Jim Bunning vs Roy Halladay: Career Stats Comparison
Jim Bunning 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). Jim Bunning played 1955–1971 as a pitcher; Roy Halladay played 1998–2013 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
Jim Bunning (1955–1971) and Roy Halladay (1998–2013) — breaking in during the 1950s and the 1990s respectively, so they pitched against very different hitting environments. Jim Bunning finished with 224 wins and 2,855 strikeouts; Roy Halladay finished with 203 wins and 2,117 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Jim Bunning, with 3.27 to Roy Halladay's 3.38.
- Who won more games? Jim Bunning, with 224 to Roy Halladay's 203.
- Who recorded more strikeouts? Jim Bunning, with 2,855 to Roy Halladay's 2,117.
- Who had the better WHIP? Neither — both are at 1.18.
- Who pitched more innings? Jim Bunning, with 3,760.1 to Roy Halladay's 2,749.1.
- Who threw more shutouts? Jim Bunning, with 40 to Roy Halladay's 20.
- Who has the higher career Pitcher PIV? Roy Halladay, with 66,478 career Pitcher PIV to Jim Bunning's 44,929.
Jim Bunning
Roy Halladay
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 1950s and the 1990s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Jim Bunning | Roy Halladay |
|---|---|---|
| Wins | Leads: 224 | 203 |
| Losses not scored | 184 | 105 |
| Games | Leads: 591 | 416 |
| Games Started | Leads: 519 | 390 |
| Complete Games | Leads: 151 | 67 |
| Shutouts | Leads: 40 | 20 |
| Saves | Leads: 16 | 1 |
| Strikeouts | Leads: 2,855 | 2,117 |
| Walks not scored | 1,000 | 592 |
| Hits Allowed not scored | 3,433 | 2,646 |
| Home Runs Allowed not scored | 372 | 236 |
| Innings Pitched | Leads: 3,760.1 | 2,749.1 |
| ERA | Leads: 3.27 | 3.38 |
| WHIP | 1.18 | Leads: 1.18 |
| K/9 | 6.83 | Leads: 6.93 |
| BB/9 | 2.39 | Leads: 1.94 |
PIV Comparison through 2025
By PIV (Player Impact Value), Roy Halladay outpaces Jim Bunning 66,478 to 44,929 — driven by per-season impact — 4,155 PIV per season to 2,496 — rather than by longevity, since Roy Halladay played 16 seasons to Jim Bunning'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).
Jim Bunning — top 3 seasons by ERA (lower is better)
Roy Halladay — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Jim Bunning leads in wins, strikeouts, ERA, and innings pitched, while Roy Halladay owns WHIP and K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Jim Bunning. Note that PIV actually grades Roy Halladay ahead, which means Jim Bunning's edge is partly volume. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Jim Bunning and Roy Halladay careers compare
The two careers never overlapped: Jim Bunning's ended in 1971, and Roy Halladay debuted in 1998. With 591 games against 416 across 18 and 16 PIV seasons, neither player's totals owe much to extra seasons. Roy Halladay's edges on the table are WHIP (1.18 to 1.18), strikeouts per nine (6.93 to 6.83), and walks per nine (1.94 to 2.39). The per-nine rows read 6.83 strikeouts and 2.39 walks for Jim Bunning, 6.93 and 1.94 for Roy Halladay. Jim Bunning was mainly a starter (519 starts in 591 games), and Roy Halladay was mainly a starter (390 starts in 416 games). In WHIP, Roy Halladay's 1.18 beats Jim Bunning's 1.18.
Jim Bunning vs Roy Halladay: Frequently Asked Questions
- Who was better, Jim Bunning or Roy Halladay?
- By the career statistics compared on this page, Jim Bunning leads Roy Halladay in 9 of the 12 scored categories.
- Who had the better ERA?
- Jim Bunning, with 3.27 to Roy Halladay's 3.38.
- Who won more games?
- Jim Bunning, with 224 to Roy Halladay's 203.
- Who recorded more strikeouts?
- Jim Bunning, with 2,855 to Roy Halladay's 2,117.
- Who had the better WHIP?
- Neither — both are at 1.18.