Colin Selby
P | Bats/Throws: R/R | 6' 2" 220LBS | Age: 27
Draft: 2018 | Rd: 16, #474, Pittsburgh Pirates | Randolph-Macon Col
W L ERA G GS SV IP SO WHIP
2023 2 2 9.00 21 5 0 24 30 1.83
2024 0 0 2.57 5 0 0 7 5 1.00
2025 0 0 9.00 2 0 0 2 4 1.50
3 Seasons 2 2 7.64 28 5 0 33 39 1.64
G W-L ERA IP SO WHIP
2023 21 2-2 9.00 24 30 1.83
2024 5 0-0 2.57 7 5 1.00
2025 2 0-0 9.00 2 4 1.50
3 Seasons 28 2-2 7.64 33 39 1.64
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
2023 25 437 69 7 10.1 6.1 88.1 110.1 5.0 27.5 .270 .453 .362 .356 .444 42.0 26.3 13.2 9.00 5.52
2024 26 112 18 0 0.0 0.0 90.1 106.4 4.1 11.1 .192 .226 .219 .276 .236 44.4 17.9 14.3 2.57 3.14
2025 27 32 5 2 40.0 22.2 87.5 106.1 13.3 60.0 .295 .728 .473 .426 .766 40.0 44.4 0.0 9.00 7.64
Player 581 92 9 9.8 6.0 88.5 110.1 5.3 26.1 .258 .432 .342 .346 .421 42.4 25.8 12.6
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

Selby relies on 4 pitches.
Knuckle Curve
(34.4%) ,
Sinker
(25.0%) ,
Four Seamer
(25.0%) ,
Slider
(15.6%) ,


