Jon Leonard
Seattle (DSL) Mariners (R)
Jon Leonard
Birthdate:
Oct. 3, 2019 (20 y, 11 m, 14 d)
Born In:
Simi Valley, CA, USA
Nationality:
American
Position:
P
Bats/Throws:
R/R
Height/Weight:
5'10"/169
Entry:
2038 Draft - Round: 9, Overall: 271, Team: Seattle Mariners
Contract:
Minor League
ML Service Time:
None
OSA Rating History
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Ratings Changes
2040-09-17
Stuff Potential decreased from 50 to 40
Stuff decreased from 40 to 35
Stuff vs R decreased from 40 to 35
Stuff vs L decreased from 40 to 35
Role changed from CL to SP
2040-09-10
Control decreased from 40 to 35
2040-09-03
Eye Potential decreased from 30 to 25
Stuff Potential increased from 40 to 50
Stuff increased from 35 to 40
Stuff vs R increased from 35 to 40
Stuff vs L increased from 35 to 40
Control increased from 35 to 40
Role changed from SP to CL
2040-08-20
Eye Potential increased from 25 to 30
2040-08-13
Eye Potential decreased from 30 to 25
Weight decreased from 170 to 169
2040-08-06
Stuff Potential decreased from 50 to 40
Stuff decreased from 40 to 35
Stuff vs R decreased from 40 to 35
Stuff vs L decreased from 40 to 35
Role changed from CL to SP
Weight increased from 169 to 170
2040-07-31
Eye Potential increased from 25 to 30
Control decreased from 40 to 35
2040-07-23
Power Potential decreased from 30 to 25
Power decreased from 30 to 25
Power vs R decreased from 30 to 25
Power vs L decreased from 30 to 25
Eye Potential decreased from 30 to 25
Stuff Potential increased from 40 to 50
Stuff increased from 35 to 40
Stuff vs R increased from 35 to 40
Stuff vs L increased from 35 to 40
Role changed from SP to CL
2040-07-09
Gap increased from 25 to 30
Gap vs R increased from 25 to 30
Gap vs L increased from 25 to 30
Power Potential increased from 25 to 30
Power increased from 25 to 30
Power vs R increased from 25 to 30
Power vs L increased from 25 to 30
Eye Potential increased from 25 to 30
Avoid Ks increased from 20 to 25
Avoid Ks vs R increased from 20 to 25
Avoid Ks vs L increased from 20 to 25
Movement Potential increased from 45 to 50
Movement increased from 30 to 45
Movement vs R increased from 30 to 45
Movement vs L increased from 25 to 45
Control increased from 35 to 40
Control vs R increased from 35 to 40
Velocity increased from 94-96 mph to 95-97 mph
Fastball increased from 45 to 50
Changeup increased from 20 to 25
Splitter Pot increased from 50 to 55
Splitter increased from 45 to 50
2040-07-02
Stuff increased from 30 to 35
Stuff vs L increased from 30 to 35
Movement increased from 25 to 30
Movement vs R increased from 25 to 30
2040-06-25
Movement vs R decreased from 30 to 25
2040-06-18
Stuff vs R increased from 30 to 35
Movement vs R increased from 25 to 30
2040-06-11
Eye Potential decreased from 30 to 25
2040-06-04
Power Potential decreased from 30 to 25
2040-05-21
Power Potential increased from 25 to 30
2040-05-14
Movement vs R decreased from 30 to 25
2040-05-07
Power Potential decreased from 30 to 25
Movement vs R increased from 25 to 30
2040-04-30
Avoid Ks vs L decreased from 25 to 20
Movement vs R decreased from 30 to 25
2040-04-23
Avoid Ks vs L increased from 20 to 25
Movement vs R increased from 25 to 30
2040-04-16
Power Potential increased from 25 to 30
Weight increased from 168 to 169
2040-04-02
Eye Potential increased from 25 to 30
