Pitcher · 2020
Zac Grotz
- Age
- 27
- B/T
- R/R
- Height
- 6' 2"
- Weight
- 195 lb
- Born
- February 17, 1993 in San Mateo, CA, USA
- MLB debut
- August 2, 2019
- dbWAR
- -.4 2 season(s)
- IP
- 7.1
- ERA
- 14.73
- FIP
- 15.33
- K/9
- 4.9
- FIP−
- 344 100 = avg
Zac Grotz is a relief pitcher for the Seattle Mariners. In 2020 he struck out 4 batters over 7.1 innings across 5 appearances, going 0-0. His ERA of 14.73 was 230.7% higher than the league average of 4.45. Stripping out defence, his 15.33 FIP suggests that his ERA had some help behind him. He missed bats on 19.7% of swings (6.9% of every pitch he threw), walked 23.9% of the batters he faced and struck out 8.7%. His -0.8 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, 2020.
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 5 | 0 | 7.1 | 0 | 0 | 0 | 11 | 12 | 4 | 11 | 14.73 | 15.33 | 3.00 | 4.9 | 13.5 | 331 | 344 | -0.8 | |
| 2019 | 14 | 0 | 17.1 | 1 | 0 | 0 | 14 | 8 | 18 | 8 | 4.15 | 2.69 | 1.27 | 9.3 | 4.2 | 92 | 60 | 0.4 |
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 | 8 | 7 | 3 | 1 | 1 | 1 | .429 | .500 | 1.000 | .600 | 12.5% |
| vs RHB | 38 | 23 | 8 | 3 | 10 | 3 | .348 | .579 | .783 | .549 | 7.9% |
Pitch sequencing
What Zac Grotz throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Zac Grotz throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2020.
| Sinker | 107 | 91.6 | 1,980 | 41.1% | 7.1% | |
| Curveball | 42 | 81.7 | 2,325 | 45.2% | 37.5% | |
| Splitter | 41 | 82.1 | 1,024 | 41.5% | 22.7% | |
| Slider | 12 | 85.9 | 2,324 | 33.3% | 20.0% |
Head to head
Put Zac Grotz 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.