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St. Petersburg Pirates (AAA)
Masahito Yamamoto
Birthdate:
May 7, 2004 (26 y, 1 m, 3 d)Born In:
Hirakata, OSA, JPNNationality:
Japanese
Position:
PBats/Throws:
S/RHeight/Weight:
6'2"/195Entry:
2025 Draft
- Round: 8, Overall: 144, Team: Chicago Pit Bulls
Contract:
$740k / 1 year
ML Service Time:
NoneOSA Rating History
Loading Chart...
| Ratings Changes |
|---|
| 2030-05-27 |
|
Infield Error decreased from 40 to 35
|
|
Stuff decreased from 60 to 55
|
|
Screwball decreased from 70 to 65
|
| 2030-05-13 |
|
Speed decreased from 30 to 25
|
|
Weight increased from 194 to 195
|
| 2030-04-19 |
|
Power Potential increased from 25 to 30
|
|
Power increased from 25 to 30
|
|
Power vs R increased from 25 to 30
|
| 2030-04-08 |
|
Power vs L increased from 25 to 30
|
|
Stuff increased from 55 to 60
|
|
Weight increased from 193 to 194
|
| 2030-04-01 |
|
Power vs L decreased from 30 to 25
|
| 2030-03-04 |
|
Weight increased from 192 to 193
|
| 2030-02-25 |
|
Bunt for Hit decreased from 25 to 20
|
|
Stuff Potential decreased from 65 to 60
|
|
Stuff decreased from 60 to 55
|
|
Stamina increased from 25 to 30
|
| 2029-11-30 |
|
Role changed from CL to RP
|
| 2029-11-19 |
|
Role changed from RP to CL
|
| 2029-10-29 |
|
Power Potential decreased from 30 to 25
|
|
Power decreased from 30 to 25
|
|
Power vs R decreased from 30 to 25
|
| 2029-09-24 |
|
Role changed from CL to RP
|
|
Local Popularity decreased from Fair to Unknown
|
| 2029-09-14 |
|
Role changed from RP to CL
|
| 2029-07-09 |
|
Control Potential decreased from 45 to 40
|
|
GB% increased from 58% to 59%
|
| 2029-06-04 |
|
Bunt for Hit increased from 20 to 25
|
|
Outfield Range decreased from 25 to 20
|
|
Control vs L decreased from 45 to 40
|
| 2029-06-01 |
|
Control vs L increased from 40 to 45
|
| 2029-05-25 |
|
Control vs L decreased from 45 to 40
|
| 2029-05-21 |
|
Stuff vs R decreased from 60 to 55
|
| 2029-05-18 |
|
Control vs L increased from 40 to 45
|
| 2029-05-14 |
|
Control vs L decreased from 45 to 40
|
|
Weight increased from 191 to 192
|
| 2029-04-30 |
|
Bunt for Hit decreased from 25 to 20
|
|
Movement vs R increased from 50 to 55
|
|
Control vs L increased from 40 to 45
|
| 2029-04-09 |
|
Power vs R increased from 25 to 30
|
|
Stuff vs R increased from 55 to 60
|
| 2029-04-02 |
|
Power Potential increased from 25 to 30
|
|
Power increased from 25 to 30
|
| 2029-03-19 |
|
Weight increased from 190 to 191
|
| 2029-03-05 |
|
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
|
|
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
|
|
Power vs L increased from 25 to 30
|
|
Eye Potential decreased from 30 to 25
|
|
Eye vs L decreased from 30 to 25
|
|
Infield Error increased from 35 to 40
|
|
Turn Double Play increased from 20 to 25
|
|
Outfield Arm decreased from 30 to 25
|
|
Catcher Arm decreased from 25 to 20
|
|
Stuff increased from 55 to 60
|
|
Movement increased from 50 to 55
|
|
Control Potential increased from 40 to 45
|
|
Control increased from 35 to 40
|
|
Control vs R increased from 35 to 40
|
|
GB% increased from 57% to 58%
|
|
Stamina decreased from 30 to 25
|
|
Fastball increased from 65 to 70
|
|
Screwball Pot decreased from 75 to 70
|
| 2029-02-19 |
|
Eye decreased from 30 to 25
|
|
Control vs L increased from 35 to 40
|
| 2029-02-05 |
|
Eye vs R decreased from 30 to 25
|
|
Control vs L decreased from 40 to 35
|
|
Weight increased from 189 to 190
|
| 2028-12-11 |
|
Power Potential decreased from 30 to 25
