BB9

Michael Wacha · Season-by-season history

BB9 over time

Michael Wacha — BB9 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 0.48 0.96 1.44 1.92 2.4 2021 2022 2024 2025 2021 · Tampa Bay Rays · MLB: 2.2 2022 · Boston Red Sox · MLB: 2.2 2024 · Kansas City Royals · MLB: 2.4 2025 · Kansas City Royals · MLB: 2.3
  • Tampa Bay Rays · MLB
  • Boston Red Sox · MLB
  • Kansas City Royals · MLB

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

Michael Wacha — BB9 by season
SeasonTeamLeagueBB9
2025 Kansas City Royals MLB 2.3
2024 Kansas City Royals MLB 2.4
2022 Boston Red Sox MLB 2.2
2021 Tampa Bay Rays MLB 2.2