Ron Guidry vs Tom Seaver: Career Stats Comparison
Tom Seaver has the better career line of the two, leading 7 of the 8 scored categories on this page (8 further counting totals are shown but not scored). Ron Guidry played 1975–1988 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
Ron Guidry (1975–1988) and Tom Seaver (1967–1986) — they debuted in the 1970s and the 1960s respectively and share 12 seasons. Ron Guidry finished with 170 wins and 1,778 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 7 of the 8 scored categories.
- Who had the better ERA? Tom Seaver, with 2.86 to Ron Guidry's 3.29.
- Who won more games? Tom Seaver, with 311 to Ron Guidry's 170.
- Who recorded more strikeouts? Tom Seaver, with 3,640 to Ron Guidry's 1,778.
- Who had the better WHIP? Tom Seaver, with 1.12 to Ron Guidry's 1.18.
- How many innings did each pitch? Ron Guidry 2,392.0, Tom Seaver 4,782.2.
- Who threw more shutouts? Tom Seaver, with 61 to Ron Guidry's 26.
Ron Guidry
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 | Ron Guidry | Tom Seaver |
|---|---|---|
| Wins | 170 | Leads: 311 |
| Losses not scored | 91 | 205 |
| Games not scored | 368 | 656 |
| Games Started not scored | 323 | 647 |
| Complete Games | 95 | Leads: 231 |
| Shutouts | 26 | Leads: 61 |
| Saves not scored | 4 | 1 |
| Strikeouts | 1,778 | Leads: 3,640 |
| Walks not scored | 633 | 1,390 |
| Hits Allowed not scored | 2,198 | 3,971 |
| Home Runs Allowed not scored | 226 | 380 |
| Innings Pitched not scored | 2,392.0 | 4,782.2 |
| ERA | 3.29 | Leads: 2.86 |
| WHIP | 1.18 | Leads: 1.12 |
| K/9 | 6.69 | Leads: 6.85 |
| BB/9 | Leads: 2.38 | 2.62 |
PIV Comparison
By PIV (Player Impact Value), Tom Seaver outpaces Ron Guidry 79,192 to 37,878 — driven by both sides of the ledger: 3,960 PIV per season to 2,706, across 20 seasons to 14. 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).
Ron Guidry — top 3 seasons by ERA (lower is better)
Tom Seaver — top 3 seasons by ERA (lower is better)
Verdict
Tom Seaver leads 7 of the 8 scored categories on the head-to-head card: wins, complete games, shutouts, strikeouts, and others. Ron Guidry leads 1: walks 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 Ron Guidry and Tom Seaver careers compare
The careers of Ron Guidry (1975–1988) and Tom Seaver (1967–1986) overlapped from 1975 to 1986, so for those seasons they faced the same league conditions. Tom Seaver has the far longer record, 656 games against 368 across 14 and 20 PIV seasons, which inflates every career total. Ron Guidry's edges on the table are walks per nine (2.38 to 2.62). By rate, Ron Guidry struck out 6.69 and walked 2.38 per nine innings; Tom Seaver struck out 6.85 and walked 2.62. Both had the same role: Ron Guidry was mainly a starter (323 starts in 368 games); Tom Seaver was mainly a starter (647 starts in 656 games).
Ron Guidry vs Tom Seaver: Frequently Asked Questions
- Who was better, Ron Guidry or Tom Seaver?
- By the career statistics compared on this page, Tom Seaver leads Ron Guidry in 7 of the 8 scored categories.
- Who had the better ERA?
- Tom Seaver, with 2.86 to Ron Guidry's 3.29.
- Who won more games?
- Tom Seaver, with 311 to Ron Guidry's 170.
- Who recorded more strikeouts?
- Tom Seaver, with 3,640 to Ron Guidry's 1,778.
- Who had the better WHIP?
- Tom Seaver, with 1.12 to Ron Guidry's 1.18.