Jonathan Loáisiga

RHP

Team: Arizona DiamondbacksThrows: RHeight: 5'11"Weight: 195 lbDOB: Nov 2, 1994Born: Managua, NicaraguaActive

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Games

2.42

ERA

13.4%

K-BB%

97.9 mph

FB Velo

26.4%

CSW%

Stuff+

-1 vs MLB 100

vL 92▼vR 106▲

DLoc+

112

+12 vs MLB 100

vL 112▲vR 111▲

Stockyard PLoc+

116

+16 vs MLB 100

2026 Stockyard PLoc+ -> 2027

Pitching+

115

+15 vs MLB 100

vL 104vR 110▲

Deception

105

Synergy

Pitch Arsenal

Click a pitch to collapse or expand details

2-Seam Fastball

35.9%|Pitching+112▲

PLoc+

115▲-> 2027

Velocity

97.9mph

Spin

2301rpm

CSW%

31.6%

iVB / iHB

7.3" / 16.8"

Stuff+

DLoc+

Pitching+

vs L

117▲

105▲

vs R

118▲

120▲

116▲

Grade drivers

League-average 2-Seam Fastball · 100 → 108.6

Break across arm slot

+6.7

Velocity

+6.7

Carry along arm slot

+3.5

Horizontal geometry

−3.0

Release height

−1.0

Seam-shifted wake: direction

−0.6

Everything else

−3.7

Changeup

27%|Pitching+105▲

PLoc+

113▲-> 2027

Velocity

91mph

Spin

1772rpm

CSW%

25%

iVB / iHB

5.2" / 16.7"

Stuff+

DLoc+

Pitching+

vs L

86▼

103

102

vs R

88▼

102

106▲

Grade drivers

League-average Changeup · 100 → 85.3

Vertical approach angle

−6.3

Vertical break gap vs fastball

−4.6

Break across arm slot

+3.7

Seam-shifted wake: amount

−2.1

Velocity

+2.0

Horizontal geometry

−1.9

Everything else

−5.5

4-Seam Fastball

16.4%|Pitching+103

PLoc+

117▲-> 2027

Velocity

97.6mph

Spin

2402rpm

CSW%

24.1%

iVB / iHB

13.4" / 9.1"

Stuff+

DLoc+

Pitching+

vs L

93▼

100

102

vs R

101

90▼

105▲

Grade drivers

League-average 4-Seam Fastball · 100 → 97.0

Break across arm slot

−6.0

Vertical approach angle

+4.3

Velocity

+3.7

Horizontal geometry

−2.2

Release height

−0.9

Seam-shifted wake: amount

+0.7

Everything else

−2.6

Curveball

14.7%|Pitching+108▲

PLoc+

118▲-> 2027

Velocity

89.6mph

Spin

2646rpm

CSW%

23.4%

iVB / iHB

0.9" / -3.8"

Stuff+

DLoc+

Pitching+

vs L

106▲

107▲

vs R

108▲

111▲

108▲

Grade drivers

League-average Curveball · 100 → 107.7

Velocity

+19.2

Horizontal geometry

−2.9

Carry along arm slot

−1.7

Arm angle

−1.5

Release height

−1.5

Spin rate

+1.2

Everything else

−5.1

Cutter

6%|Pitching+99

PLoc+

121▲-> 2027

Velocity

95.2mph

Spin

2454rpm

CSW%

20.7%

iVB / iHB

8.4" / 1.9"

Stuff+

DLoc+

Pitching+

vs L

92▼

119▲

vs R

84▼

113▲

Grade drivers

League-average Cutter · 100 → 86.2

Velocity

+11.1

Break across arm slot

−8.6

Carry along arm slot

−6.8

Horizontal geometry

−5.4

Seam-shifted wake: amount

−1.7

Release height

−1.2

Everything else

−1.2

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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Last 30 games in 2026

Jonathan Loáisiga

Pitch Arsenal

2-Seam Fastball

Changeup

4-Seam Fastball

Curveball

Cutter

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