Robby Ahlstrom

LHP

Team: Round Rock ExpressThrows: LHeight: 6'3"Weight: 195 lbDOB: Jun 18, 1999Born: Placerville, CA, USAActive

Compare

Games

6.08

ERA

11.6%

K-BB%

94.4 mph

FB Velo

25.6%

CSW%

Stuff+

105

+5 vs lg 100

vL 109▲vR 100

DLoc+

101

+1 vs lg 100

vL 101vR 102

Stockyard PLoc+

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MLB season projection

Projects next-year DLoc+

Pitching+

100

0 vs lg 100

vL 106▲vR 102

Deception

Synergy

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Pitch Arsenal

Click a pitch to collapse or expand details

4-Seam Fastball

32.7%|Pitching+96

Velocity

94.4mph

Spin

2182rpm

CSW%

24.5%

iVB / iHB

17.4" / 5.6"

Stuff+

DLoc+

Pitching+

vs L

103

93▼

95▼

vs R

94▼

Grade drivers

League-average 4-Seam Fastball · 100 → 101.0

Horizontal geometry

+3.8

Vertical approach angle

−2.9

Break across arm slot

−1.8

Release height

+0.9

Carry along arm slot

+0.6

Velocity

+0.6

Everything else

−0.2

Slider

25.8%|Pitching+108▲

Velocity

85.9mph

Spin

2341rpm

CSW%

33.5%

iVB / iHB

4.5" / -2.3"

Stuff+

DLoc+

Pitching+

vs L

110▲

108▲

109▲

vs R

100

106▲

Grade drivers

League-average Slider · 100 → 103.9

Horizontal geometry

+3.3

Velo gap vs fastball

+1.0

Vertical approach angle

+0.9

Seam-shifted wake: amount

−0.8

Arm angle

−0.6

Velocity

+0.5

Everything else

−0.4

Sinker

22.1%|Pitching+105▲

Velocity

94.4mph

Spin

2093rpm

CSW%

23.1%

iVB / iHB

12.7" / 14.3"

Stuff+

DLoc+

Pitching+

vs L

114▲

110▲

vs R

94▼

101

Grade drivers

League-average Sinker · 100 → 107.7

Horizontal geometry

+6.7

Carry along arm slot

+2.6

Vertical approach angle

−1.4

Velocity

+1.2

Seam-shifted wake: amount

−0.7

Seam-shifted wake: direction

−0.5

Everything else

−0.2

Changeup

15.7%|Pitching+110▲

Velocity

86.7mph

Spin

1324rpm

CSW%

24.5%

iVB / iHB

7.1" / 10.5"

Stuff+

DLoc+

Pitching+

vs L

113▲

102

113▲

vs R

103

105▲

106▲

Grade drivers

League-average Changeup · 100 → 109.2

Horizontal geometry

+5.4

Vertical approach angle

+1.5

Vertical break gap vs fastball

+1.3

Carry along arm slot

−1.1

Seam-shifted wake: amount

+0.8

Extension

−0.6

Everything else

+1.9

Curveball

3.7%|Pitching+98

Velocity

81mph

Spin

2562rpm

CSW%

12.5%

iVB / iHB

-4" / -5.2"

Stuff+

DLoc+

Pitching+

vs L

vs R

102

Grade drivers

League-average Curveball · 100 → 99.9

Horizontal geometry

+3.2

Arm angle

−1.5

Vertical approach angle

−1.0

Release height

+0.9

Seam-shifted wake: amount

−0.9

Spin rate

+0.8

Everything else

−1.6

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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Robby Ahlstrom

Pitch Arsenal

4-Seam Fastball

Slider

Sinker

Changeup

Curveball

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