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Slaten, Justin

RHP

Team: Boston Red SoxThrows: RHeight: 6'4"Weight: 222 lbDOB: Sep 15, 1997Born: Longview, TX, USAActive

Games

4.6

ERA

22.6%

K-BB%

96.6 mph

FB Velo

28.4%

CSW%

Stuff+

105

+5 vs lg 100

vL 107▲vR 104

DLoc+

108

+8 vs lg 100

vL 108▲vR 109▲

Stockyard PLoc+

—

MLB season projection

Projects next-year DLoc+

Pitching+

115

+15 vs lg 100

vL 113▲vR 116▲

Deception

—

2024+ only

Synergy

—

Min. 40 IP

Mix+

—

Min. 40 IP

Match+

—

Min. 40 IP

Pitch Arsenal

Click a pitch to collapse or expand details

Cutter

41.3%|P+107▲

Velocity

93.6mph

Spin

2521rpm

CSW%

32.4%

iVB / iHB

9.1" / -4.1"

Stuff+

DLoc+

Pitching+

vs L

119▲

107▲

108▲

vs R

106▲

105▲

Grade drivers

League-average Cutter · 100 → 110.1

Break across arm slot

+7.7

Velocity

+5.9

Vertical approach angle

−2.8

Carry along arm slot

−2.5

Release side

+1.7

Horizontal approach angle

−1.5

Everything else

+1.6

4-Seam Fastball

25.8%|P+110▲

Velocity

96.6mph

Spin

2463rpm

CSW%

18.3%

iVB / iHB

17" / 1.7"

Stuff+

DLoc+

Pitching+

vs L

106▲

100

108▲

vs R

101

112▲

Grade drivers

League-average 4-Seam Fastball · 100 → 103.4

Velocity

+3.4

Seam-shifted wake: amount

+0.8

Break across arm slot

−0.5

Carry along arm slot

−0.5

Extension

−0.4

Release side

+0.4

Everything else

+0.2

Sweeper

16.9%|P+106▲

Velocity

86mph

Spin

2631rpm

CSW%

27.9%

iVB / iHB

2" / -14"

Stuff+

DLoc+

Pitching+

vs L

100

104

vs R

121▲

104

107▲

Grade drivers

League-average Sweeper · 100 → 111.7

Velocity

+8.3

Break across arm slot

+3.8

Extension

+1.9

Arm angle

−1.4

Release height

−1.0

Seam-shifted wake: direction

+0.8

Everything else

−0.7

Sinker

12.4%|P+109▲

Velocity

97.3mph

Spin

2380rpm

CSW%

33.3%

iVB / iHB

15" / 11.4"

Stuff+

DLoc+

Pitching+

vs L

101

104

109▲

vs R

103

104

109▲

Grade drivers

League-average Sinker · 100 → 102.3

Carry along arm slot

+9.2

Seam-shifted wake: amount

−5.6

Velocity

+4.5

Horizontal approach angle

−2.0

Break across arm slot

−1.9

Release side

−1.2

Everything else

−0.7

Curveball

3.5%|P+119▲

Velocity

84.9mph

Spin

2703rpm

CSW%

38.9%

iVB / iHB

-11.9" / -6.2"

Stuff+

DLoc+

Pitching+

vs L

117▲

101

118▲

vs R

109▲

107▲

118▲

Grade drivers

League-average Curveball · 100 → 113.2

Velocity

+6.7

Carry along arm slot

+2.7

Spin rate

+1.5

Extension

+1.5

Vertical approach angle

+0.6

Release height

−0.6

Everything else

+0.8

xRV (Expected Run Value): Expected runs per 100 pitches using xwOBA on batted balls (BABIP-neutral). Negative = good (runs prevented), Positive = bad (runs allowed).

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