Jon Heasley
Free Agent
Jon Heasley
Birthdate:
Jan. 27, 1997 (33 y, 1 m, 9 d)
Born In:
Dallas, TX, USA
Nationality:
American
Position:
P
Bats/Throws:
R/R
Height/Weight:
6'3"/214
Entry:
Unknown
Contract:
Free Agent
ML Service Time:
2 years, 140 days
OSA Rating History
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Ratings Changes
2030-02-11
Weight decreased from 215 to 214
2030-01-04
Weight decreased from 216 to 215
2029-11-25
Role changed from RP to SP
2029-11-02
Control Potential increased from 50 to 55
Control increased from 50 to 55
Control vs R increased from 50 to 55
Local Popularity increased from Insignificant to Fair
2029-08-11
Stamina decreased from 55 to 50
2029-06-26
Role changed from SP to RP
2029-04-22
Infield Range decreased from 40 to 35
Velocity decreased from 95-97 mph to 92-94 mph
GB% increased from 55% to 59%
Fastball Pot decreased from 55 to 50
Fastball decreased from 55 to 50
Slider Pot decreased from 55 to 45
Slider decreased from 55 to 45
2029-04-07
Weight decreased from 217 to 216
2028-12-08
Weight decreased from 218 to 217
2028-11-02
Contact Potential increased from 20 to 25
Contact increased from 20 to 25
Contact vs R increased from 20 to 25
Contact vs L increased from 20 to 25
Gap Potential increased from 25 to 30
Gap increased from 25 to 30
Gap vs R increased from 25 to 30
Gap vs L increased from 25 to 30
Eye Potential decreased from 25 to 20
Eye decreased from 25 to 20
Eye vs R decreased from 25 to 20
Eye vs L decreased from 25 to 20
Avoid Ks Potential increased from 20 to 30
Avoid Ks increased from 20 to 30
Avoid Ks vs R increased from 20 to 30
Avoid Ks vs L increased from 20 to 30
Speed decreased from 20 to 0
Stealing decreased from 25 to 0
Baserunning decreased from 35 to 0
Outfield Arm decreased from 25 to 20
Movement Potential increased from 45 to 50
Movement increased from 45 to 50
Movement vs R increased from 45 to 50
Movement vs L increased from 45 to 50
Fastball Pot decreased from 60 to 55
Fastball decreased from 60 to 55
Cutter Pot decreased from 50 to 45
Cutter decreased from 50 to 45
Slider Pot increased from 45 to 55
Slider increased from 45 to 55
2028-09-11
Weight increased from 217 to 218
2028-09-01
Weight decreased from 218 to 217
2028-07-23
Movement Potential increased from 40 to 45
Movement increased from 40 to 45
Movement vs R increased from 40 to 45
Movement vs L increased from 40 to 45
GB% increased from 51% to 55%
Cutter Pot increased from 45 to 50
Cutter increased from 45 to 50
Changeup Pot decreased from 55 to 50
Changeup decreased from 55 to 50
2028-07-07
Weight increased from 217 to 218
2028-06-22
Movement vs L increased from 35 to 40
2028-06-07
Weight decreased from 218 to 217
2028-04-03
Power Potential increased from 20 to 25
Power increased from 20 to 25
Power vs R increased from 20 to 25
Power vs L increased from 20 to 25
Movement vs L decreased from 40 to 35
2028-01-04
Weight increased from 217 to 218
2027-11-05
Power Potential decreased from 25 to 20
Power decreased from 25 to 20
Power vs R decreased from 25 to 20
Power vs L decreased from 25 to 20
2027-10-27
Weight decreased from 218 to 217
2027-09-23
Weight decreased from 219 to 218
2027-08-24
Weight increased from 218 to 219
2027-07-30
Cutter Pot decreased from 50 to 45
Cutter decreased from 50 to 45
2027-07-20
Eye Potential decreased from 30 to 25
Eye decreased from 30 to 25
Eye vs R decreased from 30 to 25
Eye vs L decreased from 30 to 25
Avoid Ks Potential decreased from 25 to 20
Avoid Ks decreased from 25 to 20
Avoid Ks vs R decreased from 25 to 20
Avoid Ks vs L decreased from 25 to 20
Sac Bunt decreased from 45 to 40
Movement vs L increased from 35 to 40
Control Potential decreased from 55 to 50
Control decreased from 55 to 50
Control vs R decreased from 55 to 50
GB% increased from 50% to 51%
Cutter Pot increased from 45 to 50
Cutter increased from 45 to 50
Slider Pot decreased from 50 to 45
Slider decreased from 50 to 45
2027-05-25
Power Potential increased from 20 to 25
Power increased from 20 to 25
Power vs R increased from 20 to 25
Power vs L increased from 20 to 25
Control Potential increased from 50 to 55
Control increased from 50 to 55
2027-04-15
Weight increased from 217 to 218
2027-04-05
Power Potential decreased from 25 to 20
Power decreased from 25 to 20
Power vs R decreased from 25 to 20
Power vs L decreased from 25 to 20
Control Potential decreased from 55 to 50
Control decreased from 55 to 50
Cutter Pot decreased from 50 to 45
Cutter decreased from 50 to 45
2027-01-01
