Bob Gibson vs Tom Seaver: Career Stats Comparison
Tom Seaver has the better career line of the two, leading 6 of the 8 scored categories on this page (8 further counting totals are shown but not scored). Bob Gibson played 1959–1975 as a pitcher; Tom Seaver played 1967–1986 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
Bob Gibson (1959–1975) and Tom Seaver (1967–1986) — they debuted in the 1950s and the 1960s respectively and share 9 seasons. Bob Gibson finished with 251 wins and 3,117 strikeouts; Tom Seaver finished with 311 wins and 3,640 strikeouts. The table below sets out their careers line by line.
Quick answer
- Who leads the career comparison? Tom Seaver, in 6 of the 8 scored categories.
- Who had the better ERA? Tom Seaver, with 2.86 to Bob Gibson's 2.91.
- Who won more games? Tom Seaver, with 311 to Bob Gibson's 251.
- Who recorded more strikeouts? Tom Seaver, with 3,640 to Bob Gibson's 3,117.
- Who had the better WHIP? Tom Seaver, with 1.12 to Bob Gibson's 1.19.
- How many innings did each pitch? Bob Gibson 3,884.1, Tom Seaver 4,782.2.
- Who threw more shutouts? Tom Seaver, with 61 to Bob Gibson's 56.
Bob Gibson
Tom Seaver
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. 8 of the 16 lines below are scored; the other 8 are shown but not scored. Games, starts and innings measure playing time, and losses, walks and hits allowed track how long someone pitched, so they are left unmarked, as is any line where both players are at zero. Rate stats are not era-adjusted, so read them against the run environment each player worked in, or use the PIV card below, which is adjusted.
| Statistic | Bob Gibson | Tom Seaver |
|---|---|---|
| Wins | 251 | Leads: 311 |
| Losses not scored | 174 | 205 |
| Games not scored | 528 | 656 |
| Games Started not scored | 482 | 647 |
| Complete Games | Leads: 255 | 231 |
| Shutouts | 56 | Leads: 61 |
| Saves not scored | 6 | 1 |
| Strikeouts | 3,117 | Leads: 3,640 |
| Walks not scored | 1,336 | 1,390 |
| Hits Allowed not scored | 3,279 | 3,971 |
| Home Runs Allowed not scored | 257 | 380 |
| Innings Pitched not scored | 3,884.1 | 4,782.2 |
| ERA | 2.91 | Leads: 2.86 |
| WHIP | 1.19 | Leads: 1.12 |
| K/9 | Leads: 7.22 | 6.85 |
| BB/9 | 3.10 | Leads: 2.62 |
PIV Comparison
By PIV (Player Impact Value), Tom Seaver leads Bob Gibson 79,192 to 69,720 — a longevity gap rather than a per-season one: Tom Seaver played 20 seasons to Bob Gibson's 17, while Bob Gibson carries the higher per-season figure (4,101 to 3,960). PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.
Peak Seasons
The best single seasons each player produced, ranked by ERA among qualified workloads (120+ innings).
Bob Gibson — top 3 seasons by ERA (lower is better)
Tom Seaver — top 3 seasons by ERA (lower is better)
Verdict
Tom Seaver leads 6 of the 8 scored categories on the head-to-head card: wins, shutouts, strikeouts, ERA, and others. Bob Gibson leads 2: complete games and strikeouts per nine. On the raw scoreboard the edge goes to Tom Seaver. PIV agrees: Tom Seaver grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Bob Gibson and Tom Seaver careers compare
Bob Gibson and Tom Seaver were active at the same time between 1967 and 1975. With 528 games against 656 across 17 and 20 PIV seasons, neither player's totals owe much to extra seasons. Bob Gibson's edges on the table are complete games (255 to 231) and strikeouts per nine (7.22 to 6.85). By rate, Bob Gibson struck out 7.22 and walked 3.10 per nine innings; Tom Seaver struck out 6.85 and walked 2.62. Both had the same role: Bob Gibson was mainly a starter (482 starts in 528 games); Tom Seaver was mainly a starter (647 starts in 656 games). In WHIP, Tom Seaver's 1.12 beats Bob Gibson's 1.19.
Bob Gibson vs Tom Seaver: Frequently Asked Questions
- Who was better, Bob Gibson or Tom Seaver?
- By the career statistics compared on this page, Tom Seaver leads Bob Gibson in 6 of the 8 scored categories.
- Who had the better ERA?
- Tom Seaver, with 2.86 to Bob Gibson's 2.91.
- Who won more games?
- Tom Seaver, with 311 to Bob Gibson's 251.
- Who recorded more strikeouts?
- Tom Seaver, with 3,640 to Bob Gibson's 3,117.
- Who had the better WHIP?
- Tom Seaver, with 1.12 to Bob Gibson's 1.19.