Tom Seaver vs John Smoltz: Career Stats Comparison
Tom Seaver 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). Tom Seaver played 1967–1986 as a pitcher; John Smoltz played 1988–2009 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
Tom Seaver (1967–1986) and John Smoltz (1988–2009) — breaking in during the 1960s and the 1980s respectively, so they pitched against very different hitting environments. Tom Seaver finished with 311 wins and 3,640 strikeouts; John Smoltz finished with 213 wins and 3,084 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Tom Seaver, with 2.86 to John Smoltz's 3.33.
- Who won more games? Tom Seaver, with 311 to John Smoltz's 213.
- Who recorded more strikeouts? Tom Seaver, with 3,640 to John Smoltz's 3,084.
- Who had the better WHIP? Tom Seaver, with 1.12 to John Smoltz's 1.18.
- Who pitched more innings? Tom Seaver, with 4,782.2 to John Smoltz's 3,473.0.
- Who threw more shutouts? Tom Seaver, with 61 to John Smoltz's 16.
- Who has the higher career Pitcher PIV? John Smoltz, with 91,907 career Pitcher PIV to Tom Seaver's 79,192.
Tom Seaver
John Smoltz
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 1960s and the 1980s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Tom Seaver | John Smoltz |
|---|---|---|
| Wins | Leads: 311 | 213 |
| Losses not scored | 205 | 155 |
| Games | 656 | Leads: 723 |
| Games Started | Leads: 647 | 481 |
| Complete Games | Leads: 231 | 53 |
| Shutouts | Leads: 61 | 16 |
| Saves | 1 | Leads: 154 |
| Strikeouts | Leads: 3,640 | 3,084 |
| Walks not scored | 1,390 | 1,010 |
| Hits Allowed not scored | 3,971 | 3,074 |
| Home Runs Allowed not scored | 380 | 288 |
| Innings Pitched | Leads: 4,782.2 | 3,473.0 |
| ERA | Leads: 2.86 | 3.33 |
| WHIP | Leads: 1.12 | 1.18 |
| K/9 | 6.85 | Leads: 7.99 |
| BB/9 | Leads: 2.62 | 2.62 |
PIV Comparison through 2025
By PIV (Player Impact Value), John Smoltz leads Tom Seaver 91,907 to 79,192 — driven by per-season impact — 4,178 PIV per season to 3,600 — rather than by longevity, since John Smoltz played 22 seasons to Tom Seaver's 22. 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).
Tom Seaver — top 3 seasons by ERA (lower is better)
John Smoltz — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Tom Seaver leads in wins, strikeouts, ERA, and WHIP, while John Smoltz owns K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Tom Seaver. Note that PIV actually grades John Smoltz ahead, which means Tom Seaver's edge is partly volume. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Tom Seaver and John Smoltz careers compare
No season is shared: Tom Seaver played 1967–1986, John Smoltz 1988–2009. The two careers are close in length, 656 games for Tom Seaver and 723 for John Smoltz across 22 and 22 PIV seasons, so the totals compare on fairly even terms. Where John Smoltz comes out ahead, it is in games (723 to 656), saves (154 to 1), and strikeouts per nine (7.99 to 6.85). By rate, Tom Seaver struck out 6.85 and walked 2.62 per nine innings; John Smoltz struck out 7.99 and walked 2.62. Tom Seaver was mainly a starter (647 starts in 656 games), while John Smoltz split time between starting and relief (481 starts in 723 games).
Tom Seaver vs John Smoltz: Frequently Asked Questions
- Who was better, Tom Seaver or John Smoltz?
- By the career statistics compared on this page, Tom Seaver leads John Smoltz in 9 of the 12 scored categories.
- Who had the better ERA?
- Tom Seaver, with 2.86 to John Smoltz's 3.33.
- Who won more games?
- Tom Seaver, with 311 to John Smoltz's 213.
- Who recorded more strikeouts?
- Tom Seaver, with 3,640 to John Smoltz's 3,084.
- Who had the better WHIP?
- Tom Seaver, with 1.12 to John Smoltz's 1.18.