Jhonathan Diaz
P | Bats/Throws: L/L | 6' 0" 170LBS | Age: 27
W L ERA G GS SV IP SO WHIP
2021 1 0 4.15 3 2 0 13 9 1.38
2022 1 1 2.93 4 3 0 15.1 11 1.50
2023 0 0 10.29 4 1 0 7 4 2.86
3 Seasons 2 1 4.84 11 6 0 35.1 24 1.73
G W-L ERA IP SO WHIP
2021 3 1-0 4.15 13 9 1.38
2022 4 1-1 2.93 15.1 11 1.50
2023 4 0-0 10.29 7 4 2.86
3 Seasons 11 2-1 4.84 35.1 24 1.73
MLB Percentile Rankings
Pitch Distribution

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
2021 24 237 42 4 9.5 6.8 86.5 104.7 10.3 40.5 .276 .443 .302 .365 .381 33.3 15.3 11.9 4.15 5.88
2022 25 236 45 2 4.4 3.0 91.3 109.7 10.0 37.8 .255 .392 .324 .337 .342 46.7 16.7 15.2 2.94 4.81
2023 26 160 29 1 3.4 2.4 87.9 109.6 12.0 31.0 .305 .435 .467 .395 .353 34.5 9.5 16.7 10.29 7.08
Player 633 116 7 6.0 4.2 88.7 109.7 10.6 37.1 .274 .421 .352 .362 .359 38.8 14.4 14.4
MLB 6.9 4.7 88.4 122.4 12.2 33.1 .245 .406 .316 .315 .369 36.3 22.1 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Diaz relies on 5 pitches.
Four Seamer
(33.1%) ,
Slider
(32.5%) ,
Changeup
(18.1%) ,
Sinker
(11.3%) ,
Curveball
(5.0%) ,


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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
2021 42.9 26.2 23.8 7.1 31.0 38.1 31.0 4.8 38.1 21.4 23.8 2.4 9.5 6.8
2022 51.1 22.2 20.0 6.7 46.7 28.9 24.4 2.2 35.6 26.7 26.7 4.4 4.4 3.0
2023 44.8 27.6 20.7 6.9 51.7 37.9 10.3 3.4 31.0 27.6 27.6 6.9 3.4 2.4
Player 46.6 25.0 21.6 6.9 42.2 34.5 23.3 3.4 35.3 25.0 25.9 4.3 6.0 4.2
MLB 44.6 23.5 24.9 7.0 37.0 37.6 25.3 3.9 32.9 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 Sinker LAA L 18 88.1 31.9 3.3 12 14.6 -0.8 -5
2023 Curveball LAA L 8 76.7 59.9 2.3 4 11.3 1.5 15
2023 Slider LAA L 52 80.6 39.0 -2.0 -5 12.0 2.7 29
2023 Changeup LAA L 29 81.9 38.1 2.3 7 13.7 0.0 0
2023 4-Seam Fastball LAA L 53 90.8 20.6 -3.2 -18 9.3 2.4 34
2022 4-Seam Fastball LAA L 62 91.4 19.9 -3.2 -19 11.4 3.8 51
2022 Sinker LAA L 56 88.7 30.3 3.9 15 16.9 1.8 12
2022 Curveball LAA L 20 74.7 61.9 0.2 0 9.8 -1.0 -9
2022 Changeup LAA L 38 80.7 40.3 4.5 13 13.3 -1.6 -11
2022 Slider LAA L 60 80.6 40.5 -0.2 -1 13.0 3.6 39
2021 Changeup LAA L 33 81.6 40.3 5.8 17 14.3 0.2 2
2021 Curveball LAA L 4 74.4 63.9 2.5 4 9.8 -0.8 -7
2021 Sinker LAA L 66 87.7 30.6 4.3 16 17.9 3.1 21
2021 Slider LAA L 69 79.0 44.5 0.9 2 15.8 5.7 56
2021 4-Seam Fastball LAA L 65 89.9 18.7 -1.7 -10 9.6 2.5 36
! 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 4-Seam Fastball -4.7 -2 53 33.1 12 .250 .375 .488 11.1 8.3 9.1 .228 .316 .390 28.6
2023 Slider -2.5 -1 52 32.5 13 .400 .600 .438 40.0 23.1 20.0 .282 .346 .318 50.0
2023 Changeup -14.2 -4 29 18.1 10 .625 .875 .590 6.7 0.0 0.0 .363 .661 .452 44.4
2023 Sinker -9.7 -2 18 11.3 6 .500 .500 .533 0.0 0.0 0.0 .476 .546 .534 0.0
2023 Curveball 6.8 1 8 5.0 1 .000 .000 .000 0.0 0.0 0.0 .009 .011 .009 0.0
2022 4-Seam Fastball -4.0 -3 62 26.3 17 .385 .462 .450 12.5 11.8 15.4 .262 .489 .407 54.5
2022 Slider 4.8 3 60 25.4 17 .000 .000 .082 40.6 41.2 33.3 .184 .207 .235 25.0
2022 Sinker 0.3 0 56 23.7 15 .364 .545 .473 5.0 0.0 0.0 .289 .390 .398 63.6
2022 Changeup -2.5 -1 38 16.1 13 .308 .692 .415 23.8 15.4 25.0 .309 .535 .360 36.4
2022 Curveball 3.8 1 20 8.5 4 .000 .000 .000 0.0 0.0 -- .211 .268 .202 50.0
2021 Slider 1.5 1 69 29.1 22 .222 .278 .307 37.5 27.3 30.0 .244 .332 .331 25.0
2021 Sinker 0.5 0 66 27.8 13 .364 .818 .523 20.6 23.1 20.0 .423 .874 .568 50.0
2021 4-Seam Fastball -1.5 -1 65 27.4 14 .167 .250 .318 3.6 0.0 0.0 .207 .343 .301 41.7
2021 Changeup 0.3 0 33 13.9 9 .111 .111 .200 13.3 0.0 0.0 .252 .275 .230 11.1
2021 Curveball 4.0 0 4 1.7 1 -- -- .000 0.0 0.0 0.0 -- -- .650 100.0
! Note: Years are in reverse order.
! Note: To better align with other values, positive numbers (red) are good, and negative numbers (blue) are poor.
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Spin Direction

