Jim Bunning vs Sandy Koufax: Career Stats Comparison

Jim Bunning has the better career line of the two, leading 8 of the 11 statistical categories compared on this page. Jim Bunning played 1955–1971 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

Jim Bunning (1955–1971) and Sandy Koufax (1955–1966) — both came up during the 1950s, so the matchup is a direct one. Jim Bunning compiled 224 wins and 2,855 strikeouts; Sandy Koufax put up 165 wins and 2,396 strikeouts. The numbers below run them through identical career and rate-stat lenses.

Quick answer

  • Who had the better ERA? Sandy Koufax, with 2.76 to Jim Bunning's 3.27.
  • Who won more games? Jim Bunning, with 224 to Sandy Koufax's 165.
  • Who recorded more strikeouts? Jim Bunning, with 2,855 to Sandy Koufax's 2,396.
  • Who had the better WHIP? Sandy Koufax, with 1.11 to Jim Bunning's 1.18.
  • Who pitched more innings? Jim Bunning, with 3,760 to Sandy Koufax's 2,324.
  • Who threw more shutouts? Neither — both are at 40.
  • Who has the higher career Pitcher PIV? Sandy Koufax, with 63,020 career Pitcher PIV to Jim Bunning's 44,929.
Leads Jim Bunning 8 of 11 awarded categories
Pitcher PIV edge Sandy Koufax +18,091
Read the verdict ↓

Jim Bunning

Pitcher · 1955–1971
Wins
224
Losses
184
Strikeouts
2,855
ERA
3.27
WHIP
1.18
IP
3,760
View Jim Bunning's full profile →

Sandy Koufax

Pitcher · 1955–1966
Wins
165
Losses
87
Strikeouts
2,396
ERA
2.76
WHIP
1.11
IP
2,324
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. 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: compare them with the era in mind, or use the PIV card below, which is.

Jim Bunning vs Sandy Koufax: Career Stats Comparison — Career Stats Side-by-Side
Statistic Jim Bunning Sandy Koufax
Wins Leads: 224 165
Losses 184 87
Games Leads: 591 397
Games Started Leads: 519 314
Complete Games Leads: 151 137
Shutouts 40 40
Saves Leads: 16 9
Strikeouts Leads: 2,855 2,396
Walks 1,000 817
Hits Allowed 3,433 1,754
Home Runs Allowed 372 204
Innings Pitched Leads: 3,760 2,324
ERA 3.27 Leads: 2.76
WHIP 1.18 Leads: 1.11
K/9 6.83 Leads: 9.28
BB/9 Leads: 2.39 3.16

PIV Comparison

By PIV (Player Impact Value), Sandy Koufax outpaces Jim Bunning 63,020 to 44,929 — a gap driven primarily by per-season impact (5,252 vs 2,496 per year). PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.

Jim Bunning
44,929
Career Pitcher PIV · 2,496 per season (18 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).

Jim Bunning — top 3 seasons by ERA (lower is better)

19672.29 ERA17-15, 253 K in 302 IP
19662.41 ERA19-14, 252 K in 314 IP
19652.60 ERA19-9, 268 K in 291 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

On the head-to-head card, Sandy Koufax leads in ERA, WHIP, and K/9, while Jim Bunning owns wins, strikeouts, and innings pitched. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Sandy Koufax. PIV agrees: Sandy Koufax grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.

Related Matchups

Jim Bunning vs Sandy Koufax: Frequently Asked Questions

Who was better, Jim Bunning or Sandy Koufax?
By the career statistics compared on this page, Jim Bunning leads Sandy Koufax in 8 of 11 categories.
Who had the better ERA?
Sandy Koufax, with 2.76 to Jim Bunning's 3.27.
Who won more games?
Jim Bunning, with 224 to Sandy Koufax's 165.
Who recorded more strikeouts?
Jim Bunning, with 2,855 to Sandy Koufax's 2,396.
Who had the better WHIP?
Sandy Koufax, with 1.11 to Jim Bunning's 1.18.

See These Players in Another Era