Roy Halladay vs Blake Snell: 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; Blake Snell has played 2016–present 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 Blake Snell (2016–present) — breaking in during the 1990s and the 2010s respectively, so they pitched against very different hitting environments. Roy Halladay finished with 203 wins and 2,117 strikeouts; Blake Snell has 85 wins and 1,495 strikeouts through October 12, 2026. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Blake Snell, with 3.10 to Roy Halladay's 3.38.
- Who won more games? Roy Halladay, with 203 to Blake Snell's 85.
- Who recorded more strikeouts? Roy Halladay, with 2,117 to Blake Snell's 1,495.
- Who had the better WHIP? Roy Halladay, with 1.18 to Blake Snell's 1.22.
- Who pitched more innings? Roy Halladay, with 2,749.1 to Blake Snell's 1,200.2.
- Who threw more shutouts? Roy Halladay, with 20 to Blake Snell's 1.
- Who has the higher career Pitcher PIV? Roy Halladay, with 66,478 career Pitcher PIV to Blake Snell's 27,494.
Roy Halladay
Blake Snell
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 2010s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
Blake Snell is still active — his totals below are current through October 12, 2026.
| Statistic | Roy Halladay | Blake Snell |
|---|---|---|
| Wins | Leads: 203 | 85 |
| Losses not scored | 105 | 63 |
| Games | Leads: 416 | 231 |
| Games Started | Leads: 390 | 231 |
| Complete Games | Leads: 67 | 1 |
| Shutouts | Leads: 20 | 1 |
| Saves | Leads: 1 | 0 |
| Strikeouts | Leads: 2,117 | 1,495 |
| Walks not scored | 592 | 537 |
| Hits Allowed not scored | 2,646 | 922 |
| Home Runs Allowed not scored | 236 | 111 |
| Innings Pitched | Leads: 2,749.1 | 1,200.2 |
| ERA | 3.38 | Leads: 3.10 |
| WHIP | Leads: 1.18 | 1.22 |
| K/9 | 6.93 | Leads: 11.21 |
| BB/9 | Leads: 1.94 | 4.03 |
PIV Comparison through 2025
By PIV (Player Impact Value), Roy Halladay outpaces Blake Snell 66,478 to 27,494 — driven by both sides of the ledger: 4,155 PIV per season to 2,749, across 16 seasons to 10. 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)
Blake Snell — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Roy Halladay leads in wins, strikeouts, WHIP, and innings pitched, while Blake Snell owns ERA 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 Blake Snell careers compare
The two careers never overlapped: Roy Halladay's ended in 2013, and Blake Snell debuted in 2016. The table compares 416 games of Roy Halladay with 231 of Blake Snell across 16 and 10 PIV seasons; totals favor the longer career by default. The green cells for Blake Snell are ERA (3.10 to 3.38) and strikeouts per nine (11.21 to 6.93). The per-nine rows read 6.93 strikeouts and 1.94 walks for Roy Halladay, 11.21 and 4.03 for Blake Snell. Both had the same role: Roy Halladay was mainly a starter (390 starts in 416 games); Blake Snell was mainly a starter (231 starts in 231 games). Blake Snell's numbers are live and update with each game, so the comparison is a snapshot.
Roy Halladay vs Blake Snell: Frequently Asked Questions
- Who was better, Roy Halladay or Blake Snell?
- By the career statistics compared on this page, Roy Halladay leads Blake Snell in 10 of the 12 scored categories.
- Who had the better ERA?
- Blake Snell, with 3.10 to Roy Halladay's 3.38.
- Who won more games?
- Roy Halladay, with 203 to Blake Snell's 85.
- Who recorded more strikeouts?
- Roy Halladay, with 2,117 to Blake Snell's 1,495.
- Who had the better WHIP?
- Roy Halladay, with 1.18 to Blake Snell's 1.22.