Stuff Potential decreased from 45 to 40
Stuff decreased from 35 to 30
Stuff vs R decreased from 35 to 30
Stuff vs L decreased from 35 to 30
Role changed from RP to SP
Weight decreased from 169 to 168
2040-03-12
Role changed from CL to RP
Weight decreased from 170 to 169
2040-02-27
Stuff Potential increased from 40 to 45
Stuff increased from 30 to 35
Stuff vs R increased from 30 to 35
Stuff vs L increased from 30 to 35
Role changed from SP to CL
2040-02-23
Stuff Potential decreased from 45 to 40
Stuff decreased from 35 to 30
Stuff vs R decreased from 35 to 30
Stuff vs L decreased from 35 to 30
Movement decreased from 30 to 25
Movement vs R decreased from 30 to 25
Role changed from RP to SP
Weight decreased from 171 to 170
2040-02-13
Movement increased from 25 to 30
2040-02-06
Stuff Potential increased from 40 to 45
Stuff increased from 30 to 35
Stuff vs R increased from 30 to 35
Stuff vs L increased from 30 to 35
Role changed from SP to RP
2040-01-30
Stuff Potential decreased from 50 to 40
Stuff decreased from 35 to 30
Stuff vs R decreased from 35 to 30
Stuff vs L decreased from 35 to 30
Movement decreased from 30 to 25
Role changed from RP to SP
2040-01-23
Avoid Ks vs L decreased from 25 to 20
2040-01-16
Movement increased from 25 to 30
2040-01-09
Movement vs R increased from 25 to 30
2040-01-02
Avoid Ks vs L increased from 20 to 25
Stuff Potential increased from 40 to 50
Stuff increased from 30 to 35
Stuff vs R increased from 30 to 35
Stuff vs L increased from 30 to 35
Movement decreased from 30 to 25
Movement vs R decreased from 30 to 25
Movement vs L decreased from 30 to 25
Role changed from SP to RP
2039-12-25
Weight increased from 170 to 171
2039-11-28
Avoid Ks vs L decreased from 25 to 20
2039-11-02
Movement vs L increased from 25 to 30
2039-10-25
Movement increased from 25 to 30
2039-10-16
Movement decreased from 30 to 25
Movement vs L decreased from 30 to 25
2039-10-08
Movement vs L increased from 25 to 30
2039-09-26
Movement vs L decreased from 30 to 25
2039-09-05
Avoid Ks vs L increased from 20 to 25
2039-08-29
Avoid Ks vs L decreased from 25 to 20
2039-08-22
Stuff vs R decreased from 35 to 30
2039-08-15
Stuff Potential decreased from 50 to 40
Stuff decreased from 35 to 30
Stuff vs L decreased from 35 to 30
Role changed from CL to SP
2039-08-08
Avoid Ks vs L increased from 20 to 25
2039-08-01
Avoid Ks vs L decreased from 25 to 20
Stuff Potential increased from 40 to 50
Stuff increased from 30 to 35
Stuff vs L increased from 30 to 35
Role changed from SP to CL
2039-07-31
Stuff Potential decreased from 50 to 40
Stuff decreased from 35 to 30
Stuff vs L decreased from 35 to 30
Role changed from RP to SP
2039-07-18
Contact Potential decreased from 35 to 30
Gap increased from 20 to 25
Gap vs R increased from 20 to 25
Eye Potential decreased from 30 to 25
Avoid Ks Potential decreased from 35 to 30
Avoid Ks vs L increased from 20 to 25
Stuff Potential increased from 45 to 50
Stuff increased from 30 to 35
Stuff vs R increased from 30 to 35
Stuff vs L increased from 30 to 35
Movement vs L increased from 25 to 30
Control Potential decreased from 60 to 55
Control increased from 30 to 35
Control vs R increased from 30 to 35
Control vs L increased from 30 to 35
Velocity increased from 93-95 mph to 94-96 mph
Stamina increased from 45 to 50
Changeup Pot decreased from 30 to 25
