ERA

Justin Slaten · Season-by-season history

ERA over time

Justin Slaten — 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 0.85 1.7 2.54 3.39 4.24 2024 2025 2024 · Boston Red Sox · MLB: 2.93 2025 · Boston Red Sox · MLB: 4.24
  • 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.

Justin Slaten — ERA by season
SeasonTeamLeagueERA
2025 Boston Red Sox MLB 4.24
2024 Boston Red Sox MLB 2.93