Kirby Yates
P | Bats/Throws: L/R | 5' 10" 205LBS | Age: 38
Draft: 2005 | Rd: 26, #798, Boston Red Sox | Kauai HS, HI
W L ERA G GS SV IP SO WHIP
2023 7 2 3.28 61 0 5 60.1 80 1.19
2024 7 2 1.17 61 0 33 61.2 85 0.83
2025 1 1 3.48 12 0 0 10.1 20 1.06
11 Seasons 27 22 3.18 434 0 95 421.2 591 1.11
G W-L ERA IP SO WHIP
2023 61 7-2 3.28 60.1 80 1.19
2024 61 7-2 1.17 61.2 85 0.83
2025 12 1-1 3.48 10.1 20 1.06
11 Seasons 434 27-22 3.18 421.2 591 1.11
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
2015 28 408 63 10 15.9 10.9 89.4 107.3 18.7 34.9 .266 .577 .421 .387 .477 42.9 22.8 7.6 7.97 6.65
2016 29 800 111 4 3.6 2.2 88.2 109.8 13.8 30.6 .218 .315 .327 .287 .336 28.8 27.2 10.3 5.23 3.43
2017 30 965 122 14 11.5 6.1 87.2 109.6 21.8 37.7 .183 .380 .295 .271 .402 36.1 38.1 8.2 3.97 3.10
2018 31 1047 139 10 7.2 4.0 87.1 109.0 12.6 30.9 .181 .322 .236 .255 .356 39.7 36.0 6.8 2.14 2.70
2019 32 1021 122 5 4.1 2.1 86.9 109.5 11.0 30.3 .172 .261 .228 .226 .342 36.1 41.6 5.3 1.19 2.22
2020 33 101 13 1 7.7 4.0 86.2 108.0 14.9 38.5 .259 .430 .403 .348 .455 30.8 32.0 16.0 12.46 5.27
2022 35 137 22 4 18.2 12.1 90.1 109.8 22.9 22.7 .200 .473 .371 .336 .348 45.5 18.2 15.2 5.14 4.78
2023 36 1058 132 14 10.6 5.5 90.6 113.0 16.8 34.8 .205 .388 .282 .326 .408 40.2 31.5 14.6 3.28 4.51
2024 37 1027 121 5 4.1 2.1 87.5 106.5 15.2 16.5 .145 .214 .186 .212 .262 33.1 35.9 11.8 1.17 1.86
2025 38 174 18 1 5.6 2.4 91.6 105.6 11.6 22.2 .154 .256 .302 .225 .369 44.4 47.6 7.1 3.48 1.87
Player 6738 863 68 7.9 4.3 88.1 113.0 15.6 30.4 .188 .332 .272 .272 .363 36.7 34.5 9.6
MLB 7.0 4.8 88.5 122.4 12.3 33.2 .245 .405 .316 .315 .368 36.6 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Yates relies on 2 pitches.
Split Finger
(52.3%) ,
Four Seamer
(47.7%) ,


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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 %
2015 30.2 69.8 36.5 22.2 11.1 46.0 28.6 25.4 14.3 11.1 4.8 31.7 17.5 20.6
2016 44.1 55.9 20.7 24.3 10.8 36.0 41.4 22.5 18.9 19.8 5.4 17.1 21.6 17.1
2017 29.5 70.5 39.3 21.3 9.8 32.8 36.9 30.3 10.7 14.8 4.1 22.1 22.1 26.2
2018 43.2 56.8 23.0 23.0 10.8 35.3 45.3 19.4 20.1 20.1 2.9 15.1 25.2 16.5
2019 48.4 51.6 27.9 18.0 5.7 40.2 33.6 26.2 27.0 18.0 3.3 13.1 15.6 23.0
2020 38.5 61.5 23.1 30.8 7.7 23.1 53.8 23.1 7.7 30.8 0.0 15.4 23.1 23.1
2022 36.4 63.6 45.5 9.1 9.1 31.8 31.8 36.4 13.6 18.2 4.5 18.2 13.6 31.8
2023 37.9 62.1 31.1 22.0 9.1 37.9 36.4 25.8 20.5 14.4 3.0 17.4 22.0 22.7
2024 45.5 54.5 34.7 13.2 6.6 37.2 41.3 21.5 19.0 25.6 0.8 18.2 15.7 20.7
2025 50.0 50.0 16.7 27.8 5.6 44.4 33.3 22.2 22.2 22.2 5.6 22.2 11.1 16.7
Player 40.6 59.4 30.0 20.5 8.9 37.1 38.4 24.6 18.8 18.4 3.4 18.3 19.9 21.2
MLB 44.4 55.6 23.8 24.7 7.1 37.2 37.4 25.2 20.6 17.8 5.9 16.6 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
