Mike Mussina vs Fernando Valenzuela: Career Stats Comparison
Mike Mussina has the better career line of the two, leading 8 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Mike Mussina played 1991–2008 as a pitcher; Fernando Valenzuela played 1980–1997 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 Fernando Valenzuela (1980–1997) — breaking in during the 1990s and the 1980s respectively, so they pitched against very different hitting environments. Mike Mussina finished with 270 wins and 2,813 strikeouts; Fernando Valenzuela finished with 173 wins and 2,074 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Fernando Valenzuela, with 3.54 to Mike Mussina's 3.68.
- Who won more games? Mike Mussina, with 270 to Fernando Valenzuela's 173.
- Who recorded more strikeouts? Mike Mussina, with 2,813 to Fernando Valenzuela's 2,074.
- Who had the better WHIP? Mike Mussina, with 1.19 to Fernando Valenzuela's 1.32.
- Who pitched more innings? Mike Mussina, with 3,562.2 to Fernando Valenzuela's 2,930.0.
- Who threw more shutouts? Fernando Valenzuela, with 31 to Mike Mussina's 23.
- Who has the higher career Pitcher PIV? Mike Mussina, with 76,572 career Pitcher PIV to Fernando Valenzuela's 30,102.
Mike Mussina
Fernando Valenzuela
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. 12 of the 16 lines below are scored; the other 4 are counting totals on which fewer is not an achievement, so no one is awarded them. 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, and the 1990s and the 1980s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Mike Mussina | Fernando Valenzuela |
|---|---|---|
| Wins | Leads: 270 | 173 |
| Losses not scored | 153 | 153 |
| Games | Leads: 537 | 453 |
| Games Started | Leads: 536 | 424 |
| Complete Games | 57 | Leads: 113 |
| Shutouts | 23 | Leads: 31 |
| Saves | 0 | Leads: 2 |
| Strikeouts | Leads: 2,813 | 2,074 |
| Walks not scored | 785 | 1,151 |
| Hits Allowed not scored | 3,460 | 2,718 |
| Home Runs Allowed not scored | 376 | 226 |
| Innings Pitched | Leads: 3,562.2 | 2,930.0 |
| ERA | 3.68 | Leads: 3.54 |
| WHIP | Leads: 1.19 | 1.32 |
| K/9 | Leads: 7.11 | 6.37 |
| BB/9 | Leads: 1.98 | 3.54 |
PIV Comparison through 2025
By PIV (Player Impact Value), Mike Mussina outpaces Fernando Valenzuela 76,572 to 30,102 — driven by per-season impact — 4,254 PIV per season to 1,672 — rather than by longevity, since Mike Mussina played 18 seasons to Fernando Valenzuela's 18. PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.
PIV is computed through the 2025 season. The career totals on this page include 2026 to date, so PIV does not yet reflect the 2026 season.
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)
Fernando Valenzuela — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Mike Mussina leads in wins, strikeouts, WHIP, and K/9, while Fernando Valenzuela owns ERA. 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.
Related Matchups
How the Mike Mussina and Fernando Valenzuela careers compare
From 1991 through 1997, Mike Mussina and Fernando Valenzuela were in the majors together. The two careers are close in length, 537 games for Mike Mussina and 453 for Fernando Valenzuela across 18 and 18 PIV seasons, so the totals compare on fairly even terms. Fernando Valenzuela's edges on the table are complete games (113 to 57), shutouts (31 to 23), and saves (2 to 0). The per-nine rows read 7.11 strikeouts and 1.98 walks for Mike Mussina, 6.37 and 3.54 for Fernando Valenzuela. Mike Mussina was mainly a starter (536 starts in 537 games), and Fernando Valenzuela was mainly a starter (424 starts in 453 games).
Mike Mussina vs Fernando Valenzuela: Frequently Asked Questions
- Who was better, Mike Mussina or Fernando Valenzuela?
- By the career statistics compared on this page, Mike Mussina leads Fernando Valenzuela in 8 of the 12 scored categories.
- Who had the better ERA?
- Fernando Valenzuela, with 3.54 to Mike Mussina's 3.68.
- Who won more games?
- Mike Mussina, with 270 to Fernando Valenzuela's 173.
- Who recorded more strikeouts?
- Mike Mussina, with 2,813 to Fernando Valenzuela's 2,074.
- Who had the better WHIP?
- Mike Mussina, with 1.19 to Fernando Valenzuela's 1.32.