Jeff Karstens
Seattle Mariners (ML)
Jeff Karstens
Birthdate:
Sept. 24, 1982 (28 y, 7 m, 18 d)
Nationality:
American
Position:
P
Bats/Throws:
R/R
Height/Weight:
6'3"/189
Entry:
2002 Draft - Round: 5, Overall: 131, Team: Cincinnati Reds
Contract:
$1.1M / 1 year
ML Service Time:
4 years, 72 days
OSA Rating History
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Ratings Changes
2011-05-12
Movement vs L increased from 45 to 50
GB% decreased from 61% to 59%
Changeup increased from 50 to 55
Weight increased from 188 to 189
2011-03-31
Role changed from SP to RP
2011-02-24
Stuff vs L increased from 45 to 50
GB% decreased from 62% to 61%
2011-01-13
Stuff vs L decreased from 50 to 45
Role changed from RP to SP
2010-11-02
Local Popularity decreased from Very Popular to Popular
National Popularity decreased from Very Popular to Popular
2010-10-05
Control Potential increased from 65 to 70
GB% increased from 61% to 62%
Changeup Pot increased from 50 to 55
Role changed from SP to RP
2010-08-08
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
Movement increased from 45 to 50
GB% increased from 60% to 61%
2010-07-26
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
Stuff vs L increased from 45 to 50
Movement vs R increased from 45 to 50
Control Potential decreased from 70 to 65
Curveball Pot decreased from 50 to 45
2010-03-14
Stuff vs L decreased from 50 to 45
Role changed from CL to SP
2009-11-24
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
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
Avoid Ks Potential decreased from 30 to 25
Avoid Ks decreased from 30 to 25
Avoid Ks vs R decreased from 30 to 25
Avoid Ks vs L decreased from 30 to 25
Speed decreased from 25 to 0
Stealing decreased from 20 to 0
Baserunning decreased from 30 to 0
Turn Double Play decreased from 35 to 30
Movement Potential decreased from 55 to 50
Movement decreased from 55 to 45
Movement vs R decreased from 55 to 45
Movement vs L decreased from 50 to 45
Control Potential decreased from 75 to 70
Control increased from 60 to 65
Control vs R decreased from 75 to 70
Control vs L decreased from 70 to 65
Fastball Pot increased from 60 to 65
Fastball increased from 60 to 65
Curveball Pot increased from 40 to 50
Curveball increased from 40 to 45
Slider Pot increased from 45 to 55
Slider increased from 45 to 55
2009-11-03
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 increased from 50 to 55
GB% increased from 58% to 60%
2009-09-07
Stealing decreased from 25 to 20
Stuff vs R decreased from 55 to 50
Movement decreased from 55 to 50
GB% decreased from 59% to 58%
2009-07-13
Avoid Ks Potential decreased from 35 to 30
Avoid Ks decreased from 35 to 30
Avoid Ks vs R decreased from 35 to 30
Avoid Ks vs L decreased from 35 to 30
Stealing increased from 20 to 25
Stuff vs R increased from 50 to 55
Movement Potential increased from 50 to 55
Movement increased from 50 to 55
Movement vs R increased from 50 to 55
Control vs L increased from 65 to 70
GB% increased from 58% to 59%
Stamina increased from 55 to 60
2009-04-20
Avoid Ks Potential decreased from 45 to 35
Avoid Ks decreased from 45 to 35
Avoid Ks vs R decreased from 45 to 35
Avoid Ks vs L decreased from 45 to 35
Stuff vs R decreased from 55 to 50
Movement vs R decreased from 55 to 50
Control vs R increased from 70 to 75
Role changed from RP to CL
2008-10-25
Avoid Ks Potential increased from 40 to 45
Avoid Ks increased from 40 to 45
Avoid Ks vs R increased from 40 to 45
Avoid Ks vs L increased from 40 to 45
Stuff Potential decreased from 55 to 50
Stuff decreased from 55 to 50
2008-09-22
Stealing decreased from 25 to 20
Stuff Potential increased from 50 to 55
Stuff increased from 50 to 55
Stuff vs R increased from 50 to 55
Stuff vs L increased from 45 to 50
Role changed from SP to RP
2008-08-25
Stuff vs R decreased from 55 to 50
Stuff vs L decreased from 50 to 45
Movement vs R increased from 50 to 55
GB% increased from 56% to 58%
Role changed from RP to SP
2008-06-16
Eye increased from 30 to 35
Eye vs R increased from 30 to 35
Eye vs L increased from 30 to 35
Avoid Ks Potential decreased from 55 to 40
Avoid Ks decreased from 55 to 40
Avoid Ks vs R decreased from 55 to 40
Avoid Ks vs L decreased from 55 to 40
Stuff Potential decreased from 55 to 50
Stuff decreased from 55 to 50
Stuff vs L decreased from 55 to 50
Movement vs L increased from 45 to 50
Control vs R decreased from 75 to 70
GB% increased from 50% to 56%
Curveball Pot decreased from 45 to 40
Changeup Pot decreased from 55 to 50
2008-04-07
Stuff Potential increased from 50 to 55
Stuff increased from 50 to 55
Stuff vs R increased from 50 to 55
Stuff vs L increased from 50 to 55
Movement vs L decreased from 50 to 45
Role changed from SP to RP
2008-03-17
Eye decreased from 35 to 30
Eye vs R decreased from 35 to 30
Eye vs L decreased from 35 to 30
Movement Potential increased from 30 to 50
Movement increased from 30 to 50
Movement vs R increased from 35 to 50
