Du-yang Mah
Free Agent
Du-yang Mah
Birthdate:
Dec. 22, 2026 (31 y, 11 m, 9 d)
Born In:
Foshan, GUA, CHN
Nationality:
Chinese
Position:
P
Bats/Throws:
L/L
Height/Weight:
6'4"/198
Entry:
Unknown
Contract:
Free Agent
ML Service Time:
1 years, 124 days
OSA Rating History
Loading Chart...
Ratings Changes
2058-12-16
GB% increased from 59% to 60%
Local Popularity decreased from Well Known to Fair
2058-12-01
Contact vs R decreased from 4 to 3
Stuff Potential decreased from 7 to 6
Stuff decreased from 7 to 6
Stuff vs R decreased from 7 to 6
Stuff vs L decreased from 7 to 6
Velocity decreased from 96-98 mph to 95-97 mph
Fastball Pot decreased from 9 to 8
Fastball decreased from 9 to 8
2058-11-07
Contact vs R increased from 3 to 4
Power Potential increased from 1 to 2
Power increased from 1 to 2
Power vs R increased from 1 to 2
Power vs L increased from 1 to 2
Avoid Ks Potential decreased from 5 to 4
Avoid Ks decreased from 5 to 4
Avoid Ks vs R decreased from 5 to 4
Speed decreased from 1 to 0
Stealing decreased from 1 to 0
Baserunning decreased from 1 to 0
Stuff Potential decreased from 10 to 7
Stuff decreased from 10 to 7
Stuff vs R decreased from 10 to 7
Stuff vs L decreased from 10 to 7
Control Potential decreased from 7 to 6
Control decreased from 7 to 6
Control vs R decreased from 7 to 6
Control vs L decreased from 7 to 6
Hold increased from 10 to 11
2058-10-28
Gap vs R decreased from 4 to 3
Movement vs L decreased from 5 to 4
GB% decreased from 60% to 59%
2058-09-16
Weight increased from 197 to 198
2058-07-15
Gap vs R increased from 3 to 4
2058-06-17
Movement vs L increased from 4 to 5
2058-06-03
Movement vs L decreased from 5 to 4
2058-04-29
Movement Potential decreased from 5 to 4
Movement decreased from 5 to 4
Movement vs R decreased from 5 to 4
GB% decreased from 62% to 60%
2058-03-18
Weight decreased from 198 to 197
2058-02-25
GB% increased from 61% to 62%
Weight increased from 197 to 198
2058-01-01
Weight increased from 196 to 197
2057-12-16
Weight decreased from 197 to 196
2057-12-01
Weight decreased from 198 to 197
2057-10-18
GB% increased from 60% to 61%
2057-10-09
Avoid Ks Potential increased from 4 to 5
Avoid Ks increased from 4 to 5
2057-09-05
Avoid Ks Potential decreased from 5 to 4
Avoid Ks decreased from 5 to 4
2057-08-29
Avoid Ks Potential increased from 4 to 5
Avoid Ks increased from 4 to 5
Weight decreased from 199 to 198
2057-08-01
Avoid Ks Potential decreased from 5 to 4
Avoid Ks decreased from 5 to 4
Weight increased from 198 to 199
2057-07-18
Gap vs R decreased from 4 to 3
Fastball Pot decreased from 10 to 9
Fastball decreased from 10 to 9
2057-06-24
Fastball Pot increased from 9 to 10
Fastball increased from 9 to 10
2057-05-20
Gap vs R increased from 3 to 4
2057-05-06
Fastball Pot decreased from 10 to 9
Fastball decreased from 10 to 9
2057-03-29
Movement Potential increased from 4 to 5
Movement increased from 4 to 5
Movement vs R increased from 4 to 5
Movement vs L increased from 4 to 5
GB% increased from 58% to 60%
2057-01-26
Contact vs R decreased from 4 to 3
2057-01-01
Eye Potential decreased from 2 to 1
Movement Potential decreased from 5 to 4
2056-12-16
Movement vs L decreased from 5 to 4
2056-12-01
Contact vs R increased from 3 to 4
2056-11-17
Role changed from CL to RP
2056-11-08
Contact vs R decreased from 4 to 3
2056-10-28
Contact Potential decreased from 4 to 3
Contact decreased from 4 to 3
Power vs R decreased from 2 to 1
2056-10-19
Power vs R increased from 1 to 2
National Popularity decreased from Well Known to Fair
2056-10-09
Weight decreased from 199 to 198
2056-09-09
Movement decreased from 5 to 4
2056-09-02
Power vs R decreased from 2 to 1
2056-08-26
Role changed from RP to CL
