Bob Gibson vs Harvey Haddix: Career Stats Comparison
Bob Gibson 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). Bob Gibson played 1959–1975 as a pitcher; Harvey Haddix played 1952–1965 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 Harvey Haddix (1952–1965) — both came up during the 1950s, so the matchup is a direct one. Bob Gibson finished with 251 wins and 3,117 strikeouts; Harvey Haddix finished with 136 wins and 1,575 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 Harvey Haddix's 3.63.
- Who won more games? Bob Gibson, with 251 to Harvey Haddix's 136.
- Who recorded more strikeouts? Bob Gibson, with 3,117 to Harvey Haddix's 1,575.
- Who had the better WHIP? Bob Gibson, with 1.19 to Harvey Haddix's 1.23.
- Who pitched more innings? Bob Gibson, with 3,884.1 to Harvey Haddix's 2,235.0.
- Who threw more shutouts? Bob Gibson, with 56 to Harvey Haddix's 20.
- Who has the higher career Pitcher PIV? Bob Gibson, with 69,720 career Pitcher PIV to Harvey Haddix's 32,941.
Bob Gibson
Harvey Haddix
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, so read them against the run environment each player worked in, or use the PIV card below, which is adjusted.
| Statistic | Bob Gibson | Harvey Haddix |
|---|---|---|
| Wins | Leads: 251 | 136 |
| Losses not scored | 174 | 113 |
| Games | Leads: 528 | 453 |
| Games Started | Leads: 482 | 285 |
| Complete Games | Leads: 255 | 99 |
| Shutouts | Leads: 56 | 20 |
| Saves | 6 | Leads: 21 |
| Strikeouts | Leads: 3,117 | 1,575 |
| Walks not scored | 1,336 | 601 |
| Hits Allowed not scored | 3,279 | 2,154 |
| Home Runs Allowed not scored | 257 | 240 |
| Innings Pitched | Leads: 3,884.1 | 2,235.0 |
| ERA | Leads: 2.91 | 3.63 |
| WHIP | Leads: 1.19 | 1.23 |
| K/9 | Leads: 7.22 | 6.34 |
| BB/9 | 3.10 | Leads: 2.42 |
PIV Comparison through 2025
By PIV (Player Impact Value), Bob Gibson outpaces Harvey Haddix 69,720 to 32,941 — driven by both sides of the ledger: 4,101 PIV per season to 2,196, across 17 seasons to 15. 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)
Harvey Haddix — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Bob Gibson leads in wins, strikeouts, ERA, and WHIP, while Harvey Haddix owns no headline categories. 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 Harvey Haddix careers compare
From 1959 through 1965, Bob Gibson and Harvey Haddix were in the majors together. The two careers are close in length, 528 games for Bob Gibson and 453 for Harvey Haddix across 17 and 15 PIV seasons, so the totals compare on fairly even terms. The green cells for Harvey Haddix are saves (21 to 6) and walks per nine (2.42 to 3.10). The per-nine rows read 7.22 strikeouts and 3.10 walks for Bob Gibson, 6.34 and 2.42 for Harvey Haddix. Bob Gibson was mainly a starter (482 starts in 528 games), while Harvey Haddix split time between starting and relief (285 starts in 453 games). In WHIP, Bob Gibson's 1.19 beats Harvey Haddix's 1.23.
Bob Gibson vs Harvey Haddix: Frequently Asked Questions
- Who was better, Bob Gibson or Harvey Haddix?
- By the career statistics compared on this page, Bob Gibson leads Harvey Haddix in 10 of the 12 scored categories.
- Who had the better ERA?
- Bob Gibson, with 2.91 to Harvey Haddix's 3.63.
- Who won more games?
- Bob Gibson, with 251 to Harvey Haddix's 136.
- Who recorded more strikeouts?
- Bob Gibson, with 3,117 to Harvey Haddix's 1,575.
- Who had the better WHIP?
- Bob Gibson, with 1.19 to Harvey Haddix's 1.23.