Zac Grotz
P | Bats/Throws: R/R | 6' 2" 195LBS | Age: 31
Draft: 2015 | Rd: 28, #829, Houston Astros | Embry-Riddle University
W L ERA G GS SV IP SO WHIP
2019 1 0 4.15 14 0 0 17.1 18 1.27
2020 0 0 14.73 5 0 0 7.1 4 3.00
2 Seasons 1 0 7.30 19 0 0 24.2 22 1.78
G W-L ERA IP SO WHIP
2019 14 1-0 4.15 17.1 18 1.27
2020 5 0-0 14.73 7.1 4 3.00
2 Seasons 19 1-0 7.30 24.2 22 1.78
MLB Percentile Rankings
Movement Profile (Induced Break)
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Statcast Statistics

Season Age Pitches Batted
Balls		 Barrels Barrel % Barrel/PA Exit
Velocity		 Max EV Launch
Angle		 LA Sweet-
Spot %		 XBA XSLG WOBA XWOBA XWOBACON HardHit% K% BB% ERA xERA
2019 26 299 46 1 2.2 1.4 89.4 111.7 2.5 30.4 .240 .303 .261 .286 .327 32.6 24.7 11.0 4.15 3.56
2020 27 202 27 3 11.1 6.5 87.9 111.9 12.4 40.7 .303 .616 .552 .500 .459 44.4 8.7 23.9 14.73 13.51
Player 501 73 4 5.5 3.4 88.8 111.9 6.2 34.2 .261 .404 .374 .370 .376 37.0 18.5 16.0
MLB 7.0 4.8 88.5 122.4 12.3 33.2 .245 .405 .316 .315 .368 36.5 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Grotz relies on 4 pitches.
Sinker
(53.0%) ,
Curveball
(20.8%) ,
Split Finger
(20.3%) ,
Slider
(5.9%) ,


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Pitch Tracking



Batted Ball Profile

Season GB % FB % LD % PU % Pull % Straight % Oppo % Weak % Topped % Under % Flare/Burner % Solid % Barrel % Barrel/PA
2019 65.2 8.7 23.9 2.2 54.3 30.4 15.2 2.2 52.2 10.9 28.3 4.3 2.2 1.4
2020 40.7 14.8 29.6 14.8 37.0 33.3 29.6 7.4 33.3 18.5 18.5 11.1 11.1 6.5
Player 56.2 11.0 26.0 6.8 47.9 31.5 20.5 4.1 45.2 13.7 24.7 6.8 5.5 3.4
MLB 44.4 23.8 24.7 7.1 37.2 37.5 25.2 3.9 32.6 24.8 24.4 5.9 7.0 4.8
! Note: All figures in this table cover the period 2015-present.

Pitch Movement

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How this works: This section shows two different ways to evaluate pitch movement. On the left, “Total Movement” shows the real-world movement of a pitch, including the forces of gravity, which affects every pitch thrown. Since gravity requires time, and slower pitches aren't 'better' just because they have more time to move, a pitch's movement is compared to other pitches of the same pitch type, within +/- 2 MPH and +/- 0.5 feet of extension/release. On the right, Induced Movement (or IVB) is reported without gravity, and attempts to isolate movement created by the pitcher's ability to spin and manipulate the ball.
Total Movement (in inches, w/ gravity)Induced Movement (in inches, w/o gravity)
YearPitchTeamHand#MPHVertical
Drop		vs.
Comparable		Horizontal
Break		vs.
Comparable		Vertical
Break		vs. AvgHorizontal
Break		vs. Avg
2020 Split-Finger SEA R 41 82.1 45.2 0.4 10.4ARM -0.1 -4.5 9.1 10.4ARM -0.5
2020 Curveball SEA R 41 81.7 41.2 -5.0 8.9GLV -2.6 -0.3 -9.5 8.9GLV -0.2
2020 Slider SEA R 12 85.9 33.3 -1.6 1.1GLV -3.0 4.0 -2.6 1.1GLV -4.2
2020 Sinker SEA R 107 91.6 24.9 -1.3 14.6ARM -1.6 7.8 1.3 14.6ARM -0.2
2019 Split-Finger SEA R 120 82.3 43.8 2.4 7.8ARM -0.9 -3.1 7.5 7.8ARM -2.2
2019 Sinker SEA R 36 91.0 27.4 2.4 15.8ARM 0.8 4.8 4.3 15.8ARM 0.9
2019 Slider SEA R 26 87.7 29.0 -3.4 0.7ARM -4.5 6.2 -4.4 0.7ARM -5.8
2019 Curveball SEA R 8 81.3 43.2 -6.4 11.5GLV 0.4 -1.2 -8.5 11.5GLV 2.3
2019 4-Seam Fastball SEA R 107 92.2 18.9 -1.8 11.5ARM 3.4 12.8 -2.8 11.5ARM 4.0
! Note: Years are in reverse order.