2015 3.2 23.8 27.0 22.2 7.9 15.9 10.9
2016 2.7 34.2 25.2 28.8 2.7 3.6 2.2
2017 6.6 18.0 38.5 19.7 4.9 11.5 6.1
2018 3.6 32.4 28.8 20.1 5.8 7.2 4.0
2019 3.3 32.8 23.8 28.7 5.7 4.1 2.1
2020 7.7 23.1 23.1 38.5 0.0 7.7 4.0
2022 0.0 31.8 36.4 4.5 9.1 18.2 12.1
2023 5.3 26.5 30.3 20.5 6.8 10.6 5.5
2024 5.8 36.4 33.1 18.2 2.5 4.1 2.1
2025 5.6 44.4 22.2 22.2 0.0 5.6 2.4
Player 4.4 29.8 29.7 22.2 5.0 7.9 4.3
MLB 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


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 LAD R 83 92.5 18.0 -0.7 14.1ARM 4.3 14.1 -2.0 14.1ARM 6.5
2025 Split-Finger LAD R 91 85.3 38.8 2.5 12.8ARM 0.0 -1.1 3.8 12.8ARM 1.2
2024 Slider TEX R 6 85.8 34.0 -2.1 1.2ARM -6.9 3.3 -1.7 1.2ARM -6.1
2024 4-Seam Fastball TEX R 623 93.2 16.9 -0.2 13.7ARM 4.5 14.8 -0.9 13.7ARM 6.1
2024 Split-Finger TEX R 397 86.3 36.7 1.4 13.4ARM 1.3 0.1 2.5 13.4ARM 2.7
! 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 Split-Finger 0.4 0 91 52.3 23 .182 .318 .233 56.5 56.5 39.4 .111 .139 .134 33.3
2025 4-Seam Fastball 1.0 1 83 47.7 19 .250 .500 .376 41.0 36.8 41.2 .214 .418 .334 55.6
2024 4-Seam Fastball 2.5 15 623 60.7 146 .113 .210 .212 35.2 41.1 27.3 .128 .213 .220 33.3
2024 Split-Finger 2.0 8 397 38.7 86 .114 .139 .151 31.1 29.1 16.9 .173 .214 .206 32.7
2024 Slider 0.1 0 6 0.6 -- -- -- 0.0 -- -- -- -- -- --
! 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
2025 4-Seam Fastball 69 92.4 98 19.9 1:45 1:30 15
2025 Split-Finger 84 85.2 98 14.0 2:45 3:30 -45
2024 4-Seam Fastball 621 93.2 98 20.1 1:45 1:30 15
2024 Split-Finger 390 86.3 97 14.5 2:45 3:15 -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
2014 153 677 2 8 -4 -2 4
2015 92 408 -2 -5 -3 -1 -11
2016 183 796 2 7 -5 -5 -2
2017 228 962 3 9 -3 -4 5
2018 241 1,009 5 18 0 -5 18
2019 242 1,021 11 19 -4 -5 21
2020 25 101 0 0 -1 -1 -2
2022 33 137 0 0 -1 0 -2
2023 252 1,056 9 10 -7 -7 6
2024 232 1,026 14 21 -8 -3 23
2025 42 174 2 0 0 -1 1
Player 1,723 7,367 48 85 -38 48 61
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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 %
2015 408 47.8 66.7 83.1 26.8 63.2 42.6 65.2 45.8 23.0 6.9 85.7
2016 800 48.9 66.2 74.9 26.2 65.4 41.3 63.6 45.8 27.3 7.6 77.0
2017 965 50.4 70.9 70.6 31.7 47.0 43.5 63.3 51.5 36.4 7.6 79.5
2018 1,047 45.9 73.9 69.0 37.0 56.9 44.1 60.4 53.2 34.5 7.1 90.3
2019 1,021 47.3 70.4 70.0 31.0 54.5 46.2 61.6 49.7 34.5 6.3 78.1
2020 101 47.5 68.8 66.7 24.5 38.5 41.6 68.0 45.5 41.3 3.0 100.0
2022 137 43.8 63.3 86.8 24.7 36.8 38.7 54.5 41.6 29.8 2.2 66.7
2023 1,058 44.1 67.7 78.8 27.9 50.3 41.4 57.5 45.5 30.8 5.5 77.6
2024 1,027 47.4 67.6 71.1 32.8 57.1 44.3 64.4 49.3 33.6 6.7 87.0
