Randy Johnson vs Sandy Koufax: Career Stats Comparison
Randy Johnson and Sandy Koufax are close to even, splitting the 12 scored categories on this page 6–6 (4 further counting totals are shown but not scored). Randy Johnson played 1988–2009 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
Randy Johnson (1988–2009) and Sandy Koufax (1955–1966) — breaking in during the 1980s and the 1950s respectively, so they pitched against very different hitting environments. Randy Johnson finished with 303 wins and 4,875 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 Randy Johnson's 3.29.
- Who won more games? Randy Johnson, with 303 to Sandy Koufax's 165.
- Who recorded more strikeouts? Randy Johnson, with 4,875 to Sandy Koufax's 2,396.
- Who had the better WHIP? Sandy Koufax, with 1.11 to Randy Johnson's 1.17.
- Who pitched more innings? Randy Johnson, with 4,135.1 to Sandy Koufax's 2,324.1.
- Who threw more shutouts? Sandy Koufax, with 40 to Randy Johnson's 37.
- Who has the higher career Pitcher PIV? Randy Johnson, with 122,530 career Pitcher PIV to Sandy Koufax's 63,020.
Randy Johnson
Sandy Koufax
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 1980s and the 1950s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
| Statistic | Randy Johnson | Sandy Koufax |
|---|---|---|
| Wins | Leads: 303 | 165 |
| Losses not scored | 166 | 87 |
| Games | Leads: 618 | 397 |
| Games Started | Leads: 603 | 314 |
| Complete Games | 100 | Leads: 137 |
| Shutouts | 37 | Leads: 40 |
| Saves | 2 | Leads: 9 |
| Strikeouts | Leads: 4,875 | 2,396 |
| Walks not scored | 1,497 | 817 |
| Hits Allowed not scored | 3,346 | 1,754 |
| Home Runs Allowed not scored | 411 | 204 |
| Innings Pitched | Leads: 4,135.1 | 2,324.1 |
| ERA | 3.29 | Leads: 2.76 |
| WHIP | 1.17 | Leads: 1.11 |
| K/9 | Leads: 10.61 | 9.28 |
| BB/9 | 3.26 | Leads: 3.16 |
PIV Comparison through 2025
By PIV (Player Impact Value), Randy Johnson outpaces Sandy Koufax 122,530 to 63,020 — a longevity gap rather than a per-season one: Randy Johnson played 24 seasons to Sandy Koufax's 12, while Sandy Koufax carries the higher per-season figure (5,252 to 5,105). 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).
Randy Johnson — top 3 seasons by ERA (lower is better)
Sandy Koufax — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Randy Johnson leads in wins, strikeouts, K/9, and innings pitched, while Sandy Koufax owns ERA and WHIP. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Randy Johnson. PIV agrees: Randy Johnson grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Randy Johnson and Sandy Koufax careers compare
The two careers never overlapped: Sandy Koufax's ended in 1966, and Randy Johnson debuted in 1988. Randy Johnson has the far longer record, 618 games against 397 across 24 and 12 PIV seasons, which inflates every career total. The per-nine rows read 10.61 strikeouts and 3.26 walks for Randy Johnson, 9.28 and 3.16 for Sandy Koufax. Randy Johnson was mainly a starter (603 starts in 618 games), and Sandy Koufax was mainly a starter (314 starts in 397 games). In WHIP, Sandy Koufax's 1.11 beats Randy Johnson's 1.17.
Randy Johnson vs Sandy Koufax: Frequently Asked Questions
- Who had the better ERA?
- Sandy Koufax, with 2.76 to Randy Johnson's 3.29.
- Who won more games?
- Randy Johnson, with 303 to Sandy Koufax's 165.
- Who recorded more strikeouts?
- Randy Johnson, with 4,875 to Sandy Koufax's 2,396.
- Who had the better WHIP?
- Sandy Koufax, with 1.11 to Randy Johnson's 1.17.