Gene Conley vs Sandy Koufax: Career Stats Comparison

Sandy Koufax has the better career line of the two, leading 10 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Gene Conley played 1952–1963 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

Gene Conley (1952–1963) and Sandy Koufax (1955–1966) — both came up during the 1950s, so the matchup is a direct one. Gene Conley finished with 91 wins and 888 strikeouts; Sandy Koufax finished with 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 Gene Conley's 3.82.
  • Who won more games? Sandy Koufax, with 165 to Gene Conley's 91.
  • Who recorded more strikeouts? Sandy Koufax, with 2,396 to Gene Conley's 888.
  • Who had the better WHIP? Sandy Koufax, with 1.11 to Gene Conley's 1.33.
  • Who pitched more innings? Sandy Koufax, with 2,324.1 to Gene Conley's 1,588.2.
  • Who threw more shutouts? Sandy Koufax, with 40 to Gene Conley's 13.
  • Who has the higher career Pitcher PIV? Sandy Koufax, with 63,020 career Pitcher PIV to Gene Conley's 7,994.
Leads Sandy Koufax 10 of 12 scored categories (1 tied)
Pitcher PIV edge Sandy Koufax +55,026
Read the verdict ↓

Gene Conley

Pitcher · 1952–1963
Wins
91
Losses
96
Strikeouts
888
ERA
3.82
WHIP
1.33
IP
1,588.2
View Gene Conley'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. 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, so read them against the run environment each player worked in, or use the PIV card below, which is adjusted.

Gene Conley vs Sandy Koufax: Career Stats Comparison — Career Stats Side-by-Side
Statistic Gene Conley Sandy Koufax
Wins 91 Leads: 165
Losses not scored 96 87
Games 276 Leads: 397
Games Started 214 Leads: 314
Complete Games 69 Leads: 137
Shutouts 13 Leads: 40
Saves 9 9
Strikeouts 888 Leads: 2,396
Walks not scored 511 817
Hits Allowed not scored 1,606 1,754
Home Runs Allowed not scored 162 204
Innings Pitched 1,588.2 Leads: 2,324.1
ERA 3.82 Leads: 2.76
WHIP 1.33 Leads: 1.11
K/9 5.03 Leads: 9.28
BB/9 Leads: 2.89 3.16

PIV Comparison through 2025

By PIV (Player Impact Value), Sandy Koufax outpaces Gene Conley 63,020 to 7,994 — driven by both sides of the ledger: 5,252 PIV per season to 727, across 12 seasons to 11. 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.

Gene Conley
7,994
Career Pitcher PIV · 727 per season (11 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).

Gene Conley — top 3 seasons by ERA (lower is better)

19542.96 ERA14-9, 113 K in 194 IP
19593.00 ERA12-7, 102 K in 180 IP
19563.13 ERA8-9, 68 K in 158 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 wins, strikeouts, ERA, and WHIP, while Gene Conley owns no headline categories. 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

How the Gene Conley and Sandy Koufax careers compare

From 1955 through 1963, Gene Conley and Sandy Koufax were in the majors together. The two careers are close in length, 276 games for Gene Conley and 397 for Sandy Koufax across 11 and 12 PIV seasons, so the totals compare on fairly even terms. Gene Conley's edges on the table are walks per nine (2.89 to 3.16). By rate, Gene Conley struck out 5.03 and walked 2.89 per nine innings; Sandy Koufax struck out 9.28 and walked 3.16. Gene Conley was mainly a starter (214 starts in 276 games), and Sandy Koufax was mainly a starter (314 starts in 397 games). Sandy Koufax allowed fewer baserunners, a 1.11 WHIP to Gene Conley's 1.33.

Gene Conley vs Sandy Koufax: Frequently Asked Questions

Who was better, Gene Conley or Sandy Koufax?
By the career statistics compared on this page, Sandy Koufax leads Gene Conley in 10 of the 12 scored categories.
Who had the better ERA?
Sandy Koufax, with 2.76 to Gene Conley's 3.82.
Who won more games?
Sandy Koufax, with 165 to Gene Conley's 91.
Who recorded more strikeouts?
Sandy Koufax, with 2,396 to Gene Conley's 888.
Who had the better WHIP?
Sandy Koufax, with 1.11 to Gene Conley's 1.33.

See These Players in Another Era