Willie Foster vs Lefty Grove: Career Stats Comparison
Lefty Grove 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). Willie Foster played ?–1937 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
Willie Foster (?–1937) and Lefty Grove (1925–1941) — they pitched in different contexts, so adjusted stats matter. Willie Foster finished with 125 wins and 1,062 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? Willie Foster, with 2.66 to Lefty Grove's 3.06.
- Who won more games? Lefty Grove, with 300 to Willie Foster's 125.
- Who recorded more strikeouts? Lefty Grove, with 2,266 to Willie Foster's 1,062.
- Who had the better WHIP? Willie Foster, with 1.15 to Lefty Grove's 1.28.
- Who pitched more innings? Lefty Grove, with 3,940.2 to Willie Foster's 1,665.0.
- Who threw more shutouts? Lefty Grove, with 35 to Willie Foster's 34.
- Who has the higher career Pitcher PIV? Lefty Grove, with 81,321 career Pitcher PIV to Willie Foster's 41,672.
Willie Foster
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, so read them against the run environment each player worked in, or use the PIV card below, which is adjusted.
| Statistic | Willie Foster | Lefty Grove |
|---|---|---|
| Wins | 125 | Leads: 300 |
| Losses not scored | 60 | 141 |
| Games | 262 | Leads: 616 |
| Games Started | 185 | Leads: 457 |
| Complete Games | 142 | Leads: 298 |
| Shutouts | 34 | Leads: 35 |
| Saves | 14 | Leads: 55 |
| Strikeouts | 1,062 | Leads: 2,266 |
| Walks not scored | 522 | 1,187 |
| Hits Allowed not scored | 1,397 | 3,849 |
| Home Runs Allowed not scored | 41 | 162 |
| Innings Pitched | 1,665.0 | Leads: 3,940.2 |
| ERA | Leads: 2.66 | 3.06 |
| WHIP | Leads: 1.15 | 1.28 |
| K/9 | Leads: 5.74 | 5.18 |
| BB/9 | 2.82 | Leads: 2.71 |
PIV Comparison through 2025
By PIV (Player Impact Value), Lefty Grove outpaces Willie Foster 81,321 to 41,672 — driven by per-season impact — 4,784 PIV per season to 2,193 — rather than by longevity, since Lefty Grove played 17 seasons to Willie Foster's 19. 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).
Willie Foster — 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, Lefty Grove leads in wins, strikeouts, and innings pitched, while Willie Foster owns ERA, WHIP, and K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Lefty Grove. PIV agrees: Lefty Grove grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Willie Foster and Lefty Grove careers compare
The careers of Willie Foster (?–1937) and Lefty Grove (1925–1941) overlapped from 1937 to 1937, so for those seasons they faced the same league conditions. Lefty Grove has the far longer record, 616 games against 262 across 19 and 17 PIV seasons, which inflates every career total. Where Willie Foster comes out ahead, it is in ERA (2.66 to 3.06), WHIP (1.15 to 1.28), and strikeouts per nine (5.74 to 5.18). The per-nine rows read 5.74 strikeouts and 2.82 walks for Willie Foster, 5.18 and 2.71 for Lefty Grove. Willie Foster was mainly a starter (185 starts in 262 games), and Lefty Grove was mainly a starter (457 starts in 616 games).
Willie Foster vs Lefty Grove: Frequently Asked Questions
- Who was better, Willie Foster or Lefty Grove?
- By the career statistics compared on this page, Lefty Grove leads Willie Foster in 9 of the 12 scored categories.
- Who had the better ERA?
- Willie Foster, with 2.66 to Lefty Grove's 3.06.
- Who won more games?
- Lefty Grove, with 300 to Willie Foster's 125.
- Who recorded more strikeouts?
- Lefty Grove, with 2,266 to Willie Foster's 1,062.
- Who had the better WHIP?
- Willie Foster, with 1.15 to Lefty Grove's 1.28.