Splitter increased from 40 to 45
Role changed from SP to RP
2039-07-11
Eye increased from 20 to 25
Eye vs R increased from 20 to 25
Movement vs L decreased from 30 to 25
Weight increased from 169 to 170
2039-07-04
Eye decreased from 25 to 20
Eye vs R decreased from 25 to 20
Movement vs L increased from 25 to 30
2039-06-27
Eye increased from 20 to 25
Eye vs R increased from 20 to 25
Stuff Potential decreased from 50 to 45
Stuff decreased from 35 to 30
Stuff vs R decreased from 35 to 30
Stuff vs L decreased from 35 to 30
Movement increased from 25 to 30
Role changed from CL to SP
2039-06-20
Eye decreased from 25 to 20
Eye vs R decreased from 25 to 20
Stuff Potential increased from 45 to 50
Stuff increased from 30 to 35
Stuff vs R increased from 30 to 35
Stuff vs L increased from 30 to 35
Movement vs R increased from 25 to 30
Role changed from SP to CL
2039-06-13
Eye increased from 20 to 25
Eye vs R increased from 20 to 25
2039-06-06
Eye decreased from 25 to 20
Eye vs R decreased from 25 to 20
2039-04-11
Stuff Potential increased from 40 to 45
2039-04-04
Contact Potential increased from 30 to 35
Control Potential increased from 55 to 60
2039-03-21
Weight increased from 168 to 169
2039-02-28
Contact Potential decreased from 35 to 30
Stuff Potential decreased from 50 to 40
Stuff decreased from 35 to 30
Stuff vs R decreased from 35 to 30
Stuff vs L decreased from 35 to 30
Control Potential decreased from 60 to 55
Role changed from RP to SP
Weight increased from 167 to 168
2039-02-07
Movement vs R decreased from 30 to 25
2039-01-31
Eye increased from 20 to 25
Eye vs R increased from 20 to 25
Weight increased from 166 to 167
2039-01-17
Movement vs R increased from 25 to 30
2038-12-27
Stuff Potential increased from 40 to 50
Stuff increased from 30 to 35
Stuff vs R increased from 30 to 35
Stuff vs L increased from 30 to 35
Movement vs R decreased from 30 to 25
Role changed from SP to RP
2038-12-25
Eye decreased from 25 to 20
Eye vs R decreased from 25 to 20
2038-12-20
Eye increased from 20 to 25
Eye vs R increased from 20 to 25
Stuff Potential decreased from 45 to 40
Weight decreased from 167 to 166
2038-12-13
Speed increased from 25 to 30
Movement vs R increased from 25 to 30
2038-12-06
Movement vs R decreased from 30 to 25
Weight increased from 166 to 167
2038-11-29
Eye decreased from 25 to 20
Eye vs R decreased from 25 to 20
2038-11-04
Movement vs R increased from 25 to 30
2038-10-27
Eye increased from 20 to 25
Eye vs R increased from 20 to 25
2038-10-15
Eye decreased from 25 to 20
Eye vs R decreased from 25 to 20
2038-10-09
Eye increased from 20 to 25
Eye vs R increased from 20 to 25
2038-09-27
Eye decreased from 25 to 20
Eye vs R decreased from 25 to 20
2038-09-20
Weight decreased from 167 to 166
2038-09-13
Movement vs R decreased from 30 to 25
2038-09-06
Weight decreased from 168 to 167
2038-08-02
Power Potential decreased from 30 to 25
Movement decreased from 30 to 25
2038-07-26
Power Potential increased from 25 to 30
Movement increased from 25 to 30
2038-07-19
Gap vs L increased from 20 to 25
Eye increased from 20 to 25
Eye vs R increased from 20 to 25
Avoid Ks vs L decreased from 25 to 20
Sac Bunt increased from 40 to 45
Infield Arm increased from 45 to 50
Movement vs R increased from 25 to 30
Control Potential increased from 55 to 60
