Jonathan Heasley

RHP

Team: Tampa Bay RaysThrows: RHeight: 6'3"Weight: 225 lbDOB: Jan 27, 1997Born: Charlotte, NC, USAActive

Compare

Games

11.25

ERA

10.5%

K-BB%

91.4 mph

FB Velo

18.8%

CSW%

Stuff+

-16 vs MLB 100

vL 86▼vR 81▼

DLoc+

109

+9 vs MLB 100

vL 107▲vR 111▲

Stockyard PLoc+

—

MLB season projection

Projects next-year DLoc+

Pitching+

-16 vs MLB 100

vL 97vR 100

Synergy

—

Pitch Arsenal

Click a pitch to collapse or expand details

4-Seam Fastball

39.1%|Pitching+95▼

Velocity

91.4mph

Spin

2100rpm

CSW%

16%

iVB / iHB

17.8" / 9.2"

Stuff+

DLoc+

Pitching+

vs L

85▼

115▲

95▼

vs R

85▼

119▲

95▼

Grade drivers

League-average 4-Seam Fastball · 100 → 83.5

Break across arm slot

−6.9

Carry along arm slot

+3.4

Horizontal geometry

−3.2

Velocity

−3.2

Vertical approach angle

−2.0

Seam-shifted wake: amount

−1.3

Everything else

−3.3

Slider

32.8%|Pitching+96

Velocity

83.2mph

Spin

2018rpm

CSW%

14.3%

iVB / iHB

0" / -3.4"

Stuff+

DLoc+

Pitching+

vs L

83▼

73▼

95▼

vs R

78▼

68▼

Grade drivers

League-average Slider · 100 → 75.9

Velocity

−7.6

Horizontal geometry

−3.5

Arm angle

−2.9

Spin rate

−2.3

Velo gap vs fastball

+2.0

Carry along arm slot

+1.7

Everything else

−11.5

Changeup

18.8%|Pitching+—

Velocity

84.2mph

Spin

1315rpm

CSW%

25%

iVB / iHB

-1.4" / 11.5"

Stuff+

DLoc+

Pitching+

vs L

—

vs R

—

Curveball

9.4%|Pitching+—

Velocity

79.9mph

Spin

2448rpm

CSW%

33.3%

iVB / iHB

-11.9" / -3"

Stuff+

DLoc+

Pitching+

vs L

—

vs R

—

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

Similar Pitchers

Last 30 games in 2026

Jonathan Heasley

RHP

Team: Tampa Bay RaysThrows: RHeight: 6'3"Weight: 225 lbDOB: Jan 27, 1997Born: Charlotte, NC, USAActive

Compare

Games

11.25

ERA

10.5%

K-BB%

91.4 mph

FB Velo

18.8%

CSW%

Stuff+

-16 vs MLB 100

vL 86▼vR 81▼

DLoc+

109

+9 vs MLB 100

vL 107▲vR 111▲

Stockyard PLoc+

—

MLB season projection

Projects next-year DLoc+

Pitching+

-16 vs MLB 100

vL 97vR 100

Synergy

—

Pitch Arsenal

Click a pitch to collapse or expand details

4-Seam Fastball

39.1%|Pitching+95▼

Velocity

91.4mph

Spin

2100rpm

CSW%

16%

iVB / iHB

17.8" / 9.2"

Stuff+

DLoc+

Pitching+

vs L

85▼

115▲

95▼

vs R

85▼

119▲

95▼

Grade drivers

League-average 4-Seam Fastball · 100 → 83.5

Break across arm slot

−6.9

Carry along arm slot

+3.4

Horizontal geometry

−3.2

Velocity

−3.2

Vertical approach angle

−2.0

Seam-shifted wake: amount

−1.3

Everything else

−3.3

Slider

32.8%|Pitching+96

Velocity

83.2mph

Spin

2018rpm

CSW%

14.3%

iVB / iHB

0" / -3.4"

Stuff+

DLoc+

Pitching+

vs L

83▼

73▼

95▼

vs R

78▼

68▼

Grade drivers

League-average Slider · 100 → 75.9

Velocity

−7.6

Horizontal geometry

−3.5

Arm angle

−2.9

Spin rate

−2.3

Velo gap vs fastball

+2.0

Carry along arm slot

+1.7

Everything else

−11.5

Changeup

18.8%|Pitching+—

Velocity

84.2mph

Spin

1315rpm

CSW%

25%

iVB / iHB

-1.4" / 11.5"

Stuff+

DLoc+

Pitching+

vs L

—

vs R

—

Curveball

9.4%|Pitching+—

Velocity

79.9mph

Spin

2448rpm

CSW%

33.3%

iVB / iHB

-11.9" / -3"

Stuff+

DLoc+

Pitching+

vs L

—

vs R

—

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

Similar Pitchers

Last 30 games in 2026

Jonathan Heasley

Pitch Arsenal

4-Seam Fastball

Slider

Changeup

Curveball

Similar Pitchers

Game Log

Jonathan Heasley

Pitch Arsenal

4-Seam Fastball

Slider

Changeup

Curveball

Similar Pitchers

Game Log