ERA

Isaiah Campbell · Season-by-season history

ERA over time

Isaiah Campbell — 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 3.24 6.48 9.72 12.96 16.2 2023 2024 2025 2023 · Seattle Mariners · MLB: 2.83 2024 · Boston Red Sox · MLB: 16.20 2025 · Boston Red Sox · MLB: 7.04
  • Seattle Mariners · MLB
  • Boston Red 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.

Isaiah Campbell — ERA by season
SeasonTeamLeagueERA
2025 Boston Red Sox MLB 7.04
2024 Boston Red Sox MLB 16.20
2023 Seattle Mariners MLB 2.83