Jen-Ho Tseng
P | Bats/Throws: L/R | 6' 1" 210LBS | Age: 29
W L ERA G GS SV IP SO WHIP
2017 1 0 7.50 2 1 0 6 8 1.17
2018 0 0 13.50 1 1 0 2 3 2.00
2 Seasons 1 0 9.00 3 2 0 8 11 1.38
G W-L ERA IP SO WHIP
2017 2 1-0 7.50 6 8 1.17
2018 1 0-0 13.50 2 3 2.00
2 Seasons 3 1-0 9.00 8 11 1.38
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
2017 22 106 15 3 20.0 11.5 95.4 107.6 17.7 53.3 .277 .583 .348 .384 .525 46.7 30.8 7.7 7.50 6.74
2018 23 39 7 2 28.6 20.0 98.2 106.1 1.8 42.9 .379 .907 .540 .540 .771 57.1 30.0 0.0 13.50 17.17
Player 145 22 5 22.7 13.9 96.3 107.6 12.6 50.0 .309 .685 .402 .427 .603 50.0 30.6 5.6
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

Tseng relies on 3 pitches.
Four Seamer
(53.8%) ,
Changeup
(38.5%) ,
Curveball
(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
2017 33.3 40.0 26.7 0.0 40.0 26.7 33.3 0.0 13.3 26.7 40.0 0.0 20.0 11.5
2018 57.1 14.3 28.6 0.0 57.1 14.3 28.6 0.0 42.9 0.0 28.6 0.0 28.6 20.0
Player 40.9 31.8 27.3 0.0 45.5 22.7 31.8 0.0 22.7 18.2 36.4 0.0 22.7 13.9
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
2018 4-Seam Fastball CHC R 21 90.7 20.3 -2.9 -17 12.8 5.6 78
2018 Changeup CHC R 15 84.7 32.8 1.2 4 13.7 0.2 1
2018 Curveball CHC R 3 75.8 65.0 4.9 8 10.4 0.5 5
2017 Slider CHC R 14 85.7 29.4 -4.5 -13 0.8 -4.0 -123
2017 Curveball CHC R 20 77.3 56.2 1.5 3 4.0 -5.4 -58
2017 Changeup CHC R 17 84.8 33.3 3.1 10 14.8 1.0 7
2017 4-Seam Fastball CHC R 55 92.0 19.2 -3.2 -20 15.0 6.5 77
! 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 %
2018 4-Seam Fastball -12.2 -3 21 53.8 7 .571 1.286 .771 20.0 14.3 20.0 .509 1.263 .734 66.7
2018 Changeup 3.9 1 15 38.5 3 .000 .000 .000 50.0 66.7 28.6 .074 .078 .087 0.0
2018 Curveball -1.6 0 3 7.7 -- -- -- 0.0 -- 0.0 -- -- -- --
2017 4-Seam Fastball 1.5 1 55 51.9 16 .214 .429 .281 10.3 18.8 18.8 .346 .689 .422 50.0
2017 Curveball -5.2 -1 20 18.9 3 .333 .667 .717 20.0 33.3 14.3 .176 .247 .175 0.0
2017 Changeup 0.1 0 17 16.0 4 .250 1.000 .500 66.7 75.0 42.9 .180 .613 .322 100.0
2017 Slider -5.9 -1 14 13.2 3 .000 .000 .467 40.0 33.3 14.3 -- -- .467 --
! 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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Swing/Take

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2017 26 106 -1 1 1 -2 -1
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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 %
2017 106 50.0 66.0 82.9 24.5 46.2 35.8 69.2 45.3 25.0 8.5 88.9
2018 39 56.4 77.3 88.2 41.2 28.6 61.5 70.0 61.5 29.2 2.6 0.0
Player 145 51.7 69.3 84.6 28.6 40.0 42.8 69.4 49.7 26.4 6.9 80.0
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
2017 35 13 47
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Expected Home Runs

Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %
2017 23.9 2 1.2 1 1 1 0 0.0
2018 23.2 1 1.6 -1 0 1 1 100.0
Player 23.7 3 2.8 0 1 2 1 33.3

Expected Home Runs by Park

Year HR
2017 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 2 1 2 1 1 1 1 2 1 0
2018 1 2 1 1 1 1 2 2 1 1 1 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 1 1 2 2 1
Player 3 4 2 2 2 2 3 3 2 2 2 2 3 3 3 3 3 3 4 3 4 3 3 4 3 3 2 2 4 3 1
! 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 2017 2018 +/-  
Fastball Velocity 92.0 90.7 -1.3
Offspeed Velocity 84.8 84.7 -0.1
Breaking Velocity 80.7 75.8 -4.9
Exit Velocity 95.4 98.2 2.8
Launch Angle 17.7 1.8 -15.9
Barrel % 20.0 28.6 8.6
Hard Hit % 46.7 57.1 10.4
Sweet Spot % 53.3 42.9 -10.4
xBA .277 .379 0.102
BA .227 .400 0.173
xwOBA .384 .540 0.156
wOBA .348 .540 0.192
xSLG .583 .907 0.324
SLG .545 .900 0.355
K% 30.8 30.0 -0.8
BB% 7.7 0.0 -7.7
Swing % 45.3 61.5 16.2
Whiff% 25.0 29.2 4.2
In Zone % 50.0 56.4 6.4
Out of Zone % 50.0 43.6 -6.4
Out of Zone Swing % 24.5 41.2 16.7
First Pitch Swing % 19.2 50.0 30.8
First Pitch Strike % 69.2 70.0 0.8
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2017 Shifts 26 .348 14 0 0.0 12 1 8.3
2018 Shifts 10 .540 8 0 0.0 2 0 0.0
! 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 %
2017 28 15.1 46.4% 0.0% 18 16.4 22.2% 5.6%
2018 8 14.7 50.0% 0.0% 5 18.8 0.0% 0.0%
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Pitch Distribution