Walter Johnson vs Tom Seaver: Career Stats Comparison

Walter Johnson 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). Walter Johnson played 1907–1927 as a pitcher; Tom Seaver played 1967–1986 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 Tom Seaver (1967–1986) — breaking in during the 1900s and the 1960s respectively, so they pitched against very different hitting environments. Walter Johnson finished with 417 wins and 3,509 strikeouts; Tom Seaver finished with 311 wins and 3,640 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 Tom Seaver's 2.86.
  • Who won more games? Walter Johnson, with 417 to Tom Seaver's 311.
  • Who recorded more strikeouts? Tom Seaver, with 3,640 to Walter Johnson's 3,509.
  • Who had the better WHIP? Walter Johnson, with 1.06 to Tom Seaver's 1.12.
  • Who pitched more innings? Walter Johnson, with 5,914.2 to Tom Seaver's 4,782.2.
  • Who threw more shutouts? Walter Johnson, with 110 to Tom Seaver's 61.
  • Who has the higher career Pitcher PIV? Walter Johnson, with 124,021 career Pitcher PIV to Tom Seaver's 79,192.
Leads Walter Johnson 10 of 12 scored categories
Pitcher PIV edge Walter Johnson +44,828
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 →

Tom Seaver

Pitcher · 1967–1986
Wins
311
Losses
205
Strikeouts
3,640
ERA
2.86
WHIP
1.12
IP
4,782.2
View Tom Seaver'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 1960s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.

Walter Johnson vs Tom Seaver: Career Stats Comparison — Career Stats Side-by-Side
Statistic Walter Johnson Tom Seaver
Wins Leads: 417 311
Losses not scored 279 205
Games Leads: 802 656
Games Started Leads: 666 647
Complete Games Leads: 531 231
Shutouts Leads: 110 61
Saves Leads: 34 1
Strikeouts 3,509 Leads: 3,640
Walks not scored 1,363 1,390
Hits Allowed not scored 4,913 3,971
Home Runs Allowed not scored 97 380
Innings Pitched Leads: 5,914.2 4,782.2
ERA Leads: 2.17 2.86
WHIP Leads: 1.06 1.12
K/9 5.34 Leads: 6.85
BB/9 Leads: 2.07 2.62

PIV Comparison through 2025

By PIV (Player Impact Value), Walter Johnson outpaces Tom Seaver 124,021 to 79,192 — driven by per-season impact — 5,906 PIV per season to 3,600 — rather than by longevity, since Walter Johnson played 21 seasons to Tom Seaver'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)
Tom Seaver
79,192
Career Pitcher PIV · 3,600 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

Tom Seaver — top 3 seasons by ERA (lower is better)

19711.76 ERA20-10, 289 K in 286 IP
19732.08 ERA19-10, 251 K in 290 IP
19682.20 ERA16-12, 205 K in 277 IP

Verdict

On the head-to-head card, Walter Johnson leads in wins, ERA, WHIP, and innings pitched, while Tom Seaver owns strikeouts and K/9. 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 Tom Seaver careers compare

The two careers never overlapped: Walter Johnson's ended in 1927, and Tom Seaver debuted in 1967. The two careers are close in length, 802 games for Walter Johnson and 656 for Tom Seaver across 21 and 22 PIV seasons, so the totals compare on fairly even terms. Tom Seaver's edges on the table are strikeouts (3,640 to 3,509) and strikeouts per nine (6.85 to 5.34). By rate, Walter Johnson struck out 5.34 and walked 2.07 per nine innings; Tom Seaver struck out 6.85 and walked 2.62. Walter Johnson was mainly a starter (666 starts in 802 games), and Tom Seaver was mainly a starter (647 starts in 656 games).

Walter Johnson vs Tom Seaver: Frequently Asked Questions

Who was better, Walter Johnson or Tom Seaver?
By the career statistics compared on this page, Walter Johnson leads Tom Seaver in 10 of the 12 scored categories.
Who had the better ERA?
Walter Johnson, with 2.17 to Tom Seaver's 2.86.
Who won more games?
Walter Johnson, with 417 to Tom Seaver's 311.
Who recorded more strikeouts?
Tom Seaver, with 3,640 to Walter Johnson's 3,509.
Who had the better WHIP?
Walter Johnson, with 1.06 to Tom Seaver's 1.12.

See These Players in Another Era