Splitter Pot decreased from 55 to 50
2038-07-12
Eye decreased from 25 to 20
Eye vs R decreased from 25 to 20
Avoid Ks vs L increased from 20 to 25
2038-07-05
Power Potential decreased from 30 to 25
2038-06-28
Power Potential increased from 25 to 30
Eye increased from 20 to 25
Eye vs R increased from 20 to 25
2038-06-07
Eye vs L increased from 20 to 25
2038-05-31
Weight increased from 167 to 168
2038-05-24
Eye vs L decreased from 25 to 20
2038-05-17
Eye vs L increased from 20 to 25
2038-04-19
Eye vs L decreased from 25 to 20
2038-04-05
Contact Potential increased from 30 to 35
Eye vs L increased from 20 to 25
Stuff Potential increased from 40 to 45
2038-02-15
Stuff Potential decreased from 45 to 40
2038-02-08
Splitter Pot increased from 50 to 55
2038-02-01
Contact Potential decreased from 35 to 30
Sac Bunt decreased from 45 to 40
P defense increased from 45 to 50
Stuff Potential decreased from 50 to 45
Stuff decreased from 35 to 30
Stuff vs R decreased from 35 to 30
Stuff vs L decreased from 35 to 30
Movement increased from 20 to 25
Movement vs R increased from 20 to 25
Movement vs L increased from 20 to 25
Control Potential decreased from 60 to 55
Control increased from 25 to 30
Control vs R increased from 25 to 30
Control vs L increased from 25 to 30
Stamina increased from 40 to 45
Changeup Pot decreased from 35 to 30
Splitter Pot decreased from 55 to 50
Role changed from RP to SP
2038-01-11
Weight decreased from 168 to 167
2038-01-04
Contact Potential increased from 30 to 35
2037-12-28
Contact Potential decreased from 35 to 30
2037-12-25
Weight increased from 167 to 168
2037-12-14
Weight increased from 166 to 167
2037-09-21
Weight decreased from 167 to 166
2037-06-22
Contact Potential increased from 30 to 35
Weight increased from 166 to 167
2037-04-06
Stuff increased from 30 to 35
Stuff vs R increased from 30 to 35
Stuff vs L increased from 30 to 35
Control Potential increased from 55 to 60
2037-02-26
Control Potential decreased from 60 to 55
2037-02-16
Control Potential increased from 55 to 60
2037-02-09
Contact increased from 20 to 25
Contact vs R increased from 20 to 25
Contact vs L increased from 20 to 25
Infield Error increased from 25 to 30
Turn Double Play decreased from 25 to 20
Stuff Potential decreased from 55 to 50
Movement Potential increased from 40 to 45
Control Potential decreased from 60 to 55
GB% increased from 58% to 59%
Splitter Pot decreased from 60 to 55
2037-01-26
Weight decreased from 167 to 166
2037-01-19
Weight decreased from 168 to 167
2037-01-01
Stuff decreased from 35 to 30
Stuff vs R decreased from 35 to 30
Stuff vs L decreased from 35 to 30
Weight increased from 167 to 168
2036-07-01
Stuff Potential decreased from 65 to 55
Stuff increased from 30 to 35
Stuff vs R increased from 30 to 35
Stuff vs L increased from 30 to 35
Movement Potential decreased from 45 to 40
GB% decreased from 59% to 58%
Fastball Pot decreased from 70 to 65
Changeup Pot decreased from 40 to 35
Splitter Pot decreased from 65 to 60
Weight increased from 166 to 167
2036-01-01
Power increased from 20 to 25
Power vs R increased from 20 to 25
Power vs L increased from 20 to 25
Weight increased from 157 to 166
Height increased from 177 to 180
2035-07-01
Power decreased from 25 to 20
Power vs R decreased from 25 to 20
Power vs L decreased from 25 to 20
Weight increased from 156 to 157