Roy Halladay vs Jake Peavy: Career Stats Comparison
Roy Halladay 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). Roy Halladay played 1998–2013 as a pitcher; Jake Peavy played 2002–2016 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 Jake Peavy (2002–2016) — breaking in during the 1990s and the 2000s respectively, so they pitched against very different hitting environments. Roy Halladay finished with 203 wins and 2,117 strikeouts; Jake Peavy finished with 152 wins and 2,207 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Roy Halladay, with 3.38 to Jake Peavy's 3.63.
- Who won more games? Roy Halladay, with 203 to Jake Peavy's 152.
- Who recorded more strikeouts? Jake Peavy, with 2,207 to Roy Halladay's 2,117.
- Who had the better WHIP? Roy Halladay, with 1.18 to Jake Peavy's 1.20.
- Who pitched more innings? Roy Halladay, with 2,749.1 to Jake Peavy's 2,377.0.
- Who threw more shutouts? Roy Halladay, with 20 to Jake Peavy's 6.
- Who has the higher career Pitcher PIV? Roy Halladay, with 66,478 career Pitcher PIV to Jake Peavy's 34,745.
Roy Halladay
Jake Peavy
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 2000s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Roy Halladay | Jake Peavy |
|---|---|---|
| Wins | Leads: 203 | 152 |
| Losses not scored | 105 | 126 |
| Games | Leads: 416 | 388 |
| Games Started | Leads: 390 | 377 |
| Complete Games | Leads: 67 | 15 |
| Shutouts | Leads: 20 | 6 |
| Saves | Leads: 1 | 0 |
| Strikeouts | 2,117 | Leads: 2,207 |
| Walks not scored | 592 | 708 |
| Hits Allowed not scored | 2,646 | 2,134 |
| Home Runs Allowed not scored | 236 | 259 |
| Innings Pitched | Leads: 2,749.1 | 2,377.0 |
| ERA | Leads: 3.38 | 3.63 |
| WHIP | Leads: 1.18 | 1.20 |
| K/9 | 6.93 | Leads: 8.36 |
| BB/9 | Leads: 1.94 | 2.68 |
PIV Comparison through 2025
By PIV (Player Impact Value), Roy Halladay outpaces Jake Peavy 66,478 to 34,745 — driven by per-season impact — 4,155 PIV per season to 1,930 — rather than by longevity, since Roy Halladay played 16 seasons to Jake Peavy's 18. 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)
Jake Peavy — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Roy Halladay leads in wins, ERA, WHIP, and innings pitched, while Jake Peavy owns strikeouts and K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Roy Halladay. PIV agrees: Roy Halladay grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Roy Halladay and Jake Peavy careers compare
Roy Halladay and Jake Peavy were active at the same time between 2002 and 2013. With 416 games against 388 across 16 and 18 PIV seasons, neither player's totals owe much to extra seasons. Where Jake Peavy comes out ahead, it is in strikeouts (2,207 to 2,117) and strikeouts per nine (8.36 to 6.93). The per-nine rows read 6.93 strikeouts and 1.94 walks for Roy Halladay, 8.36 and 2.68 for Jake Peavy. Roy Halladay was mainly a starter (390 starts in 416 games), and Jake Peavy was mainly a starter (377 starts in 388 games). Complete games (67 to 15) show how differently the two eras used starters.
Roy Halladay vs Jake Peavy: Frequently Asked Questions
- Who was better, Roy Halladay or Jake Peavy?
- By the career statistics compared on this page, Roy Halladay leads Jake Peavy in 10 of the 12 scored categories.
- Who had the better ERA?
- Roy Halladay, with 3.38 to Jake Peavy's 3.63.
- Who won more games?
- Roy Halladay, with 203 to Jake Peavy's 152.
- Who recorded more strikeouts?
- Jake Peavy, with 2,207 to Roy Halladay's 2,117.
- Who had the better WHIP?
- Roy Halladay, with 1.18 to Jake Peavy's 1.20.