Run Values by Pitch Type

Year Pitch Type Team RV/100 Run Value Pitches % PA BA SLG wOBA Whiff% K% PutAway % xBA xSLG xwOBA Hard Hit %
2020 Sinker -1.5 -2 107 53.0 23 .308 .462 .461 7.1 4.3 3.3 .310 .512 .513 38.5
2020 Curveball -11.8 -5 42 20.8 8 .800 2.000 .988 37.5 0.0 0.0 .431 1.128 .653 60.0
2020 Split-Finger -5.2 -2 41 20.3 12 .222 .556 .417 22.7 25.0 12.5 .215 .358 .357 50.0
2020 Slider -6.4 -1 12 5.9 3 .333 1.333 .667 20.0 0.0 0.0 .327 .989 .534 33.3
2019 Split-Finger 1.3 2 121 40.5 27 .192 .231 .206 28.6 22.2 12.2 .290 .351 .294 35.0
2019 4-Seam Fastball 1.3 1 107 35.8 30 .250 .292 .308 11.6 36.7 26.8 .208 .284 .293 28.6
2019 Sinker 2.4 1 36 12.0 10 .333 .444 .375 23.5 10.0 11.1 .186 .235 .234 25.0
2019 Slider 3.8 1 26 8.7 4 .000 .000 .175 0.0 0.0 0.0 .206 .227 .326 33.3
2019 Curveball 4.0 0 8 2.7 1 .000 .000 .000 25.0 0.0 0.0 .311 .351 .280 100.0
! Note: Years are in reverse order.
! Note: To better align with other values, positive numbers (red) are good, and negative numbers (blue) are poor.

Spin Direction

Year Pitch Type Pitches MPH Active Spin % Total Movement (In.) Spin-Based Observed Deviation
2020 Curveball 41 81.7 36 9.9 7:30 8:30 -60
2020 Split-Finger 41 82.1 94 12.9 3:15 4:00 -45
2020 Sinker 95 91.6 94 16.7 2:15 2:15 0
2020 Slider 12 85.9 11 2.9 11:00 11:15 -15
! Note: Years are in reverse order.
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! Note: This table is showing data from the PITCHER perspective.
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Pitcher Arm Angle

! Note: Data is available from 2020 through the present.
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Statcast Pitching Run Value

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2019 72 298 4 5 -3 -1 5
2020 46 202 -5 0 -2 -3 -9
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Plate Discipline

Season Pitches Zone % Zone Swing % Zone Contact % Chase % Chase Contact % Edge % 1st Pitch Strike % Swing % Whiff % Meatball % Meatball Swing %
2019 299 46.2 58.0 88.8 29.8 64.6 37.5 63.9 42.8 20.3 8.4 68.0
2020 202 40.1 50.6 92.7 24.8 63.3 41.1 47.8 35.1 19.7 5.9 58.3
Player 501 43.7 55.3 90.1 27.7 64.1 38.9 57.6 39.7 20.1 7.4 64.9
MLB 48.7 67.0 82.0 28.5 57.8 42.6 61.0 47.2 25.0 7.3 76.3
! Note: All figures in this table cover the period 2015-present.

Percentile Rankings

Year xwOBA /
xERA 		xBA xSLG xISO xOBP Brl Brl% EV Hard
Hit% 		K% BB% Whiff% Chase
Rate 		FB
Velo 		FB
Spin 		CB
Spin 		Extension
2019 29 3 92
2020 24 6 80
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Expected Home Runs

Adjusted
Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %
2020 24.0 4 3.3 1 0 2 2 50.0
Player 24.0 4 3.3 1 0 2 2 50.0
Note: xHR tells how many of this pitcher's home runs allowed would have been out of other stadiums. The "Adjusted" view here accounts for different wall heights, distances and environmental effects using Statcast Park Factor data.
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Expected Home Runs by Park

Adjusted
Year HR
2020 4 4 2 3 4 3 4 3 4 3 3 4 3 3 4 3 3 3 3 4 3 3 4 3 3 2 4 4 3 4 3
Player 4 4 2 3 4 3 4 3 4 3 3 4 3 3 4 3 3 3 3 4 3 3 4 3 3 2 4 4 3 4 3
Note: xHR tells how many of this pitcher's home runs allowed would have been out of other stadiums. The "Adjusted" view here accounts for different wall heights, distances and environmental effects using Statcast Park Factor data.
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Year to Year Changes

Metric 2019 2020 +/-  
Fastball Velocity 91.9 91.6 -0.3 ↓
Offspeed Velocity 82.3 82.1 -0.2 ↓
Breaking Velocity 86.2 82.7 -3.5 ↓
Exit Velocity 89.4 87.9 -1.5 ↓
Launch Angle 2.5 12.4 9.9 ↑
Barrel % 2.2 11.1 8.9 ↑
Hard Hit % 32.6 44.4 11.8 ↑
LA Sweet-Spot % 30.4 40.7 10.3 ↑
xBA .240 .303 0.063 ↑
BA .222 .367 0.145 ↑
xwOBA .286 .500 0.214 ↑
wOBA .261 .552 0.291 ↑
xSLG .303 .616 0.313 ↑
SLG .270 .833 0.563 ↑
K% 24.7 8.7 -16.0 ↓
BB% 11.0 23.9 12.9 ↑
Swing % 42.8 35.1 -7.7 ↓
Whiff% 20.3 19.7 -0.6 ↓
In Zone % 46.2 40.1 -6.1 ↓
Out of Zone % 53.8 59.9 6.1 ↑
Out of Zone Swing % 29.8 24.8 -5.0 ↓
First Pitch Swing % 20.8 15.2 -5.6 ↓
First Pitch Strike % 63.9 47.8 -16.1 ↓
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2019 Shifts 72 .261 45 0 0.0 27 12 44.4
2020 Shifts 46 .552 38 6 15.8 8 7 87.5
! Note: Shifts are through the 2022 season, Shaded starting from the 2023 season, Shift: three or more infielders are on the same side of second base, Shade: positioned outside of their typical responsible slices of the field.
Learn more about how positioning is defined here

Pitch Tempo

Bases EmptyRunners On Base
SeasonTeamPitchesTempoFast %Slow %PitchesTempoFast %Slow %
2019 89 16.2 37.1% 1.1% 46 21.3 0.0% 6.5%
2020 40 16.9 27.5% 0.0% 70 22.2 0.0% 12.9%

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Pitch Distribution

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