ERA+

Kyle Harrison · Season-by-season history

ERA+ over time

Kyle Harrison — ERA+ over time Each point is a recorded season value. Separate lines show each team and competition. Exact values are listed in the table below. 0 28.2 56.4 84.6 112.8 141 2025 2025 · Boston Red Sox · MLB: 141
  • Boston Red Sox · MLB

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

Kyle Harrison — ERA+ by season
SeasonTeamLeagueERA+
2025 Boston Red Sox MLB 141