Mike Mussina vs Roy Oswalt: Career Stats Comparison
Mike Mussina (1991–2008) and Roy Oswalt (2001–2013) — breaking in during the 1990s and the 2000s respectively, so they pitched against very different hitting environments. Mike Mussina compiled 270 wins and 2,813 strikeouts; Roy Oswalt put up 163 wins and 1,852 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Mike Mussina
Roy Oswalt
Career Stats Side-by-Side
Every cell below is a career total or career rate. Cells highlighted in green mark the player who leads that line. For pitchers, lower ERA, WHIP, and BB/9 lead; higher K/9 leads.
| Statistic | Mike Mussina | Roy Oswalt |
|---|---|---|
| Wins | 270 | 163 |
| Losses | 153 | 102 |
| Games | 537 | 365 |
| Games Started | 536 | 341 |
| Complete Games | 57 | 20 |
| Shutouts | 23 | 8 |
| Saves | 0 | 0 |
| Strikeouts | 2,813 | 1,852 |
| Walks | 785 | 520 |
| Hits Allowed | 3,460 | 2,199 |
| Home Runs Allowed | 376 | 197 |
| Innings Pitched | 3,562 | 2,245 |
| ERA | 3.68 | 3.36 |
| WHIP | 1.19 | 1.21 |
| K/9 | 7.11 | 7.42 |
| BB/9 | 1.98 | 2.08 |
PIV Comparison
By PIV (Player Impact Value), Mike Mussina outpaces Roy Oswalt 76,572 to 55,095 — a gap driven primarily by per-season impact (4,254 vs 3,935 per year). PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.
Peak Seasons
The best single seasons each player produced, ranked by ERA among qualified workloads (120+ innings).
Mike Mussina — top 3 seasons by ERA (lower is better)
Roy Oswalt — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Mike Mussina leads in wins, strikeouts, WHIP, and innings pitched, while Roy Oswalt owns ERA and K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Mike Mussina. PIV agrees: Mike Mussina grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.