Lefty Grove vs Sandy Koufax: Career Stats Comparison
Lefty Grove has the better career line of the two, leading 7 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; Sandy Koufax played 1955–1966 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 Sandy Koufax (1955–1966) — breaking in during the 1920s and the 1950s respectively, so they pitched against very different hitting environments. Lefty Grove finished with 300 wins and 2,266 strikeouts; Sandy Koufax finished with 165 wins and 2,396 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Sandy Koufax, with 2.76 to Lefty Grove's 3.06.
- Who won more games? Lefty Grove, with 300 to Sandy Koufax's 165.
- Who recorded more strikeouts? Sandy Koufax, with 2,396 to Lefty Grove's 2,266.
- Who had the better WHIP? Sandy Koufax, with 1.11 to Lefty Grove's 1.28.
- Who pitched more innings? Lefty Grove, with 3,940.2 to Sandy Koufax's 2,324.1.
- Who threw more shutouts? Sandy Koufax, with 40 to Lefty Grove's 35.
- Who has the higher career Pitcher PIV? Lefty Grove, with 81,321 career Pitcher PIV to Sandy Koufax's 63,020.
Lefty Grove
Sandy Koufax
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 1950s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Lefty Grove | Sandy Koufax |
|---|---|---|
| Wins | Leads: 300 | 165 |
| Losses not scored | 141 | 87 |
| Games | Leads: 616 | 397 |
| Games Started | Leads: 457 | 314 |
| Complete Games | Leads: 298 | 137 |
| Shutouts | 35 | Leads: 40 |
| Saves | Leads: 55 | 9 |
| Strikeouts | 2,266 | Leads: 2,396 |
| Walks not scored | 1,187 | 817 |
| Hits Allowed not scored | 3,849 | 1,754 |
| Home Runs Allowed not scored | 162 | 204 |
| Innings Pitched | Leads: 3,940.2 | 2,324.1 |
| ERA | 3.06 | Leads: 2.76 |
| WHIP | 1.28 | Leads: 1.11 |
| K/9 | 5.18 | Leads: 9.28 |
| BB/9 | Leads: 2.71 | 3.16 |
PIV Comparison through 2025
By PIV (Player Impact Value), Lefty Grove leads Sandy Koufax 81,321 to 63,020 — a longevity gap rather than a per-season one: Lefty Grove played 17 seasons to Sandy Koufax's 12, while Sandy Koufax carries the higher per-season figure (5,252 to 4,784). 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)
Sandy Koufax — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Sandy Koufax 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 Sandy Koufax. Note that PIV actually grades Lefty Grove ahead, which means Sandy Koufax's edge is partly volume. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Lefty Grove and Sandy Koufax careers compare
The two careers never overlapped: Lefty Grove's ended in 1941, and Sandy Koufax debuted in 1955. Lefty Grove has the far longer record, 616 games against 397 across 17 and 12 PIV seasons, which inflates every career total. The per-nine rows read 5.18 strikeouts and 2.71 walks for Lefty Grove, 9.28 and 3.16 for Sandy Koufax. Lefty Grove was mainly a starter (457 starts in 616 games), and Sandy Koufax was mainly a starter (314 starts in 397 games). In WHIP, Sandy Koufax's 1.11 beats Lefty Grove's 1.28. Best seasons: 1931 for Lefty Grove (2.06 ERA, 31-4, 175 K in 288 IP) and 1966 for Sandy Koufax (1.73 ERA, 27-9, 317 K in 323 IP).
Lefty Grove vs Sandy Koufax: Frequently Asked Questions
- Who was better, Lefty Grove or Sandy Koufax?
- By the career statistics compared on this page, Lefty Grove leads Sandy Koufax in 7 of the 12 scored categories.
- Who had the better ERA?
- Sandy Koufax, with 2.76 to Lefty Grove's 3.06.
- Who won more games?
- Lefty Grove, with 300 to Sandy Koufax's 165.
- Who recorded more strikeouts?
- Sandy Koufax, with 2,396 to Lefty Grove's 2,266.
- Who had the better WHIP?
- Sandy Koufax, with 1.11 to Lefty Grove's 1.28.