ERA+

John Koronka · Season-by-season history

ERA+ over time

John Koronka — 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 16.2 32.4 48.6 64.8 81 2006 2007 2006 · Texas Rangers · MLB: 81 2007 · Texas Rangers · MLB: 60
  • Texas Rangers · MLB

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

John Koronka — ERA+ by season
SeasonTeamLeagueERA+
2007 Texas Rangers MLB 60
2006 Texas Rangers MLB 81