Bob Gibson vs Warren Spahn: Career Stats Comparison
Warren Spahn 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). Bob Gibson played 1959–1975 as a pitcher; Warren Spahn played 1942–1965 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
Bob Gibson (1959–1975) and Warren Spahn (1942–1965) — breaking in during the 1950s and the 1940s respectively, so they pitched against very different hitting environments. Bob Gibson finished with 251 wins and 3,117 strikeouts; Warren Spahn finished with 363 wins and 2,583 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Bob Gibson, with 2.91 to Warren Spahn's 3.09.
- Who won more games? Warren Spahn, with 363 to Bob Gibson's 251.
- Who recorded more strikeouts? Bob Gibson, with 3,117 to Warren Spahn's 2,583.
- Who had the better WHIP? Neither — both are at 1.19.
- Who pitched more innings? Warren Spahn, with 5,243.2 to Bob Gibson's 3,884.1.
- Who threw more shutouts? Warren Spahn, with 63 to Bob Gibson's 56.
- Who has the higher career Pitcher PIV? Bob Gibson, with 69,720 career Pitcher PIV to Warren Spahn's 63,558.
Bob Gibson
Warren Spahn
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 1950s and the 1940s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Bob Gibson | Warren Spahn |
|---|---|---|
| Wins | 251 | Leads: 363 |
| Losses not scored | 174 | 245 |
| Games | 528 | Leads: 750 |
| Games Started | 482 | Leads: 665 |
| Complete Games | 255 | Leads: 382 |
| Shutouts | 56 | Leads: 63 |
| Saves | 6 | Leads: 29 |
| Strikeouts | Leads: 3,117 | 2,583 |
| Walks not scored | 1,336 | 1,434 |
| Hits Allowed not scored | 3,279 | 4,830 |
| Home Runs Allowed not scored | 257 | 434 |
| Innings Pitched | 3,884.1 | Leads: 5,243.2 |
| ERA | Leads: 2.91 | 3.09 |
| WHIP | Leads: 1.19 | 1.19 |
| K/9 | Leads: 7.22 | 4.43 |
| BB/9 | 3.10 | Leads: 2.46 |
PIV Comparison through 2025
By PIV (Player Impact Value), Bob Gibson leads Warren Spahn 69,720 to 63,558 — driven by per-season impact — 4,101 PIV per season to 2,889 — rather than by longevity, since Bob Gibson played 17 seasons to Warren Spahn's 22. 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).
Bob Gibson — top 3 seasons by ERA (lower is better)
Warren Spahn — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Bob Gibson leads in strikeouts, ERA, WHIP, and K/9, while Warren Spahn owns wins and innings pitched. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Bob Gibson. PIV agrees: Bob Gibson grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Bob Gibson and Warren Spahn careers compare
The careers of Bob Gibson (1959–1975) and Warren Spahn (1942–1965) overlapped from 1959 to 1965, so for those seasons they faced the same league conditions. With 528 games against 750 across 17 and 22 PIV seasons, neither player's totals owe much to extra seasons. Where Bob Gibson comes out ahead, it is in strikeouts (3,117 to 2,583), ERA (2.91 to 3.09), and WHIP (1.19 to 1.19). The per-nine rows read 7.22 strikeouts and 3.10 walks for Bob Gibson, 4.43 and 2.46 for Warren Spahn. Both had the same role: Bob Gibson was mainly a starter (482 starts in 528 games); Warren Spahn was mainly a starter (665 starts in 750 games).
Bob Gibson vs Warren Spahn: Frequently Asked Questions
- Who was better, Bob Gibson or Warren Spahn?
- By the career statistics compared on this page, Warren Spahn leads Bob Gibson in 8 of the 12 scored categories.
- Who had the better ERA?
- Bob Gibson, with 2.91 to Warren Spahn's 3.09.
- Who won more games?
- Warren Spahn, with 363 to Bob Gibson's 251.
- Who recorded more strikeouts?
- Bob Gibson, with 3,117 to Warren Spahn's 2,583.
- Who had the better WHIP?
- Neither — both are at 1.19.