | .505 | .374 | 18.1% |
Pitch sequencing
What Kyle Zimmer throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Kyle Zimmer throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2021.
| Four-Seam Fastball | 471 | 94.1 | 2,249 | 44.4% | 16.6% | |
| Slider | 344 | 83.4 | 2,099 | 46.2% | 33.5% | |
| Curveball | 95 | 77.8 | 1,993 | 40.0% | 26.7% | |
| Changeup | 21 | 87.0 | 1,698 | 28.6% | 12.5% |
Head to head
Put Kyle Zimmer beside up to three others.
Similar players
Nearest 2021 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.