|
|
Power vs L decreased from 30 to 25
|
|
Control vs L increased from 35 to 40
|
| 2028-12-04 |
|
Power vs L increased from 25 to 30
|
| 2028-11-16 |
|
Power Potential increased from 25 to 30
|
|
Eye vs R increased from 25 to 30
|
|
Stuff decreased from 60 to 55
|
| 2028-10-10 |
|
Weight decreased from 190 to 189
|
| 2028-09-25 |
|
Local Popularity increased from Unknown to Fair
|
| 2028-08-18 |
|
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 increased from 25 to 30
|
|
Gap vs R increased from 25 to 30
|
|
Bunt for Hit increased from 20 to 25
|
|
Movement decreased from 55 to 50
|
|
Control decreased from 40 to 35
|
|
Control vs L decreased from 40 to 35
|
|
GB% decreased from 58% to 57%
|
| 2028-07-07 |
|
Gap decreased from 30 to 25
|
|
Eye vs R decreased from 30 to 25
|
|
Bunt for Hit decreased from 25 to 20
|
|
Stuff increased from 55 to 60
|
|
Movement Potential decreased from 60 to 55
|
|
Movement vs R decreased from 55 to 50
|
|
Movement vs L decreased from 60 to 55
|
|
Control increased from 35 to 40
|
|
Control vs L increased from 35 to 40
|
|
GB% decreased from 61% to 58%
|
| 2028-07-03 |
|
Eye vs R increased from 25 to 30
|
| 2028-06-05 |
|
Gap vs R decreased from 30 to 25
|
|
Eye vs R decreased from 30 to 25
|
|
Control vs L decreased from 40 to 35
|
| 2028-05-29 |
|
Weight increased from 189 to 190
|
| 2028-05-08 |
|
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 decreased from 60 to 55
|
|
Movement vs R decreased from 60 to 55
|
|
Control vs L increased from 35 to 40
|
|
GB% decreased from 63% to 61%
|
| 2028-04-10 |
|
Control vs L decreased from 40 to 35
|
| 2028-04-03 |
|
Control Potential decreased from 45 to 40
|
|
Control decreased from 40 to 35
|
|
Control vs R decreased from 40 to 35
|
| 2028-03-06 |
|
Weight increased from 188 to 189
|
| 2027-12-20 |
|
Weight decreased from 189 to 188
|
| 2027-11-29 |
|
Stuff decreased from 60 to 55
|
|
Movement Potential decreased from 65 to 60
|
|
Weight increased from 188 to 189
|
| 2027-09-06 |
|
Weight decreased from 189 to 188
|
| 2027-08-09 |
|
Movement Potential increased from 60 to 65
|
| 2027-07-15 |
|
Stuff increased from 55 to 60
|
|
Screwball increased from 65 to 70
|
| 2027-06-14 |
|
Screwball Pot increased from 70 to 75
|
| 2027-05-10 |
|
Stuff vs L increased from 55 to 60
|
|
Movement increased from 55 to 60
|
|
Movement vs R increased from 55 to 60
|
| 2027-04-05 |
|
Power Potential decreased from 30 to 25
|
|
Movement vs L increased from 55 to 60
|
|
Screwball Pot decreased from 75 to 70
|
| 2027-03-01 |
|
Stuff vs R increased from 50 to 55
|
|
Fastball Pot decreased from 75 to 70
|
|
Screwball Pot increased from 70 to 75
|
|
Screwball increased from 60 to 65
|
| 2027-02-22 |
|
Weight increased from 188 to 189
|
| 2027-02-15 |
|
Stuff increased from 50 to 55
|
|
Stuff vs L increased from 50 to 55
|
|
Fastball Pot increased from 70 to 75
|
|
Fastball increased from 60 to 65
|
| 2027-01-01 |
|
Power decreased from 30 to 25
|
|
Power vs R decreased from 30 to 25
|
|
Power vs L decreased from 30 to 25
|
|
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
|
|
Bunt for Hit increased from 20 to 25
|
|
Speed decreased from 35 to 30
|
|
Infield Range decreased from 25 to 20
|
|
Infield Arm increased from 40 to 45
|
|
Turn Double Play decreased from 25 to 20
|
|
Outfield Arm increased from 25 to 30
|
|
Catcher Arm increased from 20 to 25
|
|
P defense decreased from 40 to 25
|
|
Stuff Potential decreased from 75 to 65
|
|