Movement vs L increased from 30 to 50
2008-01-01
Eye increased from 30 to 35
Eye vs R increased from 30 to 35
Eye vs L increased from 30 to 35
Avoid Ks Potential increased from 50 to 55
Avoid Ks increased from 50 to 55
Avoid Ks vs R increased from 50 to 55
Avoid Ks vs L increased from 50 to 55
Stuff Potential decreased from 55 to 50
Stuff decreased from 55 to 50
Stuff vs R decreased from 55 to 50
Stuff vs L decreased from 55 to 50
Role changed from RP to SP
2007-07-01
Eye Potential increased from 30 to 35
Avoid Ks Potential decreased from 55 to 50
Avoid Ks decreased from 55 to 50
Avoid Ks vs R decreased from 55 to 50
Avoid Ks vs L decreased from 55 to 50
Control vs L decreased from 70 to 65
GB% increased from 48% to 50%
2007-01-01
Eye Potential decreased from 35 to 30
Avoid Ks Potential increased from 50 to 55
Avoid Ks increased from 50 to 55
Avoid Ks vs R increased from 50 to 55
Avoid Ks vs L increased from 50 to 55
Local Popularity increased from Unknown to Very Popular
National Popularity increased from Unknown to Very Popular
2006-07-01
Avoid Ks vs L decreased from 55 to 50
P defense increased from 40 to 45
Stuff Potential increased from 50 to 55
Stuff increased from 50 to 55
Stuff vs R increased from 50 to 55
Stuff vs L increased from 45 to 55
Movement Potential decreased from 35 to 30
Movement decreased from 35 to 30
Movement vs L decreased from 35 to 30
Control vs R increased from 70 to 75
Control vs L increased from 65 to 70
GB% increased from 47% to 48%
Curveball decreased from 45 to 40
Changeup decreased from 55 to 50
Role changed from SP to RP
2006-01-01
Avoid Ks vs L increased from 50 to 55
Speed increased from 20 to 25
P defense decreased from 45 to 40
Movement increased from 30 to 35
Movement vs L increased from 30 to 35
Velocity increased from 94-96 mph to 95-97 mph
Weight increased from 187 to 188
Local Popularity decreased from Fair to Unknown
2005-07-01
Eye Potential increased from 30 to 35
Eye increased from 25 to 30
Eye vs R increased from 25 to 30
Eye vs L increased from 25 to 30
Avoid Ks Potential decreased from 55 to 50
Avoid Ks decreased from 55 to 50
Avoid Ks vs R decreased from 55 to 50
Avoid Ks vs L decreased from 55 to 50
Sac Bunt decreased from 40 to 35
Stealing increased from 20 to 25
Movement Potential increased from 30 to 35
Movement vs R increased from 30 to 35
GB% increased from 43% to 47%
Weight increased from 186 to 187
2005-01-01
Gap increased from 20 to 25
Gap vs R increased from 20 to 25
Gap vs L increased from 20 to 25
Avoid Ks Potential increased from 50 to 55
Avoid Ks increased from 50 to 55
Avoid Ks vs R increased from 50 to 55
Avoid Ks vs L increased from 50 to 55
Stealing decreased from 25 to 20
Weight increased from 185 to 186
2004-07-01
Eye Potential decreased from 35 to 30
Avoid Ks vs L decreased from 55 to 50
Speed decreased from 25 to 20
Stuff vs L decreased from 50 to 45
Movement Potential decreased from 35 to 30
Movement decreased from 35 to 30
Movement vs R decreased from 35 to 30
Control decreased from 65 to 60
Control vs R increased from 65 to 70
Control vs L increased from 60 to 65
Velocity increased from 93-95 mph to 94-96 mph
GB% increased from 42% to 43%
Fastball Pot increased from 55 to 60
Fastball increased from 55 to 60
Curveball increased from 40 to 45
Weight decreased from 187 to 185
2004-01-01
Gap Potential increased from 20 to 25
Avoid Ks vs L increased from 50 to 55
Speed increased from 20 to 25
Stuff vs L increased from 45 to 50
Movement Potential increased from 30 to 35
Movement increased from 30 to 35
Movement vs R increased from 30 to 35
Control increased from 60 to 65
Control vs R increased from 60 to 65
Control vs L increased from 55 to 60
Velocity increased from 92-94 mph to 93-95 mph
GB% decreased from 46% to 42%
Curveball Pot increased from 40 to 45
Local Popularity decreased from Well Known to Fair
2003-07-01
Gap Potential decreased from 25 to 20
Power Potential decreased from 35 to 30
Eye increased from 20 to 25
Eye vs R increased from 20 to 25
Eye vs L increased from 20 to 25
P defense increased from 40 to 45
Stuff increased from 45 to 50
Stuff vs R increased from 45 to 50
Movement Potential decreased from 35 to 30
Movement vs R decreased from 35 to 30
Control Potential decreased from 80 to 75
Control vs R decreased from 65 to 60
Control vs L decreased from 60 to 55
Velocity increased from 89-91 mph to 92-94 mph
Fastball Pot increased from 50 to 55
Fastball increased from 50 to 55
Curveball Pot decreased from 45 to 40
Slider Pot increased from 40 to 45
Slider increased from 40 to 45
Changeup Pot decreased from 60 to 55
Weight increased from 186 to 187
Local Popularity increased from Unknown to Well Known
2002-07-01
Avoid Ks Potential decreased from 55 to 50
Avoid Ks decreased from 55 to 50
Avoid Ks vs R decreased from 55 to 50
Avoid Ks vs L decreased from 55 to 50
Movement decreased from 35 to 30
Movement vs L decreased from 35 to 30
Weight increased from 185 to 186