ERA+

Mike Jackson · Season-by-season history

ERA+ over time

Mike Jackson — ERA+ over time Each bar is a recorded season value, grouped by season and coloured by team and competition. Bars extend from zero. Exact values are listed in the table below. 0 61.8 123.6 185.4 247.2 309 1990 1991 1996 1997 1998 1999 2002 2004 1990 · Seattle Mariners · MLB: 87 1991 · Seattle Mariners · MLB: 127 1996 · Seattle Mariners · MLB: 137 1997 · Cleveland Guardians · MLB: 145 1998 · Cleveland Guardians · MLB: 309 1999 · Cleveland Guardians · MLB: 123 2002 · Minnesota Twins · MLB: 137 2004 · Chicago White Sox · MLB: 94
  • Seattle Mariners · MLB
  • Cleveland Guardians · MLB
  • Minnesota Twins · MLB
  • Chicago White Sox · MLB

Hover over a bar for its value. Only numeric values with a recorded season are charted; missing seasons are not treated as zero.

Mike Jackson — ERA+ by season
SeasonTeamLeagueERA+
2004 Chicago White Sox MLB 94
2002 Minnesota Twins MLB 137
1999 Cleveland Guardians MLB 123
1998 Cleveland Guardians MLB 309
1997 Cleveland Guardians MLB 145
1996 Seattle Mariners MLB 137
1991 Seattle Mariners MLB 127
1990 Seattle Mariners MLB 87