ERA

Mason Miller · Season-by-season history

ERA over time

Mason Miller — 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 0.76 1.51 2.27 3.02 3.78 2023 2024 2025 2023 · Athletics · MLB: 3.78 2024 · Athletics · MLB: 2.49 2025 · Athletics · MLB: 3.76
  • Athletics · MLB

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

Mason Miller — ERA by season
SeasonTeamLeagueERA
2025 Athletics MLB 3.76
2024 Athletics MLB 2.49
2023 Athletics MLB 3.78