P | Seattle Mariners
Bats/Throws: L/L | 6' 0" 170 lbs | Age: 29
W L ERA G GS SV IP SO WHIP
2023 0 0 10.29 4 1 0 7 4 2.86
2024 0 1 4.66 5 1 0 9.2 8 1.76
2025 0 0 0.00 1 0 0 1.1 1 0.75
5 Seasons 2 2 4.66 17 7 0 46.1 33 1.71
G W-L ERA IP SO WHIP
2023 4 0-0 10.29 7 4 2.86
2024 5 0-1 4.66 9.2 8 1.76
2025 1 0-0 0.00 1.1 1 0.75
5 Seasons 17 2-2 4.66 46.1 33 1.71
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
2021 24 237 42 4 9.5 6.8 86.5 104.7 10.3 40.5 .275 .443 .302 .365 .380 33.3 15.3 11.9 4.15 5.92
2022 25 236 45 2 4.4 3.0 91.3 109.7 10.0 37.8 .255 .392 .324 .337 .341 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 .304 .434 .467 .394 .353 34.5 9.5 16.7 10.29 7.04
2024 27 166 36 1 2.8 2.1 89.2 109.0 13.9 30.6 .251 .397 .395 .305 .341 36.1 17.0 6.4 4.66 3.88
2025 28 26 4 0 0.0 0.0 84.5 110.8 29.9 25.0 .282 .317 .176 .261 .327 25.0 20.0 0.0 0.00 2.80
Player 825 156 8 5.1 3.7 88.7 110.8 11.9 35.3 .268 .412 .357 .347 .353 37.8 15.1 12.3
MLB 7.2 4.9 88.6 122.9 12.4 33.3 .245 .404 .315 .315 .368 37.0 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Díaz relies on 5 pitches.
Slider
(46.2%) ,
Changeup
(19.2%) ,
Curveball
(11.5%) ,
Sinker
(11.5%) ,
Four Seamer
(11.5%) ,


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Pitch Tracking



Batted Ball Profile

AIR: Fly Balls + Line Drives + Popups All Batted Balls Batted Ball Breakdown
Season GB % AIR % FB % LD % PU % Pull % Straight % Oppo % Pull GB % Straight GB % Oppo GB % Pull AIR % Straight AIR % Oppo AIR %
2021 42.9 57.1 26.2 23.8 7.1 31.0 38.1 31.0 23.8 16.7 2.4 7.1 21.4 28.6
2022 51.1 48.9 22.2 20.0 6.7 46.7 28.9 24.4 35.6 13.3 2.2 11.1 15.6 22.2
2023 44.8 55.2 27.6 20.7 6.9 51.7 37.9 10.3 34.5 10.3 0.0 17.2 27.6 10.3
2024 44.4 55.6 33.3 19.4 2.8 38.9 38.9 22.2 19.4 19.4 5.6 19.4 19.4 16.7
2025 25.0 75.0 25.0 25.0 25.0 25.0 50.0 25.0 0.0 25.0 0.0 25.0 25.0 25.0
Player 45.5 54.5 26.9 21.2 6.4 41.0 35.9 23.1 27.6 15.4 2.6 13.5 20.5 20.5
MLB 44.2 55.8 24.0 24.7 7.1 37.4 37.4 25.1 20.6 17.6 5.9 16.7 19.7 19.3
! Note: All figures in this table cover the period 2015-present.

Quality of Contact

Season Weak % Topped % Under % Flare/Burner % Solid % Barrel % Barrel/PA
2021 4.8 38.1 21.4 23.8 2.4 9.5 6.8
2022 2.2 35.6 26.7 26.7 4.4 4.4 3.0
2023 3.4 31.0 27.6 27.6 6.9 3.4 2.4
2024 5.6 27.8 25.0 25.0 13.9 2.8 2.1
2025 0.0 0.0 50.0 50.0 0.0 0.0 0.0
Player 3.8 32.7 25.6 26.3 6.4 5.1 3.7
MLB 4.0 32.4 24.9 24.4 5.9 7.2 4.9
! Note: All figures in this table cover the period 2015-present.

