Sandy Koufax vs Fernando Valenzuela: Career Stats Comparison
Sandy Koufax has the better career line of the two, leading 8 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Sandy Koufax played 1955–1966 as a pitcher; Fernando Valenzuela played 1980–1997 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
Sandy Koufax (1955–1966) and Fernando Valenzuela (1980–1997) — breaking in during the 1950s and the 1980s respectively, so they pitched against very different hitting environments. Sandy Koufax finished with 165 wins and 2,396 strikeouts; Fernando Valenzuela finished with 173 wins and 2,074 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 Fernando Valenzuela's 3.54.
- Who won more games? Fernando Valenzuela, with 173 to Sandy Koufax's 165.
- Who recorded more strikeouts? Sandy Koufax, with 2,396 to Fernando Valenzuela's 2,074.
- Who had the better WHIP? Sandy Koufax, with 1.11 to Fernando Valenzuela's 1.32.
- Who pitched more innings? Fernando Valenzuela, with 2,930.0 to Sandy Koufax's 2,324.1.
- Who threw more shutouts? Sandy Koufax, with 40 to Fernando Valenzuela's 31.
- Who has the higher career Pitcher PIV? Sandy Koufax, with 63,020 career Pitcher PIV to Fernando Valenzuela's 30,102.
Sandy Koufax
Fernando Valenzuela
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, and the 1950s and the 1980s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Sandy Koufax | Fernando Valenzuela |
|---|---|---|
| Wins | 165 | Leads: 173 |
| Losses not scored | 87 | 153 |
| Games | 397 | Leads: 453 |
| Games Started | 314 | Leads: 424 |
| Complete Games | Leads: 137 | 113 |
| Shutouts | Leads: 40 | 31 |
| Saves | Leads: 9 | 2 |
| Strikeouts | Leads: 2,396 | 2,074 |
| Walks not scored | 817 | 1,151 |
| Hits Allowed not scored | 1,754 | 2,718 |
| Home Runs Allowed not scored | 204 | 226 |
| Innings Pitched | 2,324.1 | Leads: 2,930.0 |
| ERA | Leads: 2.76 | 3.54 |
| WHIP | Leads: 1.11 | 1.32 |
| K/9 | Leads: 9.28 | 6.37 |
| BB/9 | Leads: 3.16 | 3.54 |
PIV Comparison through 2025
By PIV (Player Impact Value), Sandy Koufax outpaces Fernando Valenzuela 63,020 to 30,102 — driven by per-season impact — 5,252 PIV per season to 1,672 — rather than by longevity, since Sandy Koufax played 12 seasons to Fernando Valenzuela's 18. 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.
Peak Seasons
The best single seasons each player produced, ranked by ERA among qualified workloads (120+ innings).
Sandy Koufax — top 3 seasons by ERA (lower is better)
Fernando Valenzuela — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Sandy Koufax leads in strikeouts, ERA, WHIP, and K/9, while Fernando Valenzuela owns wins 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
How the Sandy Koufax and Fernando Valenzuela careers compare
Sandy Koufax (1955–1966) was finished before Fernando Valenzuela (1980–1997) arrived, so they never shared a league. The two careers are close in length, 397 games for Sandy Koufax and 453 for Fernando Valenzuela across 12 and 18 PIV seasons, so the totals compare on fairly even terms. Where Fernando Valenzuela comes out ahead, it is in wins (173 to 165), games (453 to 397), and starts (424 to 314). The per-nine rows read 9.28 strikeouts and 3.16 walks for Sandy Koufax, 6.37 and 3.54 for Fernando Valenzuela. Both had the same role: Sandy Koufax was mainly a starter (314 starts in 397 games); Fernando Valenzuela was mainly a starter (424 starts in 453 games).
Sandy Koufax vs Fernando Valenzuela: Frequently Asked Questions
- Who was better, Sandy Koufax or Fernando Valenzuela?
- By the career statistics compared on this page, Sandy Koufax leads Fernando Valenzuela in 8 of the 12 scored categories.
- Who had the better ERA?
- Sandy Koufax, with 2.76 to Fernando Valenzuela's 3.54.
- Who won more games?
- Fernando Valenzuela, with 173 to Sandy Koufax's 165.
- Who recorded more strikeouts?
- Sandy Koufax, with 2,396 to Fernando Valenzuela's 2,074.
- Who had the better WHIP?
- Sandy Koufax, with 1.11 to Fernando Valenzuela's 1.32.