2056-08-19
Power vs R increased from 1 to 2
Fastball increased from 9 to 10
2056-08-12
Movement Potential increased from 4 to 5
Movement increased from 4 to 5
Movement vs L increased from 4 to 5
GB% increased from 56% to 58%
Role changed from CL to RP
2056-07-08
Fastball decreased from 10 to 9
2056-06-24
Fastball increased from 9 to 10
2056-04-29
GB% increased from 54% to 56%
Role changed from RP to CL
2056-04-08
Role changed from CL to RP
2056-03-31
Role changed from RP to CL
2056-03-18
Role changed from CL to RP
2056-02-26
Contact vs L decreased from 4 to 3
2056-01-27
Gap vs R decreased from 4 to 3
GB% decreased from 55% to 54%
Role changed from RP to CL
Weight decreased from 200 to 199
2055-12-16
Gap vs R increased from 3 to 4
2055-10-19
Local Popularity increased from Unknown to Well Known
National Popularity increased from Unknown to Well Known
2055-07-14
Stuff Potential increased from 8 to 10
Stuff increased from 8 to 10
Stuff vs R increased from 8 to 10
Stuff vs L increased from 8 to 10
Role changed from SP to RP
2055-06-30
Fastball Pot increased from 9 to 10
2055-06-23
Contact vs L increased from 3 to 4
2055-06-09
Contact vs L decreased from 4 to 3
2055-05-26
Stuff Potential decreased from 10 to 8
Stuff decreased from 10 to 8
Stuff vs R decreased from 10 to 8
Stuff vs L decreased from 10 to 8
Role changed from RP to SP
2055-04-14
Fastball Pot decreased from 10 to 9
Fastball decreased from 10 to 9
2055-03-31
Weight increased from 199 to 200
2055-03-18
Fastball increased from 9 to 10
2055-01-26
GB% decreased from 56% to 55%
2055-01-01
GB% increased from 54% to 56%
Weight decreased from 200 to 199
2054-07-01
Gap vs R decreased from 4 to 3
GB% increased from 52% to 54%
Stamina increased from 5 to 6
2054-01-01
Eye Potential increased from 1 to 2
Control Potential increased from 6 to 7
Control increased from 6 to 7
Control vs R increased from 6 to 7
GB% decreased from 54% to 52%
Stamina decreased from 6 to 5
Fastball decreased from 10 to 9
Changeup Pot decreased from 1 to 0
Changeup decreased from 1 to 0
2053-07-01
GB% increased from 53% to 54%
Stamina increased from 5 to 6
Changeup Pot decreased from 2 to 1
Changeup decreased from 2 to 1
2053-01-01
Gap vs R increased from 3 to 4
Sac Bunt decreased from 9 to 8
GB% decreased from 55% to 53%
Changeup Pot increased from 1 to 2
Changeup increased from 1 to 2
Weight increased from 199 to 200
2052-07-01
Gap vs R decreased from 4 to 3
Control vs L increased from 6 to 7
GB% increased from 54% to 55%
Weight decreased from 200 to 199
2052-01-01
GB% increased from 49% to 54%
Stamina decreased from 6 to 5
2051-07-01
Power vs R decreased from 2 to 1
GB% decreased from 52% to 49%
2051-01-01
Contact vs R decreased from 5 to 4
Gap Potential decreased from 4 to 3
Gap decreased from 4 to 3
Power vs R increased from 1 to 2
Avoid Ks vs L decreased from 5 to 4
GB% increased from 50% to 52%
Weight increased from 199 to 200
2050-07-01
Weight decreased from 201 to 199
2050-01-01
Movement Potential decreased from 5 to 4
Movement decreased from 5 to 4
Movement vs L decreased from 5 to 4
Velocity increased from 95-97 mph to 96-98 mph
GB% decreased from 54% to 50%
Fastball Pot increased from 9 to 10
Fastball increased from 9 to 10
2049-07-01
Outfield Range decreased from 3 to 2
Outfield Error decreased from 7 to 6
Movement vs R decreased from 5 to 4
GB% decreased from 55% to 54%
Weight increased from 199 to 201
2049-01-01
Local Popularity decreased from Insignificant to Unknown
2048-07-01
Stuff Potential increased from 9 to 10
Stuff increased from 9 to 10
Stuff vs R increased from 9 to 10
Stuff vs L increased from 9 to 10
Velocity increased from 94-96 mph to 95-97 mph