Pitch Movement


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
2025 4-Seam Fastball SEA L 3 89.6 19.6 -2.0 9.6ARM 2.2 14.6 -1.2 9.6ARM 1.5
2025 Changeup SEA L 5 81.8 38.3 1.8 11.5ARM -3.1 2.5 2.7 11.5ARM -2.7
2025 Curveball SEA L 3 71.6 69.4 3.7 13.8GLV 3.1 -15.1 5.5 13.8GLV 6.0
2025 Sinker SEA L 3 87.8 31.7 3.2 14.5ARM -1.1 4.0 3.5 14.5ARM -0.9
2025 Slider SEA L 12 78.5 44.8 0.7 17.5GLV 9.0 0.1 1.9 17.5GLV 13.4
2024 Slider SEA L 35 78.6 42.7 -2.6 14.7GLV 5.3 1.8 -0.3 14.7GLV 9.9
2024 Sinker SEA L 36 88.5 31.9 3.8 16.5ARM 1.1 3.2 5.0 16.5ARM 1.4
2024 Curveball SEA L 20 73.1 65.9 2.4 14.2GLV 3.3 -14.0 5.5 14.2GLV 7.1
2024 4-Seam Fastball SEA L 49 90.2 20.2 -2.7 11.2ARM 3.8 13.5 -2.2 11.2ARM 3.1
2024 Changeup SEA L 26 81.1 39.5 3.0 13.6ARM 0.1 2.1 3.8 13.6ARM -0.5
! 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 %
2025 Slider 5.8 1 12 46.2 2 .000 .000 .000 14.3 0.0 0.0 .059 .082 .064 0.0
2025 Changeup 3.7 0 5 19.2 1 .000 .000 .000 33.3 100.0 50.0 -- -- .000 --
2025 Curveball 7.9 0 3 11.5 1 .000 .000 .000 0.0 0.0 0.0 .759 .856 .702 0.0
2025 4-Seam Fastball -15.3 0 3 11.5 1 1.000 1.000 .900 0.0 0.0 0.0 .530 .564 .477 100.0
2025 Sinker -0.8 0 3 11.5 -- -- -- 0.0 -- -- -- -- -- --
2024 4-Seam Fastball 0.9 0 49 29.5 15 .154 .462 .310 12.0 13.3 18.2 .116 .282 .237 45.5
2024 Sinker -3.7 -1 36 21.7 8 .625 1.000 .694 5.3 0.0 0.0 .383 .476 .374 25.0
2024 Slider -1.0 0 35 21.1 13 .308 .385 .304 35.3 38.5 27.8 .265 .353 .268 37.5
2024 Changeup -3.1 -1 26 15.7 7 .167 .167 .357 9.1 0.0 0.0 .236 .247 .287 33.3
2024 Curveball -5.6 -1 20 12.0 4 .500 1.250 .725 16.7 25.0 33.3 .400 .980 .583 33.3
! 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
2025 Slider 12 78.5 57 18.7 3:30 3:15 15
2024 Changeup 26 81.1 80 14.3 9:45 9:00 45
2024 Curveball 20 73.1 83 22.8 4:30 4:45 -15
2024 4-Seam Fastball 49 90.2 88 17.2 10:15 10:30 -15
2024 Sinker 36 88.5 77 17.5 10:15 9:15 60
2024 Slider 35 78.6 53 15.8 3:30 3:00 30
! 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
2021 59 237 0 4 -4 -1 0
2022 66 236 2 1 -1 -2 0
2023 42 160 -1 -2 -1 -1 -6
2024 47 166 -1 -1 -1 0 -3
2025 5 26 1 0 0 0 1
Player 219 825 1 2 -7 1 -8
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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 57.1 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
2024 166 50.6 66.7 91.1 26.8 68.2 42.2 72.3 47.0 15.4 6.6 45.5
2025 26 61.5 75.0 100.0 20.0 0.0 34.6 60.0 53.8 14.3 11.5 100.0
Player 825 45.6 66.5 89.6 26.5 62.2 40.7 57.5 44.7 19.2 8.5 65.7
MLB 48.9 67.0 82.5 28.4 58.0 42.7 61.1 47.3 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
2021 5 19 53
2022 7 27 78
2023 7 30 54
2024 3 23 31
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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 %
2021 22.47 1 1.1 0 1 1 0 0.0
2022 22.33 1 1.1 0 1 1 0 0.0
2023 -- 0 0.8 -1 1 1 0 --
2024 22.06 2 1.7 0 0 2 0 0.0
Player 22.23 4 4.8 -1 3 5 0 0.0
Note: xHR tells how many of this pitcher's batted balls 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
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
2024 2 1 0 2 2 2 2 1 2 1 2 2 2 1 2 2 2 1 2 2 2 1 2 2 2 2 1 2 2 2 2
Player 4 3 3 4 5 6 6 3 5 4 5 6 4 4 5 6 5 4 6 5 5 5 5 6 3 5 5 6 4 6 5
Note: xHR tells how many of this pitcher's batted balls 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

