Walter Johnson vs Mike Mussina: Career Stats Comparison
Walter Johnson has the better career line of the two, leading 10 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Walter Johnson played 1907–1927 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
Walter Johnson (1907–1927) and Mike Mussina (1991–2008) — breaking in during the 1900s and the 1990s respectively, so they pitched against very different hitting environments. Walter Johnson finished with 417 wins and 3,509 strikeouts; Mike Mussina finished with 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? Walter Johnson, with 2.17 to Mike Mussina's 3.68.
- Who won more games? Walter Johnson, with 417 to Mike Mussina's 270.
- Who recorded more strikeouts? Walter Johnson, with 3,509 to Mike Mussina's 2,813.
- Who had the better WHIP? Walter Johnson, with 1.06 to Mike Mussina's 1.19.
- Who pitched more innings? Walter Johnson, with 5,914.2 to Mike Mussina's 3,562.2.
- Who threw more shutouts? Walter Johnson, with 110 to Mike Mussina's 23.
- Who has the higher career Pitcher PIV? Walter Johnson, with 124,021 career Pitcher PIV to Mike Mussina's 76,572.
Walter Johnson
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. 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 1900s and the 1990s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Walter Johnson | Mike Mussina |
|---|---|---|
| Wins | Leads: 417 | 270 |
| Losses not scored | 279 | 153 |
| Games | Leads: 802 | 537 |
| Games Started | Leads: 666 | 536 |
| Complete Games | Leads: 531 | 57 |
| Shutouts | Leads: 110 | 23 |
| Saves | Leads: 34 | 0 |
| Strikeouts | Leads: 3,509 | 2,813 |
| Walks not scored | 1,363 | 785 |
| Hits Allowed not scored | 4,913 | 3,460 |
| Home Runs Allowed not scored | 97 | 376 |
| Innings Pitched | Leads: 5,914.2 | 3,562.2 |
| ERA | Leads: 2.17 | 3.68 |
| WHIP | Leads: 1.06 | 1.19 |
| K/9 | 5.34 | Leads: 7.11 |
| BB/9 | 2.07 | Leads: 1.98 |
PIV Comparison through 2025
By PIV (Player Impact Value), Walter Johnson outpaces Mike Mussina 124,021 to 76,572 — driven by both sides of the ledger: 5,906 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.
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).
Walter Johnson — 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, Walter Johnson leads in wins, strikeouts, ERA, and WHIP, while Mike Mussina owns K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Walter Johnson. PIV agrees: Walter Johnson grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Walter Johnson and Mike Mussina careers compare
Walter Johnson (1907–1927) was finished before Mike Mussina (1991–2008) arrived, so they never shared a league. The two careers are close in length, 802 games for Walter Johnson and 537 for Mike Mussina across 21 and 18 PIV seasons, so the totals compare on fairly even terms. Mike Mussina's edges on the table are strikeouts per nine (7.11 to 5.34) and walks per nine (1.98 to 2.07). The per-nine rows read 5.34 strikeouts and 2.07 walks for Walter Johnson, 7.11 and 1.98 for Mike Mussina. Walter Johnson was mainly a starter (666 starts in 802 games), and Mike Mussina was mainly a starter (536 starts in 537 games).
Walter Johnson vs Mike Mussina: Frequently Asked Questions
- Who was better, Walter Johnson or Mike Mussina?
- By the career statistics compared on this page, Walter Johnson leads Mike Mussina in 10 of the 12 scored categories.
- Who had the better ERA?
- Walter Johnson, with 2.17 to Mike Mussina's 3.68.
- Who won more games?
- Walter Johnson, with 417 to Mike Mussina's 270.
- Who recorded more strikeouts?
- Walter Johnson, with 3,509 to Mike Mussina's 2,813.
- Who had the better WHIP?
- Walter Johnson, with 1.06 to Mike Mussina's 1.19.