Mike Mussina vs John Smoltz: Career Stats Comparison
Mike Mussina and John Smoltz are close to even, splitting the 8 scored categories on this page 4–4 (8 further counting totals are shown but not scored). Mike Mussina played 1991–2008 as a pitcher; John Smoltz played 1988–2009 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
Mike Mussina (1991–2008) and John Smoltz (1988–2009) — they debuted in the 1990s and the 1980s respectively and share 18 seasons. Mike Mussina finished with 270 wins and 2,813 strikeouts; John Smoltz finished with 213 wins and 3,084 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? John Smoltz, with 3.33 to Mike Mussina's 3.68.
- Who won more games? Mike Mussina, with 270 to John Smoltz's 213.
- Who recorded more strikeouts? John Smoltz, with 3,084 to Mike Mussina's 2,813.
- Who had the better WHIP? John Smoltz, with 1.18 to Mike Mussina's 1.19.
- How many innings did each pitch? Mike Mussina 3,562.2, John Smoltz 3,473.0.
- Who threw more shutouts? Mike Mussina, with 23 to John Smoltz's 16.
Mike Mussina
John Smoltz
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 | Mike Mussina | John Smoltz |
|---|---|---|
| Wins | Leads: 270 | 213 |
| Losses not scored | 153 | 155 |
| Games not scored | 537 | 723 |
| Games Started not scored | 536 | 481 |
| Complete Games | Leads: 57 | 53 |
| Shutouts | Leads: 23 | 16 |
| Saves not scored | 0 | 154 |
| Strikeouts | 2,813 | Leads: 3,084 |
| Walks not scored | 785 | 1,010 |
| Hits Allowed not scored | 3,460 | 3,074 |
| Home Runs Allowed not scored | 376 | 288 |
| Innings Pitched not scored | 3,562.2 | 3,473.0 |
| ERA | 3.68 | Leads: 3.33 |
| WHIP | 1.19 | Leads: 1.18 |
| K/9 | 7.11 | Leads: 7.99 |
| BB/9 | Leads: 1.98 | 2.62 |
PIV Comparison
By PIV (Player Impact Value), John Smoltz leads Mike Mussina 91,907 to 76,572 — driven by both sides of the ledger: 4,376 PIV per season to 4,254, across 21 seasons to 18. 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)
John Smoltz — top 3 seasons by ERA (lower is better)
Verdict
Mike Mussina and John Smoltz 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 John Smoltz higher. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Mike Mussina and John Smoltz careers compare
From 1991 through 2008, Mike Mussina and John Smoltz were in the majors together. The two careers are close in length, 537 games for Mike Mussina and 723 for John Smoltz across 18 and 21 PIV seasons, so the totals compare on fairly even terms. Where John Smoltz comes out ahead, it is in strikeouts (3,084 to 2,813), ERA (3.33 to 3.68), and WHIP (1.18 to 1.19). By rate, Mike Mussina struck out 7.11 and walked 1.98 per nine innings; John Smoltz struck out 7.99 and walked 2.62. Mike Mussina was mainly a starter (536 starts in 537 games), while John Smoltz split time between starting and relief (481 starts in 723 games).
Mike Mussina vs John Smoltz: Frequently Asked Questions
- Who was better, Mike Mussina or John Smoltz?
- By the career statistics compared on this page, neither leads: they split the 8 scored categories 4–4.
- Who had the better ERA?
- John Smoltz, with 3.33 to Mike Mussina's 3.68.
- Who won more games?
- Mike Mussina, with 270 to John Smoltz's 213.
- Who recorded more strikeouts?
- John Smoltz, with 3,084 to Mike Mussina's 2,813.
- Who had the better WHIP?
- John Smoltz, with 1.18 to Mike Mussina's 1.19.