Bob Gibson vs Sandy Koufax: Career Stats Comparison

Bob Gibson has the better career line of the two, leading 5 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; Sandy Koufax played 1955–1966 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 Sandy Koufax (1955–1966) — both debuted in the 1950s. Bob Gibson finished with 251 wins and 3,117 strikeouts; Sandy Koufax finished with 165 wins and 2,396 strikeouts. The table below sets out their careers line by line.

Quick answer

  • Who leads the career comparison? Bob Gibson, in 5 of the 8 scored categories.
  • Who had the better ERA? Sandy Koufax, with 2.76 to Bob Gibson's 2.91.
  • Who won more games? Bob Gibson, with 251 to Sandy Koufax's 165.
  • Who recorded more strikeouts? Bob Gibson, with 3,117 to Sandy Koufax's 2,396.
  • Who had the better WHIP? Sandy Koufax, with 1.11 to Bob Gibson's 1.19.
  • How many innings did each pitch? Bob Gibson 3,884.1, Sandy Koufax 2,324.1.
  • Who threw more shutouts? Bob Gibson, with 56 to Sandy Koufax's 40.
Leads Bob Gibson 5 of 8 scored categories
Pitcher PIV edge Bob Gibson +6,700
Read the verdict ↓

Bob Gibson

Pitcher · 1959–1975
Wins
251
Losses
174
Strikeouts
3,117
ERA
2.91
WHIP
1.19
IP
3,884.1
View Bob Gibson's full profile →

Sandy Koufax

Pitcher · 1955–1966
Wins
165
Losses
87
Strikeouts
2,396
ERA
2.76
WHIP
1.11
IP
2,324.1
View Sandy Koufax's full profile →

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.

Bob Gibson vs Sandy Koufax: Career Stats Comparison — Career Stats Side-by-Side
Statistic Bob Gibson Sandy Koufax
Wins Leads: 251 165
Losses not scored 174 87
Games not scored 528 397
Games Started not scored 482 314
Complete Games Leads: 255 137
Shutouts Leads: 56 40
Saves not scored 6 9
Strikeouts Leads: 3,117 2,396
Walks not scored 1,336 817
Hits Allowed not scored 3,279 1,754
Home Runs Allowed not scored 257 204
Innings Pitched not scored 3,884.1 2,324.1
ERA 2.91 Leads: 2.76
WHIP 1.19 Leads: 1.11
K/9 7.22 Leads: 9.28
BB/9 Leads: 3.10 3.16

PIV Comparison

By PIV (Player Impact Value), Bob Gibson leads Sandy Koufax 69,720 to 63,020 — a longevity gap rather than a per-season one: Bob Gibson played 17 seasons to Sandy Koufax's 12, while Sandy Koufax carries the higher per-season figure (5,252 to 4,101). PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.

Bob Gibson
69,720
Career Pitcher PIV · 4,101 per season (17 seasons)
Sandy Koufax
63,020
Career Pitcher PIV · 5,252 per season (12 seasons)

How PIV is calculated →

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)

19681.12 ERA22-9, 268 K in 304 IP
19692.18 ERA20-13, 269 K in 314 IP
19662.44 ERA21-12, 225 K in 280 IP

Sandy Koufax — top 3 seasons by ERA (lower is better)

19661.73 ERA27-9, 317 K in 323 IP
19641.74 ERA19-5, 223 K in 223 IP
19631.88 ERA25-5, 306 K in 311 IP

Verdict

Bob Gibson leads 5 of the 8 scored categories on the head-to-head card: wins, complete games, shutouts, strikeouts, and others. Sandy Koufax leads 3: ERA, WHIP, and strikeouts per nine. On the raw scoreboard the edge goes to Bob Gibson. PIV agrees: Bob Gibson 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 Sandy Koufax careers compare

Bob Gibson and Sandy Koufax were active at the same time between 1959 and 1966. With 528 games against 397 across 17 and 12 PIV seasons, neither player's totals owe much to extra seasons. Sandy Koufax's edges on the table are ERA (2.76 to 2.91), WHIP (1.11 to 1.19), and strikeouts per nine (9.28 to 7.22). The per-nine rows read 7.22 strikeouts and 3.10 walks for Bob Gibson, 9.28 and 3.16 for Sandy Koufax. Bob Gibson was mainly a starter (482 starts in 528 games), and Sandy Koufax was mainly a starter (314 starts in 397 games). In WHIP, Sandy Koufax's 1.11 beats Bob Gibson's 1.19.

Bob Gibson vs Sandy Koufax: Frequently Asked Questions

Who was better, Bob Gibson or Sandy Koufax?
By the career statistics compared on this page, Bob Gibson leads Sandy Koufax in 5 of the 8 scored categories.
Who had the better ERA?
Sandy Koufax, with 2.76 to Bob Gibson's 2.91.
Who won more games?
Bob Gibson, with 251 to Sandy Koufax's 165.
Who recorded more strikeouts?
Bob Gibson, with 3,117 to Sandy Koufax's 2,396.
Who had the better WHIP?
Sandy Koufax, with 1.11 to Bob Gibson's 1.19.

See These Players in Another Era