Walter Johnson vs Warren Spahn: Career Stats Comparison

Walter Johnson has the better career line of the two, leading 12 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Walter Johnson played 1907–1927 as a pitcher; Warren Spahn played 1942–1965 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

Walter Johnson (1907–1927) and Warren Spahn (1942–1965) — breaking in during the 1900s and the 1940s respectively, so they pitched against very different hitting environments. Walter Johnson finished with 417 wins and 3,509 strikeouts; Warren Spahn finished with 363 wins and 2,583 strikeouts. The numbers below run them through identical career and rate-stat lenses.

Quick answer

  • Who had the better ERA? Walter Johnson, with 2.17 to Warren Spahn's 3.09.
  • Who won more games? Walter Johnson, with 417 to Warren Spahn's 363.
  • Who recorded more strikeouts? Walter Johnson, with 3,509 to Warren Spahn's 2,583.
  • Who had the better WHIP? Walter Johnson, with 1.06 to Warren Spahn's 1.19.
  • Who pitched more innings? Walter Johnson, with 5,914.2 to Warren Spahn's 5,243.2.
  • Who threw more shutouts? Walter Johnson, with 110 to Warren Spahn's 63.
  • Who has the higher career Pitcher PIV? Walter Johnson, with 124,021 career Pitcher PIV to Warren Spahn's 63,558.
Leads Walter Johnson 12 of 12 scored categories
Pitcher PIV edge Walter Johnson +60,462
Read the verdict ↓

Walter Johnson

Pitcher · 1907–1927
Wins
417
Losses
279
Strikeouts
3,509
ERA
2.17
WHIP
1.06
IP
5,914.2
View Walter Johnson's full profile →

Warren Spahn

Pitcher · 1942–1965
Wins
363
Losses
245
Strikeouts
2,583
ERA
3.09
WHIP
1.19
IP
5,243.2
View Warren Spahn'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, and the 1900s and the 1940s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.

Walter Johnson vs Warren Spahn: Career Stats Comparison — Career Stats Side-by-Side
Statistic Walter Johnson Warren Spahn
Wins Leads: 417 363
Losses not scored 279 245
Games Leads: 802 750
Games Started Leads: 666 665
Complete Games Leads: 531 382
Shutouts Leads: 110 63
Saves Leads: 34 29
Strikeouts Leads: 3,509 2,583
Walks not scored 1,363 1,434
Hits Allowed not scored 4,913 4,830
Home Runs Allowed not scored 97 434
Innings Pitched Leads: 5,914.2 5,243.2
ERA Leads: 2.17 3.09
WHIP Leads: 1.06 1.19
K/9 Leads: 5.34 4.43
BB/9 Leads: 2.07 2.46

PIV Comparison through 2025

By PIV (Player Impact Value), Walter Johnson outpaces Warren Spahn 124,021 to 63,558 — driven by per-season impact — 5,906 PIV per season to 2,889 — rather than by longevity, since Walter Johnson played 21 seasons to Warren Spahn's 22. 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.

Walter Johnson
124,021
Career Pitcher PIV · 5,906 per season (21 seasons)
Warren Spahn
63,558
Career Pitcher PIV · 2,889 per season (22 seasons)

How PIV is calculated →

Peak Seasons

The best single seasons each player produced, ranked by ERA among qualified workloads (120+ innings).

Walter Johnson — top 3 seasons by ERA (lower is better)

19131.14 ERA36-7, 243 K in 346 IP
19181.27 ERA23-13, 162 K in 326 IP
19101.36 ERA25-17, 313 K in 370 IP

Warren Spahn — top 3 seasons by ERA (lower is better)

19532.10 ERA23-7, 148 K in 265 IP
19472.33 ERA21-10, 123 K in 289 IP
19632.60 ERA23-7, 102 K in 259 IP

Verdict

On the head-to-head card, Walter Johnson leads in wins, strikeouts, ERA, and WHIP, while Warren Spahn owns no headline categories. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Walter Johnson. PIV agrees: Walter Johnson grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.

Related Matchups

How the Walter Johnson and Warren Spahn careers compare

No season is shared: Walter Johnson played 1907–1927, Warren Spahn 1942–1965. The two careers are close in length, 802 games for Walter Johnson and 750 for Warren Spahn across 21 and 22 PIV seasons, so the totals compare on fairly even terms. Walter Johnson leads every scored row of the table. The per-nine rows read 5.34 strikeouts and 2.07 walks for Walter Johnson, 4.43 and 2.46 for Warren Spahn. Walter Johnson was mainly a starter (666 starts in 802 games), and Warren Spahn was mainly a starter (665 starts in 750 games). Walter Johnson allowed fewer baserunners, a 1.06 WHIP to Warren Spahn's 1.19.

Walter Johnson vs Warren Spahn: Frequently Asked Questions

Who was better, Walter Johnson or Warren Spahn?
By the career statistics compared on this page, Walter Johnson leads Warren Spahn in 12 of the 12 scored categories.
Who had the better ERA?
Walter Johnson, with 2.17 to Warren Spahn's 3.09.
Who won more games?
Walter Johnson, with 417 to Warren Spahn's 363.
Who recorded more strikeouts?
Walter Johnson, with 3,509 to Warren Spahn's 2,583.
Who had the better WHIP?
Walter Johnson, with 1.06 to Warren Spahn's 1.19.

See These Players in Another Era