Roy Halladay vs Mike Mussina: Career Stats Comparison
Roy Halladay and Mike Mussina are close to even, splitting the 8 scored categories on this page 4–4 (8 further counting totals are shown but not scored). Roy Halladay played 1998–2013 as a pitcher; Mike Mussina played 1991–2008 as a pitcher.
- ERA (Earned Run Average):
- Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
- W (Wins):
- Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
- SO (Strikeouts):
- For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
- WHIP (Walks and Hits per Inning Pitched):
- Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.
Data updated
Roy Halladay (1998–2013) and Mike Mussina (1991–2008) — both debuted in the 1990s. Roy Halladay finished with 203 wins and 2,117 strikeouts; Mike Mussina finished with 270 wins and 2,813 strikeouts. The table below sets out their careers line by line.
Quick answer
- Who leads the career comparison? Neither — they split the 8 scored categories 4–4.
- Who had the better ERA? Roy Halladay, with 3.38 to Mike Mussina's 3.68.
- Who won more games? Mike Mussina, with 270 to Roy Halladay's 203.
- Who recorded more strikeouts? Mike Mussina, with 2,813 to Roy Halladay's 2,117.
- Who had the better WHIP? Roy Halladay, with 1.18 to Mike Mussina's 1.19.
- How many innings did each pitch? Roy Halladay 2,749.1, Mike Mussina 3,562.2.
- Who threw more shutouts? Mike Mussina, with 23 to Roy Halladay's 20.
Roy Halladay
Mike Mussina
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. Lower ERA, WHIP and BB/9 lead; higher K/9 leads. 8 of the 16 lines below are scored; the other 8 are shown but not scored. Games, starts and innings measure playing time, and losses, walks and hits allowed track how long someone pitched, so they are left unmarked, as is any line where both players are at zero. Rate stats are not era-adjusted, so read them against the run environment each player worked in, or use the PIV card below, which is adjusted.
| Statistic | Roy Halladay | Mike Mussina |
|---|---|---|
| Wins | 203 | Leads: 270 |
| Losses not scored | 105 | 153 |
| Games not scored | 416 | 537 |
| Games Started not scored | 390 | 536 |
| Complete Games | Leads: 67 | 57 |
| Shutouts | 20 | Leads: 23 |
| Saves not scored | 1 | 0 |
| Strikeouts | 2,117 | Leads: 2,813 |
| Walks not scored | 592 | 785 |
| Hits Allowed not scored | 2,646 | 3,460 |
| Home Runs Allowed not scored | 236 | 376 |
| Innings Pitched not scored | 2,749.1 | 3,562.2 |
| ERA | Leads: 3.38 | 3.68 |
| WHIP | Leads: 1.18 | 1.19 |
| K/9 | 6.93 | Leads: 7.11 |
| BB/9 | Leads: 1.94 | 1.98 |
PIV Comparison
By PIV (Player Impact Value), Mike Mussina leads Roy Halladay 76,572 to 66,478 — driven by both sides of the ledger: 4,254 PIV per season to 4,155, across 18 seasons to 16. 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).
Roy Halladay — top 3 seasons by ERA (lower is better)
Mike Mussina — top 3 seasons by ERA (lower is better)
Verdict
Roy Halladay and Mike Mussina split the 8 scored categories on the head-to-head card 4-4. On the raw scoreboard neither has the edge. PIV, which is era-adjusted, grades Mike Mussina higher. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Roy Halladay and Mike Mussina careers compare
Roy Halladay and Mike Mussina were active at the same time between 1998 and 2008. The two careers are close in length, 416 games for Roy Halladay and 537 for Mike Mussina across 16 and 18 PIV seasons, so the totals compare on fairly even terms. The green cells for Mike Mussina are wins (270 to 203), shutouts (23 to 20), and strikeouts (2,813 to 2,117). The per-nine rows read 6.93 strikeouts and 1.94 walks for Roy Halladay, 7.11 and 1.98 for Mike Mussina. Roy Halladay was mainly a starter (390 starts in 416 games), and Mike Mussina was mainly a starter (536 starts in 537 games).
Roy Halladay vs Mike Mussina: Frequently Asked Questions
- Who was better, Roy Halladay or Mike Mussina?
- By the career statistics compared on this page, neither leads: they split the 8 scored categories 4–4.
- Who had the better ERA?
- Roy Halladay, with 3.38 to Mike Mussina's 3.68.
- Who won more games?
- Mike Mussina, with 270 to Roy Halladay's 203.
- Who recorded more strikeouts?
- Mike Mussina, with 2,813 to Roy Halladay's 2,117.
- Who had the better WHIP?
- Roy Halladay, with 1.18 to Mike Mussina's 1.19.