George Kirby vs Juan Marichal: Career Stats Comparison
Juan Marichal has the better career line of the two, leading 10 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; Juan Marichal played 1960–1975 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 Juan Marichal (1960–1975) — breaking in during the 2020s and the 1960s respectively, so they pitched against very different hitting environments. George Kirby has 54 wins and 769 strikeouts through October 12, 2026; Juan Marichal finished with 243 wins and 2,303 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Juan Marichal, with 2.89 to George Kirby's 3.74.
- Who won more games? Juan Marichal, with 243 to George Kirby's 54.
- Who recorded more strikeouts? Juan Marichal, with 2,303 to George Kirby's 769.
- Who had the better WHIP? Juan Marichal, with 1.10 to George Kirby's 1.17.
- Who pitched more innings? Juan Marichal, with 3,507.1 to George Kirby's 812.1.
- Who threw more shutouts? Juan Marichal, with 52 to George Kirby's 0.
- Who has the higher career Pitcher PIV? Juan Marichal, with 48,870 career Pitcher PIV to George Kirby's 14,778.
George Kirby
Juan Marichal
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 1960s 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 | Juan Marichal |
|---|---|---|
| Wins | 54 | Leads: 243 |
| Losses not scored | 45 | 142 |
| Games | 142 | Leads: 471 |
| Games Started | 142 | Leads: 457 |
| Complete Games | 2 | Leads: 244 |
| Shutouts | 0 | Leads: 52 |
| Saves | 0 | Leads: 2 |
| Strikeouts | 769 | Leads: 2,303 |
| Walks not scored | 140 | 709 |
| Hits Allowed not scored | 813 | 3,153 |
| Home Runs Allowed not scored | 94 | 320 |
| Innings Pitched | 812.1 | Leads: 3,507.1 |
| ERA | 3.74 | Leads: 2.89 |
| WHIP | 1.17 | Leads: 1.10 |
| K/9 | Leads: 8.52 | 5.91 |
| BB/9 | Leads: 1.55 | 1.82 |
PIV Comparison through 2025
By PIV (Player Impact Value), Juan Marichal outpaces George Kirby 48,870 to 14,778 — a longevity gap rather than a per-season one: Juan Marichal played 16 seasons to George Kirby's 4, while George Kirby carries the higher per-season figure (3,695 to 3,054). 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)
Juan Marichal — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Juan Marichal leads in wins, strikeouts, ERA, and WHIP, while George Kirby owns K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Juan Marichal. PIV agrees: Juan Marichal 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 Juan Marichal careers compare
No season is shared: Juan Marichal played 1960–1975, George Kirby 2022–present. Playing time explains much of the gap in the counting rows: George Kirby has appeared in 142 games to Juan Marichal's 471. George Kirby's edges on the table are strikeouts per nine (8.52 to 5.91) and walks per nine (1.55 to 1.82). By rate, George Kirby struck out 8.52 and walked 1.55 per nine innings; Juan Marichal struck out 5.91 and walked 1.82. Both had the same role: George Kirby was mainly a starter (142 starts in 142 games); Juan Marichal was mainly a starter (457 starts in 471 games). George Kirby's numbers are live and update with each game, so the comparison is a snapshot.
George Kirby vs Juan Marichal: Frequently Asked Questions
- Who was better, George Kirby or Juan Marichal?
- By the career statistics compared on this page, Juan Marichal leads George Kirby in 10 of the 12 scored categories.
- Who had the better ERA?
- Juan Marichal, with 2.89 to George Kirby's 3.74.
- Who won more games?
- Juan Marichal, with 243 to George Kirby's 54.
- Who recorded more strikeouts?
- Juan Marichal, with 2,303 to George Kirby's 769.
- Who had the better WHIP?
- Juan Marichal, with 1.10 to George Kirby's 1.17.