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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 %
2023 49.3 50.7 20.3 24.6 5.8 40.6 36.2 23.2 26.1 17.4 5.8 14.5 18.8 17.4
2024 61.1 38.9 5.6 16.7 16.7 61.1 22.2 16.7 44.4 16.7 0.0 16.7 5.6 16.7
2025 20.0 80.0 60.0 20.0 0.0 40.0 0.0 60.0 20.0 0.0 0.0 20.0 0.0 60.0
Player 50.0 50.0 19.6 22.8 7.6 44.6 31.5 23.9 29.3 16.3 4.3 15.2 15.2 19.6
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
2023 5.8 34.8 14.5 27.5 7.2 10.1 6.1
2024 0.0 50.0 22.2 22.2 5.6 0.0 0.0
2025 0.0 20.0 20.0 20.0 0.0 40.0 22.2
Player 4.3 37.0 16.3 26.1 6.5 9.8 6.0
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 Slider BAL R 5 88.1 32.5 -0.7 3.5GLV -0.5 2.8 -1.1 3.5GLV -1.4
2025 Sinker BAL R 8 95.7 18.8 -3.5 14.1ARM -1.5 11.2 -3.9 14.1ARM -1.3
2025 4-Seam Fastball BAL R 8 96.2 13.3 0.7 7.8ARM -0.2 16.4 0.4 7.8ARM 0.1
2025 Curveball BAL R 11 83.2 53.4 4.0 14.3GLV 6.4 -13.4 3.6 14.3GLV 4.6
2024 4-Seam Fastball BAL R 31 94.7 14.1 0.7 6.8ARM -0.7 16.4 0.7 6.8ARM -0.8
2024 Sinker BAL R 35 95.5 17.9 -3.6 15.8ARM 0.7 12.1 -4.9 15.8ARM 0.9
2024 Slider BAL R 22 88.2 31.4 -1.6 2.9GLV -1.0 3.7 -2.1 2.9GLV -2.0
2024 Curveball BAL R 24 82.3 55.2 5.5 13.6GLV 5.5 -14.2 4.2 13.6GLV 4.2
! 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 Curveball 4.3 0 11 34.4 2 .000 .000 .000 0.0 50.0 20.0 .048 .049 .043 0.0
2025 4-Seam Fastball -33.5 -3 8 25.0 4 .500 1.250 .725 20.0 25.0 100.0 .429 .959 .582 33.3
2025 Sinker -3.6 0 8 25.0 2 .500 1.000 .625 40.0 50.0 25.0 .421 1.310 .710 100.0
2025 Slider 3.2 0 5 15.6 1 .000 .000 .000 75.0 100.0 33.3 -- -- .000 --
2024 Sinker 6.9 2 35 31.3 10 .000 .000 .140 37.5 30.0 60.0 .074 .075 .196 20.0
2024 4-Seam Fastball 0.4 0 31 27.7 10 .250 .250 .320 8.3 0.0 0.0 .297 .372 .370 50.0
2024 Curveball -3.8 -1 24 21.4 4 .333 .333 .400 25.0 50.0 22.2 .242 .285 .347 100.0
2024 Slider 5.2 1 22 19.6 4 .000 .000 .000 0.0 0.0 0.0 .177 .193 .177 50.0
! 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 Curveball 11 83.2 88 22.1 7:00 7:30 -30
2024 Curveball 24 82.3 86 22.3 7:00 7:15 -15
2024 4-Seam Fastball 31 94.7 93 17.4 12:45 12:45 0
2024 Sinker 35 95.5 90 20.0 1:00 1:45 -45
2024 Slider 22 88.2 29 4.7 10:15 10:15 0
! 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
2023 113 437 -1 3 -3 -3 -4
2024 28 112 4 0 -1 -1 3
2025 9 32 -3 0 0 0 -2
Player 150 581 1 3 -3 1 -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 %
2023 437 46.7 61.8 82.5 25.3 45.8 39.1 53.1 42.3 29.2 7.1 83.9
2024 112 43.8 53.1 96.2 28.6 55.6 43.8 50.0 39.3 20.5 4.5 80.0
2025 32 56.3 66.7 83.3 42.9 33.3 43.8 66.7 56.3 33.3 9.4 33.3
Player 581 46.6 60.5 84.8 26.8 47.0 40.3 53.3 42.5 27.9 6.7 79.5
MLB 48.7 67.0 82.0 28.4 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
2023 89 49 68 64
2024 67 33 69
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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 %
2023 23.5 4 4.1 0 2 2 2 50.0
2025 25.2 1 1.1 0 1 0 1 100.0
Player 23.8 5 5.2 0 3 2 3 60.0
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
2023 4 3 3 5 5 4 4 4 4 4 4 5 4 4 4 5 4 4 4 4 4 4 5 4 4 4 4 4 4 4 4
2025 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1
Player 5 5 4 6 6 5 5 5 5 5 5 6 5 5 5 6 5 5 5 5 5 6 6 6 5 5 5 5 5 5 5
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 2023 +/-   2024 +/-   2025
Fastball Velocity 96.6 -1.5 95.1 0.8 95.9
Offspeed Velocity 0.0 0.0 0.0 0.0 0.0
Breaking Velocity 86.6 -1.5 85.1 -0.4 84.7
Exit Velocity 88.1 2.0 90.1 -2.6 87.5
Launch Angle 5.0 -0.9 4.1 9.2 13.3
Barrel % 10.1 -10.1 0.0 40.0 40.0
Hard Hit % 42.0 2.4 44.4 -4.4 40.0
LA Sweet-Spot % 27.5 -16.4 11.1 48.9 60.0
xBA .270 -0.078 .192 0.103 .295
BA .296 -0.166 .130 0.203 .333
xwOBA .356 -0.080 .276 0.150 .426
wOBA .362 -0.143 .219 0.254 .473
xSLG .453 -0.227 .226 0.502 .728
SLG .439 -0.309 .130 0.648 .778
K% 26.3 -8.4 17.9 26.5 44.4
BB% 13.2 1.1 14.3 -14.3 0.0
Swing % 42.3 -3.0 39.3 17.0 56.3
Whiff% 29.2 -8.7 20.5 12.8 33.3
In Zone % 46.7 -2.9 43.8 12.5 56.3
Out of Zone % 53.3 3.0 56.3 -12.5 43.8
Out of Zone Swing % 25.3 3.3 28.6 14.3 42.9
First Pitch Swing % 22.1 2.9 25.0 30.6 55.6
First Pitch Strike % 53.1 -3.1 50.0 16.7 66.7
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2023 Shades 108 .364 66 8 12.1 42 24 57.1
2024 Shades 28 .219 16 0 0.0 12 9 75.0
2025 Shades 9 .473 2 0 0.0 7 3 42.9
! 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 %
2023 123 15.3 44.7% 0.0% 78 19.4 1.3% 1.3%
2024 34 16.3 29.4% 0.0% 20 19.1 10.0% 0.0%
2025 12 16.2 8.3% 8.3% 1 19.9 0.0% 0.0%

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Pitch Distribution



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