2025 174 46.0 67.5 64.8 33.0 25.8 37.4 59.5 48.9 49.4 5.2 100.0
Player 6,738 47.2 69.2 72.9 30.8 53.9 43.2 61.7 48.8 33.0 6.6 82.5
MLB 48.7 67.0 82.0 28.5 57.7 42.6 61.1 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
2015 53 75 47 30
2016 65 82 20
2017 87 97 66 17 95 51 1 49 23 98 53 99 87 63 77 21
2018 95 96 88 61 98 72 35 81 14 97 74 95 100 66 74 15
2019 100 99 100 99 98 97 93 88 53 99 90 92 70 53 63 10
2020 54 56 19
2022 41 75 25
2023 36 91 61 27 23 62 12 11 42 94 2 82 38 43 71 19
2024 100 100 100 99 96 98 95 81 88 98 8 94 88 35 76 15
2025 96 97 93 83 94 78 70 17 32 100 66 100 82 24 55 13
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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 %
2016 24.2 5 3.3 2 1 3 1 20.0
2017 23.7 12 9.1 3 8 4 5 41.7
2018 22.3 6 6.0 0 2 2 5 83.3
2019 22.5 2 4.4 -2 4 4 1 50.0
2020 -- 1 1.0 0 0 0 1 100.0
2022 23.8 2 3.0 -1 0 3 1 50.0
2023 23.9 9 9.8 -1 3 7 4 44.4
2024 23.7 3 3.6 -1 1 2 2 66.7
2025 30.0 1 0.9 0 0 1 0 0.0
Player 23.7 41 41.2 0 19 26 20 48.8
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
2016 5 5 4 3 4 3 4 3 3 2 3 3 3 4 3 3 1 2 5 3 4 4 4 4 4 3 2 4 5 4 1
2017 12 9 9 10 10 9 9 9 8 7 8 13 10 9 8 9 9 8 8 8 10 9 10 9 12 9 8 11 11 9 5
2018 6 6 6 7 6 5 6 6 5 5 5 7 7 6 6 7 6 5 6 6 7 6 7 7 5 5 6 7 7 6 5
2019 2 6 3 5 4 4 4 5 4 3 3 4 7 4 4 5 4 4 4 4 4 4 5 6 5 4 3 6 7 3 3
2020 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
2022 2 2 2 2 4 4 4 2 2 2 4 3 3 3 4 3 4 2 3 4 3 3 4 3 2 2 3 4 3 4 3
2023 9 8 7 11 10 9 11 9 9 9 9 10 10 8 11 12 11 10 9 11 8 10 13 11 10 8 10 11 11 11 8
2024 3 2 3 3 4 4 4 3 4 3 4 4 4 3 3 3 3 3 4 4 4 4 5 4 3 3 4 4 4 4 4
2025 1 1 1 1 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1
Player 41 40 36 43 43 40 44 39 37 32 38 46 46 39 41 44 40 36 41 42 42 42 50 46 42 36 38 49 50 43 31
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 2015 +/-   2016 +/-   2017 +/-   2018 +/-   2019 +/-   2020 +/-   2021 +/-   2022 +/-   2023 +/-   2024 +/-   2025
Fastball Velocity 93.0 0.8 93.8 0.0 93.8 0.1 93.9 -0.4 93.5 0.1 -- -- -- -- 93.4 0.2 93.6 -0.4 93.2 -0.7 92.5
Offspeed Velocity 84.1 0.5 84.6 2.2 86.8 0.5 87.3 -1.0 86.3 -0.5 -- -- -- -- 86.6 -0.5 86.1 0.2 86.3 -1.0 85.3
Breaking Velocity 81.8 2.3 84.1 1.9 86.0 0.8 86.8 -1.6 85.2 0.0 -- -- -- -- 84.2 -6.8 77.4 8.4 85.8 0.0 0.0
Exit Velocity 89.4 -1.2 88.2 -1.0 87.2 -0.1 87.1 -0.2 86.9 -0.7 -- -- -- -- 90.1 0.5 90.6 -3.1 87.5 4.1 91.6
Launch Angle 18.7 -4.9 13.8 8.0 21.8 -9.2 12.6 -1.6 11.0 3.9 -- -- -- -- 22.9 -6.1 16.8 -1.6 15.2 -3.6 11.6
Barrel % 15.9 -12.3 3.6 7.9 11.5 -4.3 7.2 -3.1 4.1 3.6 -- -- -- -- 18.2 -7.6 10.6 -6.5 4.1 1.5 5.6
Hard Hit % 42.9 -14.1 28.8 7.3 36.1 3.6 39.7 -3.6 36.1 -5.3 -- -- -- -- 45.5 -5.3 40.2 -7.1 33.1 11.3 44.4