Stuff increased from 45 to 50
|
|
Stuff vs R increased from 45 to 50
|
|
Movement increased from 50 to 55
|
|
Movement vs R increased from 50 to 55
|
|
Movement vs L increased from 50 to 55
|
|
Control Potential decreased from 55 to 45
|
|
Control decreased from 55 to 40
|
|
Control vs R decreased from 55 to 40
|
|
Control vs L decreased from 55 to 40
|
|
Velocity increased from 96-98 mph to 97-99 mph
|
|
GB% increased from 62% to 63%
|
|
Fastball Pot decreased from 75 to 70
|
|
Screwball Pot decreased from 80 to 70
|
|
Screwball increased from 55 to 60
|
|
Weight increased from 185 to 188
|
| 2026-07-01 |
|
Stuff increased from 40 to 45
|
|
Stuff vs R increased from 35 to 45
|
|
Stuff vs L increased from 40 to 50
|
|
Movement increased from 45 to 50
|
|
Movement vs R increased from 45 to 50
|
|
Movement vs L increased from 45 to 50
|
|
Velocity increased from 95-97 mph to 96-98 mph
|
|
GB% increased from 60% to 62%
|
|
Fastball Pot increased from 70 to 75
|
|
Fastball increased from 55 to 60
|
|
Screwball increased from 45 to 55
|
|
Role changed from CL to RP
|
|
Weight increased from 184 to 185
|
| 2026-01-01 |
|
Outfield Arm decreased from 30 to 25
|
|
Stuff increased from 35 to 40
|
|
Movement Potential increased from 55 to 60
|
|
Movement increased from 40 to 45
|
|
Movement vs R increased from 35 to 45
|
|
Movement vs L increased from 40 to 45
|
|
Control increased from 45 to 55
|
|
Control vs R increased from 45 to 55
|
|
Control vs L increased from 45 to 55
|
|
GB% increased from 57% to 60%
|
|
Screwball increased from 40 to 45
|
|
Weight increased from 181 to 184
|
| 2025-07-01 |
|
Stuff Potential increased from 70 to 75
|
|
Stuff vs L increased from 35 to 40
|
|
Movement increased from 35 to 40
|
|
Movement vs L increased from 35 to 40
|
|
Control increased from 40 to 45
|
|
Control vs R increased from 40 to 45
|
|
Control vs L increased from 40 to 45
|
|
Velocity increased from 94-96 mph to 95-97 mph
|
|
GB% decreased from 58% to 57%
|
|
Fastball increased from 50 to 55
|
|
Weight decreased from 183 to 181
|
| 2025-01-01 |
|
Speed increased from 30 to 35
|
|
Movement Potential decreased from 60 to 55
|
|
Movement decreased from 40 to 35
|
|
Movement vs L decreased from 40 to 35
|
|
GB% decreased from 60% to 58%
|
| 2024-07-01 |
|
Movement Potential increased from 55 to 60
|
|
Movement increased from 35 to 40
|
|
Movement vs L increased from 35 to 40
|
|
Control increased from 35 to 40
|
|
Control vs R increased from 35 to 40
|
|
Control vs L increased from 35 to 40
|
|
GB% increased from 58% to 60%
|
|
Stamina decreased from 35 to 30
|
| 2024-01-01 |
|
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
|
|
P defense increased from 35 to 40
|
|
GB% increased from 57% to 58%
|
|
Weight decreased from 185 to 183
|
| 2023-07-01 |
|
Movement increased from 30 to 35
|
|
Movement vs R increased from 30 to 35
|
|
Control Potential decreased from 60 to 55
|
|
Hold increased from 30 to 35
|
|
Weight increased from 183 to 185
|
| 2023-01-01 |
|
Gap Potential increased from 25 to 30
|
|
Gap increased from 25 to 30
|
|
Gap vs R increased from 25 to 30
|
|
Bunt for Hit decreased from 25 to 20
|
|
Movement vs L increased from 30 to 35
|
|
Control Potential increased from 45 to 60
|
|
Control increased from 25 to 35
|
|
Control vs R increased from 25 to 35
|
|
Control vs L increased from 25 to 35
|
|
Stamina increased from 30 to 35
|
|
Screwball Pot increased from 75 to 80
|
| 2022-07-01 |
|
Weight decreased from 184 to 183
|