Isaac Mattson
P | Bats/Throws: R/R | 6' 2" 205LBS | Age: 28
Draft: 2017 | Rd: 19, #565, Los Angeles Angels | Pittsburgh
W L ERA G GS SV IP SO WHIP
2021 0 0 6.23 4 0 0 4.1 3 2.31
1 Season 0 0 6.23 4 0 0 4.1 3 2.31
G W-L ERA IP SO WHIP
2021 4 0-0 6.23 4.1 3 2.31
1 Season 4 0-0 6.23 4.1 3 2.31
MLB Percentile Rankings

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 25 91 15 2 13.3 8.7 90.0 107.1 25.2 26.7 .226 .532 .357 .397 .378 46.7 13.0 21.7 6.23 7.21
Player 91 15 2 13.3 8.7 90.0 107.1 25.2 26.7 .226 .532 .357 .397 .378 46.7 13.0 21.7
MLB 6.9 4.7 88.4 122.4 12.2 33.1 .245 .406 .316 .315 .369 36.3 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Mattson relies on 4 pitches.
Four Seamer
(65.9%) ,
Curveball
(13.2%) ,
Slider
(13.2%) ,
Changeup
(7.7%) ,


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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 33.3 53.3 6.7 6.7 20.0 33.3 46.7 0.0 20.0 40.0 13.3 13.3 13.3 8.7
Player 33.3 53.3 6.7 6.7 20.0 33.3 46.7 0.0 20.0 40.0 13.3 13.3 13.3 8.7
MLB 44.6 23.5 24.8 7.0 37.0 37.5 25.3 3.9 32.8 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
2021 4-Seam Fastball BAL R 60 92.8 11.8 2.9 20 8.5 2.1 32
2021 Changeup BAL R 7 86.2 25.1 -3.7 -13 14.8 1.4 10
2021 Slider BAL R 12 84.6 31.3 -5.3 -15 3.7 -1.3 -26
2021 Curveball BAL R 12 80.9 46.3 -6.3 -12 2.4 -4.8 -67
! 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 4-Seam Fastball -2.7 -2 60 65.9 13 .333 .444 .450 18.5 7.7 5.9 .253 .584 .455 50.0
2021 Slider 10.0 1 12 13.2 3 .000 .000 .000 60.0 33.3 50.0 .087 .095 .081 0.0
2021 Curveball -4.2 -1 12 13.2 4 .667 .667 .625 33.3 25.0 14.3 .180 .208 .312 0.0
2021 Changeup 6.8 0 7 7.7 3 .000 .000 .000 0.0 0.0 0.0 .328 1.138 .589 100.0
! 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
2021 Curveball 12 80.9 44 7.3 8:00 6:45 75
2021 4-Seam Fastball 60 92.8 99 21.6 12:45 12:45 0
2021 Slider 12 84.6 50 7.0 12:00 10:45 75
! Note: This table is showing data from the PITCHER perspective.
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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 91 42.9 71.8 82.1 25.0 61.5 34.1 52.2 45.1 24.4 5.5 60.0
Player 91 42.9 71.8 82.1 25.0 61.5 34.1 52.2 45.1 24.4 5.5 60.0
MLB 48.6 66.9 82.0 28.4 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.

Expected Home Runs

Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %
2021 -- 0 0.3 0 2 0 0 --
Player -- 0 0.3 0 2 0 0 --

Expected Home Runs by Park

Year HR
2021 0 0 0 1 0 0 0 1 0 0 0 2 0 0 0 1 0 0 0 0 0 1 1 0 0 0 1 0 0 0 0
Player 0 0 0 1 0 0 0 1 0 0 0 2 0 0 0 1 0 0 0 0 0 1 1 0 0 0 1 0 0 0 0
! 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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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2021 Shifts 23 .357 15 3 20.0 8 5 62.5
! 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 18 17.1 27.8% 0.0% 23 21.2 0.0% 4.3%
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