2025 +/-   2024 +/-   2023 +/-   2022 +/-   2021
Results
BA .200 -.118 .318 -.101 .419 +.183 .236 +.016 .220
xBA .282 +.031 .251 -.053 .304 +.049 .255 -.020 .275
OBP .200 -.162 .362 -.162 .524 +.176 .348 +.026 .322
xOBP .282 -.017 .299 -.147 .446 +.080 .366 -.010 .376
SLG .200 -.368 .568 -.013 .581 +.199 .382 +.022 .360
xSLG .317 -.080 .397 -.037 .434 +.042 .392 -.051 .443
ISO .000 -.250 .250 +.089 .161 +.016 .145 +.005 .140
xISO .035 -.111 .146 +.016 .130 -.007 .137 -.031 .168
BABIP .250 -.103 .353 -.095 .448 +.175 .273 +.029 .244
wOBA .176 -.219 .395 -.072 .467 +.143 .324 +.022 .302
xwOBA .261 -.044 .305 -.089 .394 +.057 .337 -.028 .365
wOBACON .221 -.238 .459 +.001 .458 +.135 .323 +.031 .292
xwOBACON .327 -.014 .341 -.012 .353 +.012 .341 -.039 .380
BACON .250 -.139 .389 -.059 .448 +.159 .289 +.027 .262
xBACON .352 +.045 .307 -.028 .335 +.021 .314 -.024 .338
Statcast Hit Metrics
Hard Hit % 25.0 -11.1 36.1 +1.6 34.5 -12.2 46.7 +13.4 33.3
Avg Exit Velocity 84.5 -4.7 89.2 +1.3 87.9 -3.4 91.3 +4.8 86.5
Launch Angle Sweet-Spot % 25.0 -5.6 30.6 -0.4 31.0 -6.8 37.8 -2.7 40.5
Barrel % 0.0 -2.8 2.8 -0.6 3.4 -1.0 4.4 -5.1 9.5
Avg Launch Angle 29.9 +16.0 13.9 +1.9 12.0 +2.0 10.0 -0.3 10.3
Statcast Bat Tracking
Bat Speed 71.2 +0.1 71.1 -0.5 71.6 -- -- -- --
Attack Angle 13° +6° -6° 14° -- -- -- --
Ideal Attack Angle % 33.3 -19.9 53.2 -0.1 53.3 -- -- -- --
Attack Direction -2° -6° +11° -7° -- -- -- --
Swing Path - Tilt 34° +2° 32° -2° 35° -- -- -- --
Swing Length 7.5 +0.3 7.2 -0.3 7.5 -- -- -- --
Statcast Pitch Metrics
Fastball Velocity 88.7 -0.8 89.5 -0.6 90.1 0.0 90.1 +1.3 88.8
Breaking Velocity 77.1 +0.5 76.6 -3.5 80.1 +1.0 79.1 +0.4 78.7
Offspeed Velocity 81.8 +0.7 81.1 -0.8 81.9 +1.2 80.7 -0.9 81.6
Batted Ball Results
Barrels 0 -1 1 0 1 -1 2 -2 4
Popup % 25.0 +22.2 2.8 -4.1 6.9 +0.2 6.7 -0.4 7.1
Flyball % 25.0 -8.3 33.3 +5.7 27.6 +5.4 22.2 -4.0 26.2
Line Drive % 25.0 +5.6 19.4 -1.3 20.7 +0.7 20.0 -3.8 23.8
Groundball % 25.0 -19.4 44.4 -0.4 44.8 -6.3 51.1 +8.2 42.9
Pull % 25.0 -13.9 38.9 -12.8 51.7 +5.0 46.7 +15.7 31.0
Straight Away % 50.0 +11.1 38.9 +1.0 37.9 +9.0 28.9 -9.2 38.1
Opposite Field % 25.0 +2.8 22.2 +11.9 10.3 -14.1 24.4 -6.6 31.0
Weak Contact % 0.0 -5.6 5.6 +2.2 3.4 +1.2 2.2 -2.6 4.8
Pull Airball % 25.0 +5.6 19.4 +2.2 17.2 +6.1 11.1 +4.0 7.1
Topped Contact % 0.0 -27.8 27.8 -3.2 31.0 -4.6 35.6 -2.5 38.1
Under Contact % 50.0 +25.0 25.0 -2.6 27.6 +0.9 26.7 +5.3 21.4
Flare/Burner Contact % 50.0 +25.0 25.0 -2.6 27.6 +0.9 26.7 +2.9 23.8
Solid Contact % 0.0 -13.9 13.9 +7.0 6.9 +2.5 4.4 +2.0 2.4