Year Pitch Type Pitches MPH Active Spin % Total Movement (In.) Spin-Based Observed Deviation
2023 Changeup 29 81.9 86 14.5 10:00 9:15 45
2023 4-Seam Fastball 53 90.8 87 15.4 10:15 10:45 -30
2023 Sinker 18 88.1 70 15.5 10:15 9:15 60
2023 Slider 52 80.6 41 13.3 3:30 2:45 45
2022 Changeup 38 80.7 83 14.0 10:00 9:00 60
2022 Curveball 19 74.6 65 18.6 4:30 5:00 -30
2022 4-Seam Fastball 62 91.4 93 17.2 10:15 10:30 -15
2022 Sinker 53 88.7 88 18.2 10:00 9:30 30
2022 Slider 60 80.6 40 14.0 3:45 3:00 45
2021 Changeup 32 81.5 79 15.0 10:00 9:00 60
2021 4-Seam Fastball 65 89.9 90 17.7 10:30 10:45 -15
2021 Sinker 65 87.7 87 19.1 10:15 9:30 45
2021 Slider 67 78.9 54 17.0 3:45 3:15 30
! 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
2021 59 237 2 4 -4 -1 1
2022 66 236 2 0 0 -2 0
2023 42 160 -3 -3 -2 -1 -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 %
2021 237 47.7 64.6 87.7 29.8 64.9 43.0 52.5 46.4 20.0 10.5 72.0
2022 236 40.7 68.8 89.4 25.0 54.3 37.7 47.0 42.8 21.8 8.9 66.7
2023 160 41.9 64.2 88.4 24.7 65.2 41.3 64.3 41.3 19.7 6.3 60.0
Player 633 43.6 65.9 88.5 26.6 61.1 40.6 53.3 43.8 20.6 8.8 67.9
MLB 48.6 67.0 82.0 28.5 58.0 42.6 60.9 47.1 24.8 7.3 76.1
! 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
2021 4 19 54
2022 7 27 79
2023 7 30 54
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Expected Home Runs

Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %
2021 22.5 1 1.1 0 1 1 0 0.0
2022 22.3 1 1.1 0 1 1 0 0.0
2023 -- 0 0.8 -1 1 1 0 --
Player 22.4 2 3.1 -1 3 3 0 0.0

Expected Home Runs by Park

Year HR
2021 1 2 1 0 1 1 1 1 1 1 1 1 1 1 1 2 1 1 2 1 1 2 1 2 0 1 2 1 1 1 1
2022 1 0 1 1 1 2 2 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1
2023 0 0 1 1 1 1 1 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 0 1 1
Player 2 2 3 2 3 4 4 2 3 3 3 4 2 3 3 4 3 3 4 3 3 4 3 4 1 3 4 4 2 4 3
! 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 2021 2022 +/-   2023 +/-  
Fastball Velocity 88.8 90.1 1.3 90.1 0.0
Offspeed Velocity 81.6 80.7 -0.9 81.9 1.2
Breaking Velocity 78.7 79.1 0.4 80.1 1.0
Exit Velocity 86.5 91.3 4.8 87.9 -3.4
Launch Angle 10.3 10.0 -0.3 12.0 2.0
Barrel % 9.5 4.4 -5.1 3.4 -1.0
Hard Hit % 33.3 46.7 13.4 34.5 -12.2
Sweet Spot % 40.5 37.8 -2.7 31.0 -6.8
xBA .276 .255 -0.021 .305 0.050
BA .220 .236 0.016 .419 0.183
xwOBA .365 .337 -0.028 .395 0.058
wOBA .302 .324 0.022 .467 0.143
xSLG .443 .392 -0.051 .435 0.043
SLG .360 .382 0.022 .581 0.199
K% 15.3 16.7 1.4 9.5 -7.2
BB% 11.9 15.2 3.3 16.7 1.5
Swing % 46.4 42.8 -3.6 41.3 -1.5
Whiff% 20.0 21.8 1.8 19.7 -2.1
In Zone % 47.7 40.7 -7.0 41.9 1.2
Out of Zone % 52.3 59.3 7.0 58.1 -1.2
Out of Zone Swing % 29.8 25.0 -4.8 24.7 -0.3
First Pitch Swing % 23.7 31.8 8.1 28.6 -3.2
First Pitch Strike % 52.5 47.0 -5.5 64.3 17.3
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2021 Shifts 59 .302 37 5 13.5 22 14 63.6
2022 Shifts 66 .324 54 16 29.6 12 9 75.0
2023 Shades 42 .467 28 0 0.0 14 5 35.7
! 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 %
2021 72 15.9 37.5% 1.4% 40 24.6 0.0% 12.5%
2022 70 15.0 48.6% 0.0% 43 26.2 0.0% 20.9%
2023 27 13.1 88.9% 0.0% 50 17.3 4.0% 0.0%
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Pitch Distribution