Zack Weiss
P | Bats/Throws: R/R | 6' 3" 210LBS | Age: 31
Draft: 2013 | Rd: 6, #195, Cincinnati Reds | UCLA
W L ERA G GS SV IP SO WHIP
2018 0 0 -.-- 1 0 0 0 0 -.--
2022 0 1 3.38 12 0 0 13.1 18 1.05
2023 1 0 3.21 12 0 0 14 15 1.07
3 Seasons 1 1 4.61 25 0 0 27.1 33 1.21
G W-L ERA IP SO WHIP
2018 1 0-0 -.-- 0 0 -.--
2022 12 0-1 3.38 13.1 18 1.05
2023 12 1-0 3.21 14 15 1.07
3 Seasons 25 1-1 4.61 27.1 33 1.21
MLB Percentile Rankings
Pitch Distribution

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
2018 26 15 2 2 100.0 50.0 110.4 113.7 25.9 50.0 .954 3.386 1.360 1.223 1.756 100.0 0.0 50.0 0.00 0.00
2022 30 209 30 3 10.0 5.4 88.3 106.8 22.4 30.0 .168 .269 .247 .242 .299 36.7 32.1 12.5 3.38 2.39
2023 31 226 36 4 11.1 6.9 89.2 108.3 16.7 41.7 .241 .433 .305 .330 .396 44.4 25.9 10.3 3.21 4.64
Player 450 68 9 13.2 7.6 89.4 113.7 19.4 36.8 .221 .416 .315 .321 .395 42.6 28.0 12.7
MLB 6.9 4.7 88.5 122.4 12.2 33.1 .245 .406 .316 .315 .368 36.4 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Weiss relies on 3 pitches.
Slider
(63.7%) ,
Four Seamer
(29.2%) ,
Cutter
(7.1%) ,


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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
2018 0.0 50.0 50.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 100.0 50.0
2022 36.7 30.0 20.0 13.3 46.7 36.7 16.7 6.7 23.3 33.3 20.0 6.7 10.0 5.4
2023 33.3 33.3 27.8 5.6 25.0 50.0 25.0 0.0 25.0 33.3 25.0 5.6 11.1 6.9
Player 33.8 32.4 25.0 8.8 36.8 42.6 20.6 2.9 23.5 32.4 22.1 5.9 13.2 7.6
MLB 44.6 23.6 24.8 7.0 37.1 37.5 25.3 3.9 32.8 24.7 24.4 5.8 6.9 4.7
! Note: All figures in this table cover the period 2015-present.

Pitch Movement


How this works: Every pitch is affected by the forces of gravity, which means that every pitch drops on its way from the mound to the plate. These numbers are reported with gravity, which makes them larger and different than other pitch movement numbers you may have seen. Since gravity requires time, and slower pitches aren’t ‘better’ just because they have more time to move, the movement of a pitch is compared to ‘average’ movement by comparing it to other MLB pitch types within +/- 2 MPH and from within +/- 0.5 feet of extension and release.
Vertical Movement (inches) Horizontal Movement (inches)
Year Pitch Team Hand # MPH Inches of Drop vs Avg % vs Avg Inches of Break vs Avg % Break vs Avg
2023 Slider BOS R 144 83.8 38.3 0.4 1 13.5 7.4 119
2023 Cutter BOS R 16 88.3 32.0 -4.2 -15 3.4 0.7 24
2023 4-Seam Fastball BOS R 66 94.1 12.7 2.5 16 4.5 -3.0 -40
2022 Slider LAA R 127 86.6 33.4 -1.0 -3 9.4 5.1 117
2022 Cutter LAA R 13 90.9 25.9 -1.8 -7 2.4 0.3 13
2022 Sinker LAA R 3 94.0 19.2 -2.6 -12 15.0 -0.1 -1
2022 4-Seam Fastball LAA R 66 94.6 11.8 2.7 18 5.0 -2.5 -33
2018 Slider CIN R 2 83.2 40.4 0.2 0 6.0 0.1 3
2018 4-Seam Fastball CIN R 12 93.8 12.8 3.2 20 7.8 -0.2 -3
2018 Changeup CIN R 1 86.7 21.2 -9.4 -31 14.5 0.4 3
! Note: Years are in reverse order.
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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 %
2023 Slider 2.5 4 144 63.7 39 .121 .333 .271 33.8 28.2 24.4 .208 .406 .309 34.8
2023 4-Seam Fastball -1.0 -1 66 29.2 15 .385 .846 .540 12.0 13.3 11.8 .373 .603 .453 72.7
2023 Cutter 4.2 1 16 7.1 4 .000 .000 .000 20.0 50.0 25.0 .085 .102 .081 0.0
2022 Slider 1.1 1 127 60.8 34 .103 .207 .215 46.7 41.2 41.2 .132 .211 .231 25.0
2022 4-Seam Fastball -0.4 0 66 31.6 17 .286 .571 .403 29.0 11.8 16.7 .270 .440 .352 53.8
2022 Cutter 6.1 1 13 6.2 3 .000 .000 .000 66.7 66.7 66.7 .034 .035 .032 0.0
2022 Sinker -0.8 0 3 1.4 -- -- -- 0.0 -- -- -- -- -- --
2018 4-Seam Fastball -23.1 -3 12 80.0 4 1.000 4.000 1.350 0.0 0.0 -- .954 3.386 1.228 100.0
2018 Slider -3.6 0 2 13.3 -- -- -- -- -- -- -- -- -- --
2018 Changeup -10.6 0 1 6.7 -- -- -- -- -- -- -- -- -- --
! Note: Years are in reverse order.
! Note: To better align with other values, positive numbers (red) are good, and negative numbers (blue) are poor.
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Spin Direction

