Roger Clemens vs Mike Mussina: Career Stats Comparison
Roger Clemens has the better career line of the two, leading 10 of the 11 statistical categories compared on this page. Roger Clemens played 1984–2007 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
Roger Clemens (1984–2007) and Mike Mussina (1991–2008) — breaking in during the 1980s and the 1990s respectively, so they pitched against very different hitting environments. Roger Clemens compiled 354 wins and 4,672 strikeouts; Mike Mussina put up 270 wins and 2,813 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Roger Clemens, with 3.12 to Mike Mussina's 3.68.
- Who won more games? Roger Clemens, with 354 to Mike Mussina's 270.
- Who recorded more strikeouts? Roger Clemens, with 4,672 to Mike Mussina's 2,813.
- Who had the better WHIP? Roger Clemens, with 1.17 to Mike Mussina's 1.19.
- Who pitched more innings? Roger Clemens, with 4,916 to Mike Mussina's 3,562.
- Who threw more shutouts? Roger Clemens, with 46 to Mike Mussina's 23.
- Who has the higher career Pitcher PIV? Roger Clemens, with 146,187 career Pitcher PIV to Mike Mussina's 76,572.
Roger Clemens
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. Totals where fewer is not an achievement -- losses, walks and hits allowed -- are left unmarked, because they track how long someone pitched rather than how well. Rate stats are not era-adjusted: compare them with the era in mind, or use the PIV card below, which is.
| Statistic | Roger Clemens | Mike Mussina |
|---|---|---|
| Wins | Leads: 354 | 270 |
| Losses | 184 | 153 |
| Games | Leads: 709 | 537 |
| Games Started | Leads: 707 | 536 |
| Complete Games | Leads: 118 | 57 |
| Shutouts | Leads: 46 | 23 |
| Saves | 0 | 0 |
| Strikeouts | Leads: 4,672 | 2,813 |
| Walks | 1,580 | 785 |
| Hits Allowed | 4,185 | 3,460 |
| Home Runs Allowed | 363 | 376 |
| Innings Pitched | Leads: 4,916 | 3,562 |
| ERA | Leads: 3.12 | 3.68 |
| WHIP | Leads: 1.17 | 1.19 |
| K/9 | Leads: 8.55 | 7.11 |
| BB/9 | 2.89 | Leads: 1.98 |
PIV Comparison
By PIV (Player Impact Value), Roger Clemens outpaces Mike Mussina 146,187 to 76,572 — a gap driven primarily by per-season impact (6,091 vs 4,254 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).
Roger Clemens — top 3 seasons by ERA (lower is better)
Mike Mussina — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Roger Clemens leads in wins, strikeouts, ERA, and WHIP, while Mike Mussina owns no headline categories. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Roger Clemens. PIV agrees: Roger Clemens grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
Roger Clemens vs Mike Mussina: Frequently Asked Questions
- Who was better, Roger Clemens or Mike Mussina?
- By the career statistics compared on this page, Roger Clemens leads Mike Mussina in 10 of 11 categories.
- Who had the better ERA?
- Roger Clemens, with 3.12 to Mike Mussina's 3.68.
- Who won more games?
- Roger Clemens, with 354 to Mike Mussina's 270.
- Who recorded more strikeouts?
- Roger Clemens, with 4,672 to Mike Mussina's 2,813.
- Who had the better WHIP?
- Roger Clemens, with 1.17 to Mike Mussina's 1.19.