George Kirby 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). George Kirby has played 2022–present 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
George Kirby (2022–present) and Warren Spahn (1942–1965) — breaking in during the 2020s and the 1940s respectively, so they pitched against very different hitting environments. George Kirby has 54 wins and 769 strikeouts through October 12, 2026; 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? Warren Spahn, with 3.09 to George Kirby's 3.74.
- Who won more games? Warren Spahn, with 363 to George Kirby's 54.
- Who recorded more strikeouts? Warren Spahn, with 2,583 to George Kirby's 769.
- Who had the better WHIP? George Kirby, with 1.17 to Warren Spahn's 1.19.
- Who pitched more innings? Warren Spahn, with 5,243.2 to George Kirby's 812.1.
- Who threw more shutouts? Warren Spahn, with 63 to George Kirby's 0.
- Who has the higher career Pitcher PIV? Warren Spahn, with 63,558 career Pitcher PIV to George Kirby's 14,778.
George Kirby
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 2020s and the 1940s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
George Kirby is still active — his totals below are current through October 12, 2026.
| Statistic | George Kirby | Warren Spahn |
|---|---|---|
| Wins | 54 | Leads: 363 |
| Losses not scored | 45 | 245 |
| Games | 142 | Leads: 750 |
| Games Started | 142 | Leads: 665 |
| Complete Games | 2 | Leads: 382 |
| Shutouts | 0 | Leads: 63 |
| Saves | 0 | Leads: 29 |
| Strikeouts | 769 | Leads: 2,583 |
| Walks not scored | 140 | 1,434 |
| Hits Allowed not scored | 813 | 4,830 |
| Home Runs Allowed not scored | 94 | 434 |
| Innings Pitched | 812.1 | Leads: 5,243.2 |
| ERA | 3.74 | Leads: 3.09 |
| WHIP | Leads: 1.17 | 1.19 |
| K/9 | Leads: 8.52 | 4.43 |
| BB/9 | Leads: 1.55 | 2.46 |
PIV Comparison through 2025
By PIV (Player Impact Value), Warren Spahn outpaces George Kirby 63,558 to 14,778 — a longevity gap rather than a per-season one: Warren Spahn played 22 seasons to George Kirby's 4, while George Kirby carries the higher per-season figure (3,695 to 2,889). 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).
George Kirby — 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, ERA, and innings pitched, while George Kirby owns WHIP and K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Warren Spahn. PIV agrees: Warren Spahn grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the George Kirby and Warren Spahn careers compare
The two careers never overlapped: Warren Spahn's ended in 1965, and George Kirby debuted in 2022. The table compares 142 games of George Kirby with 750 of Warren Spahn across 4 and 22 PIV seasons; totals favor the longer career by default. Where George Kirby comes out ahead, it is in WHIP (1.17 to 1.19), strikeouts per nine (8.52 to 4.43), and walks per nine (1.55 to 2.46). The per-nine rows read 8.52 strikeouts and 1.55 walks for George Kirby, 4.43 and 2.46 for Warren Spahn. George Kirby was mainly a starter (142 starts in 142 games), and Warren Spahn was mainly a starter (665 starts in 750 games). Because George Kirby is still playing, the totals above will keep moving through the season.
George Kirby vs Warren Spahn: Frequently Asked Questions
- Who was better, George Kirby or Warren Spahn?
- By the career statistics compared on this page, Warren Spahn leads George Kirby in 9 of the 12 scored categories.
- Who had the better ERA?
- Warren Spahn, with 3.09 to George Kirby's 3.74.
- Who won more games?
- Warren Spahn, with 363 to George Kirby's 54.
- Who recorded more strikeouts?
- Warren Spahn, with 2,583 to George Kirby's 769.
- Who had the better WHIP?
- George Kirby, with 1.17 to Warren Spahn's 1.19.