Year Pitch Type Pitches MPH Active Spin % Total Movement (In.) Spin-Based Observed Deviation
2023 Cutter 16 88.3 29 4.2 10:45 10:00 45
2023 4-Seam Fastball 62 94.1 84 18.4 12:45 12:30 15
2023 Slider 131 83.8 46 14.5 8:00 8:45 -45
2022 Cutter 13 90.9 46 8.0 11:30 11:00 30
2022 4-Seam Fastball 65 94.6 86 19.1 12:45 12:30 15
2022 Slider 125 86.6 33 10.3 8:30 9:30 -60
! Note: This table is showing data from the PITCHER perspective.
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Swing/Take

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2022 54 209 4 2 -1 -2 2
2023 58 226 2 4 -1 -1 4
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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 %
2018 15 20.0 66.7 100.0 0.0 -- 26.7 0.0 13.3 0.0 6.7 100.0
2022 209 44.5 64.5 75.0 30.2 31.4 45.0 50.0 45.5 41.1 7.2 80.0
2023 226 46.3 60.0 88.9 32.8 47.5 40.1 56.9 45.6 27.2 8.8 65.0
Player 450 44.6 62.2 82.4 30.0 40.0 41.9 51.7 44.4 33.5 8.0 72.2
MLB 48.6 67.0 82.0 28.4 57.9 42.6 60.9 47.2 24.8 7.3 76.2
! 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
2022 63 93 34
2023 51 91 44
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Expected Home Runs

Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %
2018 24.7 2 2.0 0 0 1 1 50.0
2022 25.2 2 2.4 0 0 3 0 0.0
2023 22.4 4 3.9 0 0 4 1 25.0
Player 23.7 8 8.3 0 0 8 2 25.0

Expected Home Runs by Park

Year HR
2018 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
2022 2 2 0 1 3 3 3 2 2 2 3 2 2 2 3 3 2 2 3 3 2 2 3 2 1 3 3 3 3 3 3
2023 4 3 4 3 3 5 4 2 3 4 4 4 5 4 4 4 5 2 4 4 4 3 5 5 5 3 3 5 5 5 4
Player 8 7 5 6 8 10 9 6 7 8 9 8 9 8 9 9 9 6 9 9 8 7 10 9 8 8 8 10 10 10 9
! Note: This tells how many of this player's home runs would have been out of other stadiums. This accounts for different wall heights, distances and environmental effects. For these purposes, the 2020 Blue Jays home field was still Rogers Centre, not Sahlen Field.
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Year to Year Changes

Metric 2022 2023 +/-  
Fastball Velocity 94.0 92.9 -1.1
Offspeed Velocity 0.0 0.0 0.0
Breaking Velocity 86.6 83.8 -2.8
Exit Velocity 88.3 89.2 0.9
Launch Angle 22.4 16.7 -5.7
Barrel % 10.0 11.1 1.1
Hard Hit % 36.7 44.4 7.7
LA Sweet-Spot % 30.0 41.7 11.7
xBA .168 .241 0.073
BA .152 .180 0.028
xwOBA .242 .330 0.088
wOBA .247 .305 0.058
xSLG .269 .433 0.164
SLG .304 .440 0.136
K% 32.1 25.9 -6.2
BB% 12.5 10.3 -2.2
Swing % 45.5 45.6 0.1
Whiff% 41.1 27.2 -13.9
In Zone % 44.5 46.3 1.8
Out of Zone % 55.5 53.7 -1.8
Out of Zone Swing % 30.2 32.8 2.6
First Pitch Swing % 24.1 22.4 -1.7
First Pitch Strike % 50.0 56.9 6.9
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2018 Shifts 4 1.360 3 0 0.0 1 0 0.0
2022 Shifts 54 .247 30 7 23.3 24 14 58.3
2023 Shades 58 .305 40 2 5.0 18 13 72.2
! 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 %
2018 7 18.9 0.0% 14.3% 3 19.0 0.0% 0.0%
2022 48 20.0 0.0% 2.1% 47 22.4 0.0% 2.1%
2023 58 16.2 17.2% 0.0% 43 19.2 2.3% 0.0%
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Pitch Distribution