LA Sweet-Spot % 34.9 -4.3 30.6 7.1 37.7 -6.8 30.9 -0.6 30.3 8.2 -- -- -- -- 22.7 12.1 34.8 -18.3 16.5 5.7 22.2
xBA .266 -0.048 .218 -0.035 .183 -0.002 .181 -0.009 .172 0.087 -- -- -- -- .200 0.005 .205 -0.060 .145 0.009 .154
BA .274 -0.016 .258 -0.047 .211 -0.030 .181 0.005 .186 0.164 -- -- -- -- .222 -0.055 .167 -0.054 .113 0.098 .211
xwOBA .387 -0.100 .287 -0.016 .271 -0.016 .255 -0.029 .226 0.122 -- -- -- -- .336 -0.010 .326 -0.114 .212 0.013 .225
wOBA .421 -0.094 .327 -0.032 .295 -0.059 .236 -0.008 .228 0.175 -- -- -- -- .371 -0.089 .282 -0.096 .186 0.116 .302
xSLG .577 -0.262 .315 0.065 .380 -0.058 .322 -0.061 .261 0.169 -- -- -- -- .473 -0.085 .388 -0.174 .214 0.042 .256
SLG .667 -0.271 .396 0.020 .416 -0.137 .279 -0.017 .262 0.238 -- -- -- -- .556 -0.242 .314 -0.132 .182 0.213 .395
K% 22.8 4.4 27.2 10.9 38.1 -2.1 36.0 5.6 41.6 -9.6 -- -- -- -- 18.2 13.3 31.5 4.4 35.9 11.7 47.6
BB% 7.6 2.7 10.3 -2.1 8.2 -1.4 6.8 -1.5 5.3 10.7 -- -- -- -- 15.2 -0.6 14.6 -2.8 11.8 -4.7 7.1
Swing % 45.8 0.0 45.8 5.7 51.5 1.7 53.2 -3.5 49.7 -4.2 -- -- -- -- 41.6 3.9 45.5 3.8 49.3 -0.4 48.9
Whiff% 23.0 4.3 27.3 9.1 36.4 -1.9 34.5 0.0 34.5 6.8 -- -- -- -- 29.8 1.0 30.8 2.8 33.6 15.8 49.4
In Zone % 47.8 1.1 48.9 1.5 50.4 -4.5 45.9 1.4 47.3 0.2 -- -- -- -- 43.8 0.3 44.1 3.3 47.4 -1.4 46.0
Out of Zone % 52.2 -1.1 51.1 -1.5 49.6 4.5 54.1 -1.4 52.7 -0.2 -- -- -- -- 56.2 -0.3 55.9 -3.3 52.6 1.4 54.0
Out of Zone Swing % 26.8 -0.6 26.2 5.5 31.7 5.3 37.0 -6.0 31.0 -6.5 -- -- -- -- 24.7 3.2 27.9 4.9 32.8 0.2 33.0
First Pitch Swing % 26.1 1.6 27.7 4.2 31.9 2.1 34.0 -3.0 31.0 9.0 -- -- -- -- 21.2 6.0 27.2 8.0 35.2 -4.2 31.0
First Pitch Strike % 65.2 -1.6 63.6 -0.3 63.3 -2.9 60.4 1.2 61.6 6.4 -- -- -- -- 54.5 3.0 57.5 6.9 64.4 -4.9 59.5
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2016 Shifts 179 .314 119 7 5.9 60 19 31.7
2017 Shifts 228 .296 131 5 3.8 97 31 32.0
2018 Shifts 241 .233 132 0 0.0 109 24 22.0
2019 Shifts 242 .228 111 12 10.8 131 42 32.1
2020 Shifts 25 .403 10 0 0.0 15 7 46.7
2022 Shifts 33 .371 21 7 33.3 12 6 50.0
2023 Shades 252 .281 134 43 32.1 118 51 43.2
2024 Shades 232 .186 131 7 5.3 101 79 78.2
2025 Shades 42 .302 25 5 20.0 17 10 58.8
! 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 %
2014 167 20.0 3.0% 2.4% 152 23.8 0.0% 11.8%
2015 138 21.0 9.4% 8.0% 58 24.1 6.9% 25.9%
2016 212 22.6 3.8% 7.5% 154 27.0 1.9% 29.2%
2017 281 21.9 0.7% 5.3% 116 25.9 0.0% 18.1%
2018 266 21.3 0.4% 3.4% 129 27.3 0.0% 24.8%
2019 283 23.2 0.0% 9.5% 131 27.7 0.0% 28.2%
2020 28 22.6 0.0% 7.1% 15 29.8 0.0% 40.0%
2022 41 22.6 0.0% 7.3% 30 26.4 0.0% 20.0%
2023 282 16.7 11.0% 0.4% 173 19.8 0.0% 1.7%
2024 306 17.5 1.0% 1.0% 108 20.1 0.0% 0.9%
2025 49 17.0 2.0% 0.0% 20 19.5 0.0% 0.0%

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Pitch Distribution