HR/FB % 0.0 -16.7 16.7 +16.7 0.0 -10.0 10.0 +0.9 9.1
Popups 1 0 1 -1 2 -1 3 0 3
Flyballs 1 -11 12 +4 8 -2 10 -1 11
Line Drives 1 -6 7 +1 6 -3 9 -1 10
Groundballs 1 -15 16 +3 13 -10 23 +5 18
Plate Discipline
In Zone % 61.5 +10.9 50.6 +8.7 41.9 +1.2 40.7 -7.0 47.7
Out of Zone % 38.5 -10.9 49.4 -8.7 58.1 -1.2 59.3 +7.0 52.3
Edge % 34.6 -7.6 42.2 +0.9 41.3 +3.6 37.7 -5.3 43.0
Zone Swing % 75.0 +8.3 66.7 +2.5 64.2 -4.6 68.8 +4.2 64.6
Out of Zone Swing % 20.0 -6.8 26.8 +2.1 24.7 -0.3 25.0 -4.8 29.8
In Zone Contact % 100.0 +8.9 91.1 +2.7 88.4 -1.0 89.4 +1.7 87.7
Out of Zone Contact % 0.0 -68.2 68.2 +3.0 65.2 +8.1 57.1 -7.8 64.9
Whiff % 14.3 -1.1 15.4 -4.3 19.7 -2.1 21.8 +1.8 20.0
First Strike % 60.0 -12.3 72.3 +8.0 64.3 +17.3 47.0 -5.5 52.5
First Pitch Swing % 20.0 -7.7 27.7 -0.9 28.6 -3.2 31.8 +8.1 23.7
Swing % 53.8 +6.8 47.0 +5.7 41.3 -1.5 42.8 -3.6 46.4
Meatball Swing % 100.0 +54.5 45.5 -14.5 60.0 -6.7 66.7 -5.3 72.0
Meatball % 11.5 +4.9 6.6 +0.3 6.3 -2.6 8.9 -1.6 10.5
Zone Swing & Miss % 0.0 -8.9 8.9 -2.7 11.6 +1.0 10.6 -1.7 12.3
Out of Zone Swing & Miss % 100.0 +68.2 31.8 -3.0 34.8 -8.1 42.9 +7.8 35.1
In Zone 16 -68 84 +17 67 -29 96 -17 113
Out of Zone 10 -72 82 -11 93 -47 140 +16 124
Edge 9 -61 70 +4 66 -23 89 -13 102
In Zone Swings 12 -44 56 +13 43 -23 66 -7 73
Out of Zone Swings 2 -20 22 -1 23 -12 35 -2 37
In Zone Swing & Misses 0 -5 5 0 5 -2 7 -2 9
Out of Zone Swing & Misses 2 -5 7 -1 8 -7 15 +2 13
Basic
Pitches 26 -140 166 +6 160 -76 236 -1 237
PA 5 -42 47 +5 42 -24 66 +7 59
AB 5 -39 44 +13 31 -24 55 +5 50
Hits 1 -13 14 +1 13 0 13 +2 11
Singles 1 -7 8 0 8 0 8 +2 6
Doubles 0 -3 3 -2 5 +2 3 -1 4
Triples 0 -1 1 +1 0 -1 1 +1 0
Home Runs 0 -2 2 +2 0 -1 1 0 1
Walks 0 -3 3 -4 7 -3 10 +3 7
Strikeouts 1 -7 8 +4 4 -7 11 +2 9
K% 20.0 +3.0 17.0 +7.5 9.5 -7.2 16.7 +1.4 15.3
BB% 0.0 -6.4 6.4 -10.3 16.7 +1.5 15.2 +3.3 11.9
HBP 0 0 0 -2 2 +2 0 -1 1
Batted Balls 4 -32 36 +7 29 -16 45 +3 42
Number of Fastballs 6 -79 85 +14 71 -47 118 -13 131
Number of Offspeed 5 -21 26 -3 29 -9 38 +5 33
Number of Breaking 15 -40 55 -5 60 -20 80 +7 73
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2021 Shifts 59 .302 37 5 13.5 22 13 59.1
2022 Shifts 66 .324 54 13 24.1 12 6 50.0
2023 Shades 42 .467 28 0 0.0 14 5 35.7
2024 Shades 47 .395 28 0 0.0 19 7 36.8
2025 Shades 5 .176 3 0 0.0 2 2 100.0
! 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%
2024 37 13.1 75.7% 0.0% 43 17.8 2.3% 0.0%
2025 6 14.4 66.7% 0.0% 5 18.8 20.0% 0.0%

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Pitch Distribution