Lefty Grove vs Warren Spahn: Career Stats Comparison
Warren Spahn has the better career line of the two, leading 9 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Lefty Grove played 1925–1941 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
Lefty Grove (1925–1941) and Warren Spahn (1942–1965) — breaking in during the 1920s and the 1940s respectively, so they pitched against very different hitting environments. Lefty Grove finished with 300 wins and 2,266 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? Lefty Grove, with 3.06 to Warren Spahn's 3.09.
- Who won more games? Warren Spahn, with 363 to Lefty Grove's 300.
- Who recorded more strikeouts? Warren Spahn, with 2,583 to Lefty Grove's 2,266.
- Who had the better WHIP? Warren Spahn, with 1.19 to Lefty Grove's 1.28.
- Who pitched more innings? Warren Spahn, with 5,243.2 to Lefty Grove's 3,940.2.
- Who threw more shutouts? Warren Spahn, with 63 to Lefty Grove's 35.
- Who has the higher career Pitcher PIV? Lefty Grove, with 81,321 career Pitcher PIV to Warren Spahn's 63,558.
Lefty Grove
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 1920s and the 1940s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Lefty Grove | Warren Spahn |
|---|---|---|
| Wins | 300 | Leads: 363 |
| Losses not scored | 141 | 245 |
| Games | 616 | Leads: 750 |
| Games Started | 457 | Leads: 665 |
| Complete Games | 298 | Leads: 382 |
| Shutouts | 35 | Leads: 63 |
| Saves | Leads: 55 | 29 |
| Strikeouts | 2,266 | Leads: 2,583 |
| Walks not scored | 1,187 | 1,434 |
| Hits Allowed not scored | 3,849 | 4,830 |
| Home Runs Allowed not scored | 162 | 434 |
| Innings Pitched | 3,940.2 | Leads: 5,243.2 |
| ERA | Leads: 3.06 | 3.09 |
| WHIP | 1.28 | Leads: 1.19 |
| K/9 | Leads: 5.18 | 4.43 |
| BB/9 | 2.71 | Leads: 2.46 |
PIV Comparison through 2025
By PIV (Player Impact Value), Lefty Grove leads Warren Spahn 81,321 to 63,558 — driven by per-season impact — 4,784 PIV per season to 2,889 — rather than by longevity, since Lefty Grove 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).
Lefty Grove — 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, Warren Spahn leads in wins, strikeouts, WHIP, and innings pitched, while Lefty Grove owns ERA and K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Warren Spahn. Note that PIV actually grades Lefty Grove ahead, which means Warren Spahn's edge is partly volume. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Lefty Grove and Warren Spahn careers compare
No season is shared: Lefty Grove played 1925–1941, Warren Spahn 1942–1965. The two careers are close in length, 616 games for Lefty Grove and 750 for Warren Spahn across 17 and 22 PIV seasons, so the totals compare on fairly even terms. Where Lefty Grove comes out ahead, it is in saves (55 to 29), ERA (3.06 to 3.09), and strikeouts per nine (5.18 to 4.43). The per-nine rows read 5.18 strikeouts and 2.71 walks for Lefty Grove, 4.43 and 2.46 for Warren Spahn. Lefty Grove was mainly a starter (457 starts in 616 games), and Warren Spahn was mainly a starter (665 starts in 750 games).
Lefty Grove vs Warren Spahn: Frequently Asked Questions
- Who was better, Lefty Grove or Warren Spahn?
- By the career statistics compared on this page, Warren Spahn leads Lefty Grove in 9 of the 12 scored categories.
- Who had the better ERA?
- Lefty Grove, with 3.06 to Warren Spahn's 3.09.
- Who won more games?
- Warren Spahn, with 363 to Lefty Grove's 300.
- Who recorded more strikeouts?
- Warren Spahn, with 2,583 to Lefty Grove's 2,266.
- Who had the better WHIP?
- Warren Spahn, with 1.19 to Lefty Grove's 1.28.