Roy Halladay vs Juan Marichal: Career Stats Comparison
Juan Marichal has the better career line of the two, leading 11 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Roy Halladay played 1998–2013 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
Roy Halladay (1998–2013) and Juan Marichal (1960–1975) — breaking in during the 1990s and the 1960s respectively, so they pitched against very different hitting environments. Roy Halladay finished with 203 wins and 2,117 strikeouts; 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 Roy Halladay's 3.38.
- Who won more games? Juan Marichal, with 243 to Roy Halladay's 203.
- Who recorded more strikeouts? Juan Marichal, with 2,303 to Roy Halladay's 2,117.
- Who had the better WHIP? Juan Marichal, with 1.10 to Roy Halladay's 1.18.
- Who pitched more innings? Juan Marichal, with 3,507.1 to Roy Halladay's 2,749.1.
- Who threw more shutouts? Juan Marichal, with 52 to Roy Halladay's 20.
- Who has the higher career Pitcher PIV? Roy Halladay, with 66,478 career Pitcher PIV to Juan Marichal's 48,870.
Roy Halladay
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 1990s and the 1960s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Roy Halladay | Juan Marichal |
|---|---|---|
| Wins | 203 | Leads: 243 |
| Losses not scored | 105 | 142 |
| Games | 416 | Leads: 471 |
| Games Started | 390 | Leads: 457 |
| Complete Games | 67 | Leads: 244 |
| Shutouts | 20 | Leads: 52 |
| Saves | 1 | Leads: 2 |
| Strikeouts | 2,117 | Leads: 2,303 |
| Walks not scored | 592 | 709 |
| Hits Allowed not scored | 2,646 | 3,153 |
| Home Runs Allowed not scored | 236 | 320 |
| Innings Pitched | 2,749.1 | Leads: 3,507.1 |
| ERA | 3.38 | Leads: 2.89 |
| WHIP | 1.18 | Leads: 1.10 |
| K/9 | Leads: 6.93 | 5.91 |
| BB/9 | 1.94 | Leads: 1.82 |
PIV Comparison through 2025
By PIV (Player Impact Value), Roy Halladay outpaces Juan Marichal 66,478 to 48,870 — driven by per-season impact — 4,155 PIV per season to 3,054 — rather than by longevity, since Roy Halladay played 16 seasons to Juan Marichal's 16. 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).
Roy Halladay — 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 Roy Halladay owns K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Juan Marichal. Note that PIV actually grades Roy Halladay ahead, which means Juan Marichal's edge is partly volume. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Roy Halladay and Juan Marichal careers compare
Juan Marichal (1960–1975) was finished before Roy Halladay (1998–2013) arrived, so they never shared a league. The two careers are close in length, 416 games for Roy Halladay and 471 for Juan Marichal across 16 and 16 PIV seasons, so the totals compare on fairly even terms. Where Roy Halladay comes out ahead, it is in strikeouts per nine (6.93 to 5.91). The per-nine rows read 6.93 strikeouts and 1.94 walks for Roy Halladay, 5.91 and 1.82 for Juan Marichal. Both had the same role: Roy Halladay was mainly a starter (390 starts in 416 games); Juan Marichal was mainly a starter (457 starts in 471 games).
Roy Halladay vs Juan Marichal: Frequently Asked Questions
- Who was better, Roy Halladay or Juan Marichal?
- By the career statistics compared on this page, Juan Marichal leads Roy Halladay in 11 of the 12 scored categories.
- Who had the better ERA?
- Juan Marichal, with 2.89 to Roy Halladay's 3.38.
- Who won more games?
- Juan Marichal, with 243 to Roy Halladay's 203.
- Who recorded more strikeouts?
- Juan Marichal, with 2,303 to Roy Halladay's 2,117.
- Who had the better WHIP?
- Juan Marichal, with 1.10 to Roy Halladay's 1.18.