Power Potential increased from 20 to 25
Power increased from 20 to 25
Power vs R increased from 20 to 25
Power vs L increased from 20 to 25
Stuff Potential decreased from 50 to 45
Stuff decreased from 50 to 45
Stuff vs R decreased from 50 to 45
Stuff vs L decreased from 50 to 45
Control Potential increased from 50 to 55
Control increased from 50 to 55
Cutter increased from 45 to 50
Role changed from CL to SP
Weight increased from 216 to 217
2026-07-01
Contact Potential decreased from 25 to 20
Contact decreased from 25 to 20
Contact vs R decreased from 25 to 20
Contact vs L decreased from 25 to 20
Eye Potential increased from 25 to 30
Eye increased from 25 to 30
Eye vs R increased from 25 to 30
Eye vs L increased from 25 to 30
Stuff Potential increased from 45 to 50
Stuff increased from 45 to 50
Stuff vs L increased from 45 to 50
Control vs R increased from 50 to 55
GB% decreased from 51% to 50%
Slider Pot decreased from 55 to 50
Slider decreased from 55 to 50
Role changed from SP to CL
2026-01-01
Contact Potential increased from 20 to 25
Contact increased from 20 to 25
Contact vs R increased from 20 to 25
Contact vs L increased from 20 to 25
Gap Potential decreased from 30 to 25
Gap decreased from 30 to 25
Gap vs R decreased from 30 to 25
Gap vs L decreased from 30 to 25
Infield Range increased from 35 to 40
Infield Error decreased from 55 to 50
Outfield Arm increased from 20 to 25
Movement Potential decreased from 45 to 40
Movement decreased from 45 to 40
Movement vs R decreased from 45 to 40
Movement vs L decreased from 45 to 35
Control Potential decreased from 60 to 50
Control decreased from 60 to 50
Control vs R decreased from 60 to 50
Control vs L decreased from 60 to 50
GB% increased from 49% to 51%
Cutter decreased from 50 to 45
Weight decreased from 217 to 216
Local Popularity decreased from Well Known to Insignificant
National Popularity decreased from Fair to Insignificant
2025-07-01
Eye Potential decreased from 30 to 25
Eye decreased from 30 to 25
Eye vs R decreased from 30 to 25
Eye vs L decreased from 30 to 25
Bunt for Hit increased from 20 to 25
Speed decreased from 25 to 20
Catcher Arm decreased from 25 to 20
Stuff Potential decreased from 50 to 45
Stuff decreased from 50 to 45
Stuff vs L decreased from 50 to 45
Control Potential decreased from 65 to 60
GB% increased from 47% to 49%
Stamina increased from 50 to 55
Role changed from RP to SP
Weight increased from 216 to 217
2025-01-01
Outfield Range decreased from 30 to 25
Stuff Potential increased from 45 to 50
Stuff increased from 45 to 50
Stuff vs R increased from 45 to 50
Stuff vs L increased from 45 to 50
Control Potential increased from 60 to 65
GB% decreased from 49% to 47%
Role changed from SP to RP
Weight decreased from 217 to 216
Local Popularity increased from Fair to Well Known
National Popularity increased from Insignificant to Fair
2024-07-01
Movement Potential increased from 40 to 45
Movement increased from 40 to 45
Movement vs R increased from 40 to 45
Movement vs L increased from 40 to 45
Control Potential increased from 55 to 60
Control increased from 55 to 60
Control vs R increased from 55 to 60
Control vs L increased from 55 to 60
Velocity increased from 94-96 mph to 95-97 mph
GB% decreased from 50% to 49%
Fastball Pot increased from 55 to 60
Fastball increased from 55 to 60
Cutter Pot increased from 0 to 50
Cutter increased from 0 to 50
Slider Pot increased from 50 to 55
Slider increased from 50 to 55
Role changed from RP to SP
Weight decreased from 219 to 217
2024-01-01
Outfield Error decreased from 30 to 25
GB% decreased from 52% to 50%
Weight increased from 217 to 219
Local Popularity increased from Unknown to Fair
National Popularity increased from Unknown to Insignificant
2023-07-01
Bunt for Hit decreased from 25 to 20
Stuff vs R decreased from 50 to 45
Control Potential decreased from 65 to 55
GB% increased from 51% to 52%
Weight increased from 216 to 217
2023-01-01
Contact Potential decreased from 25 to 20
Contact decreased from 25 to 20
Contact vs R decreased from 25 to 20
Contact vs L decreased from 25 to 20
Movement Potential decreased from 45 to 40
Movement decreased from 45 to 40
Movement vs R decreased from 45 to 40
Movement vs L decreased from 45 to 40
Control decreased from 60 to 55
Control vs R decreased from 60 to 55
Control vs L decreased from 60 to 55
Fastball Pot decreased from 60 to 55
Fastball decreased from 60 to 55
Changeup Pot decreased from 65 to 55
Changeup decreased from 60 to 55
Role changed from SP to RP