Weight increased from 197 to 199
2048-01-01
P defense decreased from 2 to 1
Velocity increased from 93-95 mph to 94-96 mph
GB% decreased from 56% to 55%
Weight increased from 196 to 197
Local Popularity increased from Unknown to Insignificant
2047-07-01
Weight increased from 194 to 196
2047-01-01
Outfield Error increased from 6 to 7
P defense increased from 1 to 2
Stuff Potential increased from 7 to 9
Stuff increased from 7 to 9
Stuff vs R increased from 8 to 9
Stuff vs L increased from 7 to 9
GB% increased from 55% to 56%
Role changed from SP to RP
2046-07-01
Stuff vs R increased from 7 to 8
Control increased from 5 to 6
Control vs R increased from 5 to 6
Control vs L increased from 5 to 6
Velocity increased from 92-94 mph to 93-95 mph
Fastball Pot increased from 8 to 9
Fastball increased from 8 to 9
Weight increased from 193 to 194
2046-01-01
Control increased from 4 to 5
Control vs R increased from 4 to 5
GB% decreased from 58% to 55%
Weight increased from 191 to 193
Height increased from 194 to 195
2045-07-01
Infield Error increased from 2 to 3
Outfield Range decreased from 4 to 3
Stuff Potential decreased from 9 to 7
Control vs L increased from 4 to 5
GB% increased from 56% to 58%
Stamina decreased from 8 to 6
Curveball increased from 8 to 9
Role changed from RP to SP
Weight increased from 187 to 191
2045-01-01
Contact Potential increased from 2 to 4
Contact increased from 2 to 4
Contact vs R increased from 3 to 5
Contact vs L increased from 2 to 4
Gap Potential increased from 2 to 4
Gap increased from 2 to 4
Gap vs R increased from 2 to 4
Gap vs L increased from 2 to 3
Avoid Ks Potential increased from 3 to 5
Avoid Ks increased from 3 to 5
Avoid Ks vs R increased from 3 to 5
Avoid Ks vs L increased from 3 to 5
Stuff Potential increased from 7 to 9
Stuff increased from 5 to 7
Stuff vs R increased from 5 to 7
Stuff vs L increased from 5 to 7
Movement Potential increased from 3 to 5
Movement increased from 3 to 5
Movement vs R increased from 3 to 5
Movement vs L increased from 4 to 5
Control Potential increased from 4 to 6
Control increased from 3 to 4
Control vs R increased from 3 to 4
Control vs L increased from 3 to 4
Curveball increased from 7 to 8
Weight decreased from 188 to 187
2044-07-01
Contact Potential decreased from 3 to 2
Contact vs R increased from 2 to 3
Movement Potential decreased from 4 to 3
Control Potential decreased from 5 to 4
Local Popularity decreased from Insignificant to Unknown
2044-01-01
Contact Potential increased from 2 to 3
Outfield Range increased from 3 to 4
GB% decreased from 57% to 56%
Role changed from CL to RP
Local Popularity increased from Unknown to Insignificant
2043-07-01
Contact Potential decreased from 3 to 2
Infield Arm increased from 5 to 6
Outfield Range decreased from 4 to 3
Outfield Error increased from 5 to 6
P defense decreased from 2 to 1
Stuff Potential increased from 6 to 7
Velocity increased from 91-93 mph to 92-94 mph
Fastball increased from 7 to 8
Role changed from RP to CL
Weight increased from 183 to 188
Height increased from 192 to 194
2043-01-01
Contact Potential increased from 2 to 3
P defense decreased from 4 to 2
Stuff increased from 4 to 5
Stuff vs R increased from 4 to 5
Stuff vs L increased from 4 to 5
Velocity increased from 89-91 mph to 91-93 mph
Fastball Pot increased from 7 to 8
Curveball Pot increased from 8 to 9
Weight increased from 177 to 183
Height increased from 190 to 192
2042-07-01
Stuff Potential increased from 4 to 6
Stuff increased from 3 to 4
Stuff vs R increased from 3 to 4
Stuff vs L increased from 3 to 4
Velocity increased from 88-90 mph to 89-91 mph
Fastball increased from 6 to 7
Role changed from SP to RP
Weight decreased from 178 to 177