Poor Avg Great

Stats

W L ERA G GS SV IP SO WHIP
2021 3 1 3.64 25 2 1 42.0 46 1.19
4 Seasons 5 2 5.47 72 5 1 108.2 113 1.44
G W-L ERA IP SO WHIP
2021 25 3-1 3.64 42.0 46 1.19
4 Seasons 72 5-2 5.47 108.2 113 1.44

Statcast Statistics

Season Age Pitches Batted Balls Barrels Barrel % Barrel/PA Exit Velocity Max EV Launch Angle Sweet Spot % XBA XSLG WOBA XWOBA XWOBACON HardHit% K% BB% ERA xERA
2017 22 774 131 13 9.9 6.8 87.3 114.7 12.8 36.6 .244 .459 .390 .355 .372 31.3 17.2 13.0 7.34 5.59
2018 23 347 43 2 4.7 2.4 88.9 109.1 17.3 30.2 .177 .307 .311 .267 .355 39.5 35.3 14.1 4.82 2.97
2019 24 102 22 1 4.5 3.4 88.4 105.5 14.3 50.0 .299 .485 .439 .368 .388 31.8 13.8 3.4 7.11 6.24
2021 26 695 107 12 11.2 7 90.5 111.4 11.7 37.4 .253 .460 .312 .346 .433 43.9 26.7 11.0 3.64 5.19
Player 1918 303 28 9.2 5.9 88.8 114.7 13.1 37.0 .239 .435 .351 .337 .392 37.0 23.6 11.9
MLB 6.7 4.6 88.4 122.2 12.1 32.9 .246 .410 .317 .317 .370 35.7 22.0 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Diaz relies on 3 pitches.
Changeup
(51.9%) ,
4-Seam Fastball
(46.2%) ,
Slider
(1.9%) ,


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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
2017 41.2 25.2 24.4 9.2 29.8 31.3 38.9 3.8 31.3 29.0 20.6 4.6 9.9 6.8
2018 34.9 34.9 23.3 7.0 44.2 30.2 25.6 2.3 20.9 32.6 30.2 9.3 4.7 2.4
2019 36.4 27.3 31.8 4.5 36.4 45.5 18.2 0.0 36.4 27.3 22.7 9.1 4.5 3.4
2021 42.1 25.2 28.0 4.7 37.4 38.3 24.3 3.7 33.6 18.7 22.4 10.3 11.2 7.0
Player 40.3 26.7 26.1 6.9 35.0 34.7 30.4 3.3 31.0 25.7 22.8 7.6 9.2 5.9
MLB 45.0 22.9 25.1 7.1 36.7 37.8 25.4 3.8 33.1 24.5 24.4 5.7 6.7 4.6
! 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
2021 4-Seamer SD R 321 94.4 15.7 -0.7 -5 12.9 5.4 73
2021 Changeup SD R 361 86.0 33.6 3.4 11 17.3 3.3 24
2021 Slider SD R 13 87.9 30.2 -2.6 -8 2.7 -0.8 -23
2019 4-Seamer SD R 54 94.7 16.7 -1.1 -7 8.9 0.9 11
2019 Curveball SD R 12 84.9 41.0 -5.9 -13 7.5 1.1 18
2019 Changeup SD R 13 87.3 30.5 0.5 2 14.6 0.6 5
2019 Slider SD R 23 88.7 30.6 -2.2 -7 3.8 0.2 7
2018 Slider SD R 69 85.1 38.8 1.3 4 5.8 0.8 16
2018 4-Seamer SD R 185 95.6 14.9 0.3 2 10.5 2.4 30
2018 Curveball SD R 14 82.0 42.8 -8.9 -17 12.4 4.7 61
2018 Changeup SD R 72 87.4 30.7 0.7 2 13.8 -0.1 -1
2018 Sinker SD R 7 94.7 21.4 0.1 1 15.0 0.1 0
2017 4-Seamer SD R 152 95.9 12.7 0.7 5 8.6 0.0 0
2017 Slider SD R 155 82.1 45.4 4.2 10 7.6 0.9 13
2017 Changeup SD R 114 88.2 27.5 -1.1 -4 16.7 2.9 21
2017 Sinker SD R 352 95.7 16.6 -3.5 -17 16.7 0.7 4
! 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 %
2021 Changeup -0.5 -2 361 51.9 92 .190 .417 .307 23.6 28.3 22.8 .236 .436 .317 39.0
2021 4-Seamer -0.4 -1 321 46.2 79 .224 .463 .362 16.9 25.3 25.0 .276 .496 .384 51.1
2021 Slider 2.7 0 13 1.9 1 .000 .000 .000 50.0 0.0 0.0 .076 .082 .097 0.0
2019 4-Seamer -2.4 -1 54 52.9 16 .214 .286 .278 12.5 12.5 14.3 .266 .481 .360 50.0
2019 Slider 2.8 1 23 22.5 6 .400 .600 .475 16.7 16.7 20.0 .195 .434 .328 25.0
2019 Changeup 8.0 1 13 12.7 4 .750 1.500 .938 25.0 0.0 0.0 .614 .707 .577 0.0
2019 Curveball 8.2 1 12 11.8 3 .333 1.333 .667 40.0 33.3 25.0 .207 .293 .203 0.0
2018 4-Seamer -1.5 -3 185 53.3 45 .216 .459 .326 33.7 42.2 30.2 .188 .388 .306 50.0
2018 Changeup 1.2 1 72 20.7 15 .286 .429 .333 41.2 33.3 26.3 .203 .298 .248 33.3
2018 Slider 1.8 1 69 19.9 18 .133 .267 .294 44.8 27.8 21.7 .137 .171 .267 30.0
2018 Curveball -3.3 0 14 4.0 3 .000 .000 .000 20.0 33.3 14.3 .033 .039 .032 0.0
2018 Sinker 6.1 0 7 2.0 2 1.000 1.000 .900 0.0 0.0 -- .282 .307 .264 50.0
2017 Sinker 2.0 7 352 45.5 88 .304 .551 .435 18.6 11.4 11.4 .281 .506 .408 37.7
2017 Slider 3.4 5 155 20.0 30 .310 .448 .372 27.1 36.7 20.8 .194 .252 .208 22.2
2017 4-Seamer 1.0 2 152 19.6 36 .242 .788 .433 18.1 22.2 24.2 .263 .686 .403 38.5
2017 Changeup 3.1 4 114 14.7 38 .207 .379 .384 28.3 10.5 12.5 .182 .296 .309 15.4
! Note: Years are in reverse order.
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Spin Direction

