Bob Gibson vs Lefty Grove: Career Stats Comparison
Bob Gibson and Lefty Grove are close to even, splitting the 12 scored categories on this page 6–6 (4 further counting totals are shown but not scored). Bob Gibson played 1959–1975 as a pitcher; Lefty Grove played 1925–1941 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 Lefty Grove (1925–1941) — breaking in during the 1950s and the 1920s respectively, so they pitched against very different hitting environments. Bob Gibson finished with 251 wins and 3,117 strikeouts; Lefty Grove finished with 300 wins and 2,266 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 Lefty Grove's 3.06.
- Who won more games? Lefty Grove, with 300 to Bob Gibson's 251.
- Who recorded more strikeouts? Bob Gibson, with 3,117 to Lefty Grove's 2,266.
- Who had the better WHIP? Bob Gibson, with 1.19 to Lefty Grove's 1.28.
- Who pitched more innings? Lefty Grove, with 3,940.2 to Bob Gibson's 3,884.1.
- Who threw more shutouts? Bob Gibson, with 56 to Lefty Grove's 35.
- Who has the higher career Pitcher PIV? Lefty Grove, with 81,321 career Pitcher PIV to Bob Gibson's 69,720.
Bob Gibson
Lefty Grove
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 1920s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Bob Gibson | Lefty Grove |
|---|---|---|
| Wins | 251 | Leads: 300 |
| Losses not scored | 174 | 141 |
| Games | 528 | Leads: 616 |
| Games Started | Leads: 482 | 457 |
| Complete Games | 255 | Leads: 298 |
| Shutouts | Leads: 56 | 35 |
| Saves | 6 | Leads: 55 |
| Strikeouts | Leads: 3,117 | 2,266 |
| Walks not scored | 1,336 | 1,187 |
| Hits Allowed not scored | 3,279 | 3,849 |
| Home Runs Allowed not scored | 257 | 162 |
| Innings Pitched | 3,884.1 | Leads: 3,940.2 |
| ERA | Leads: 2.91 | 3.06 |
| WHIP | Leads: 1.19 | 1.28 |
| K/9 | Leads: 7.22 | 5.18 |
| BB/9 | 3.10 | Leads: 2.71 |
PIV Comparison through 2025
By PIV (Player Impact Value), Lefty Grove leads Bob Gibson 81,321 to 69,720 — driven by per-season impact — 4,784 PIV per season to 4,101 — rather than by longevity, since Lefty Grove played 17 seasons to Bob Gibson's 17. 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)
Lefty Grove — 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 Lefty Grove owns wins and innings pitched. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Bob Gibson. Note that PIV actually grades Lefty Grove ahead, which means Bob Gibson's edge is partly volume. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Bob Gibson and Lefty Grove careers compare
The two careers never overlapped: Lefty Grove's ended in 1941, and Bob Gibson debuted in 1959. The two careers are close in length, 528 games for Bob Gibson and 616 for Lefty Grove across 17 and 17 PIV seasons, so the totals compare on fairly even terms. The per-nine rows read 7.22 strikeouts and 3.10 walks for Bob Gibson, 5.18 and 2.71 for Lefty Grove. Bob Gibson was mainly a starter (482 starts in 528 games), and Lefty Grove was mainly a starter (457 starts in 616 games). In WHIP, Bob Gibson's 1.19 beats Lefty Grove's 1.28.
Bob Gibson vs Lefty Grove: Frequently Asked Questions
- Who had the better ERA?
- Bob Gibson, with 2.91 to Lefty Grove's 3.06.
- Who won more games?
- Lefty Grove, with 300 to Bob Gibson's 251.
- Who recorded more strikeouts?
- Bob Gibson, with 3,117 to Lefty Grove's 2,266.
- Who had the better WHIP?
- Bob Gibson, with 1.19 to Lefty Grove's 1.28.