Year Pitch Type Pitches MPH Active Spin % Total Movement (In.) Spin-Based Observed Deviation
2021 Changeup 359 86.0 93 18.4 2:00 2:45 -45
2021 4-Seam Fastball 321 94.4 97 19.7 1:30 1:30 0
2021 Slider 13 87.9 41 5.9 11:45 10:30 75
! 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
2017 192 773 2 3 8 5 17
2018 83 347 -2 -2 2 2 -1
2019 29 102 0 1 0 1 1
2021 172 695 -4 -10 8 3 -3
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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 %
2017 774 48.0 67.7 81.7 21.1 67.1 41.0 48.4 43.4 21.4 8.2 76.2
2018 347 51.9 68.3 69.9 29.3 46.9 47.3 60.2 49.6 36.0 9.2 78.1
2019 102 52.0 62.3 87.9 20.4 60.0 43.1 65.5 42.2 18.6 5.9 83.3
2021 695 50.6 64.5 86.8 21.0 55.6 42.9 62.8 43.0 20.7 7.3 78.4
Player 1,918 49.9 66.3 81.5 22.5 58.3 42.9 56.7 44.3 24.0 7.9 77.6
MLB 48.5 66.9 82.0 28.3 58.4 42.6 60.7 47.0 24.6 7.2 76.0
! Note: All figures in this table cover the period 2015-present.

Percentile Rankings

Year xwOBA xBA xSLG xISO xOBP Brl Brl% EV HardHit% K% BB% Whiff% xERA FB Velo FB Spin CB Spin
2017 90 61
2018 88 63
2019 75 26
2021 71 38
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Expected Home Runs

Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %
2017 23.6 11 8.8 2 1 6 5 45.5
2018 24.7 2 1.4 1 1 1 1 50.0
2021 25.5 8 9.2 -1 2 5 6 75.0

Expected Home Runs by Park

Year HR
2017 11 10 11 9 9 9 9 8 9 7 9 8 7 7 7 11 8 10 7 8 11 7 8 10 9 9 10 8 8 9 11
2018 2 3 2 1 1 3 1 1 1 1 2 1 1 1 1 1 1 2 1 1 2 1 1 1 1 2 1 1 1 1 3
2021 8 10 11 8 10 10 8 10 9 9 10 11 8 6 8 10 9 10 9 8 8 10 10 10 10 8 9 8 8 10 12
! 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 2015 2016 +/-   2017 +/-   2018 +/-   2019 +/-   2020 +/-   2021 +/-   2022 +/-  
Fastball Velocity 95.8 95.6 -0.2 -0.9
Offspeed Velocity 88.2 87.4 -0.8 -0.1
Breaking Velocity 82.1 84.6 2.5 2.8
Exit Velocity 87.3 88.9 1.6 -0.5
Launch Angle 12.8 17.3 4.5 -3
Barrel % 9.9 4.7 -5.2 -0.2
Hard Hit % 31.3 39.5 8.2 -7.7
Sweet Spot % 36.6 30.2 -6.4 19.8
xBA .244 .177 -0.067 0.122
BA .275 .225 -0.05 0.121
xwOBA .355 .267 -0.088 0.101
wOBA .39 .311 -0.079 0.128
xSLG .459 .307 -0.152 0.178
SLG .55 .408 -0.142 0.246
K% 17.2 35.3 18.1 -21.5
BB% 13 14.1 1.1 -10.7
Swing % 43.4 49.6 6.2 -7.4
Whiff% 21.4 36 14.6 -17.4
In Zone % 48 51.9 3.9 0.1
Out of Zone % 52 48.1 -3.9 -0.1
Out of Zone Swing % 21.1 29.3 8.2 -8.9
First Pitch Swing % 23.4 38.6 15.2 -14.5
First Pitch Strike % 48.4 60.2 11.8 5.3
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Statcast Shift Statistics

vs RHHvs LHH
YearPAwOBAPAShifts%PAShifts%
2017 191 .392 114 6 5.3 77 29 37.7
2018 83 .311 46 0 0.0 37 7 18.9
2019 29 .439 19 3 15.8 10 1 10.0
2021 172 .312 97 0 0.0 75 40 53.3

Pitch Tempo