Jim Kaat vs Gaylord Perry: Career Stats Comparison

Gaylord Perry has the better career line of the two, leading 7 of the 8 scored categories on this page (8 further counting totals are shown but not scored). Jim Kaat played 1959–1983 as a pitcher; Gaylord Perry played 1962–1983 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

Jim Kaat (1959–1983) and Gaylord Perry (1962–1983) — they debuted in the 1950s and the 1960s respectively and share 22 seasons. Jim Kaat finished with 283 wins and 2,461 strikeouts; Gaylord Perry finished with 314 wins and 3,534 strikeouts. The table below sets out their careers line by line.

Quick answer

  • Who leads the career comparison? Gaylord Perry, in 7 of the 8 scored categories.
  • Who had the better ERA? Gaylord Perry, with 3.11 to Jim Kaat's 3.45.
  • Who won more games? Gaylord Perry, with 314 to Jim Kaat's 283.
  • Who recorded more strikeouts? Gaylord Perry, with 3,534 to Jim Kaat's 2,461.
  • Who had the better WHIP? Gaylord Perry, with 1.18 to Jim Kaat's 1.26.
  • How many innings did each pitch? Jim Kaat 4,530.1, Gaylord Perry 5,350.1.
  • Who threw more shutouts? Gaylord Perry, with 53 to Jim Kaat's 31.
Leads Gaylord Perry 7 of 8 scored categories
Pitcher PIV edge Gaylord Perry +51,520
Read the verdict ↓

Jim Kaat

Pitcher · 1959–1983
Wins
283
Losses
237
Strikeouts
2,461
ERA
3.45
WHIP
1.26
IP
4,530.1
View Jim Kaat's full profile →

Gaylord Perry

Pitcher · 1962–1983
Wins
314
Losses
265
Strikeouts
3,534
ERA
3.11
WHIP
1.18
IP
5,350.1
View Gaylord Perry'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. 8 of the 16 lines below are scored; the other 8 are shown but not scored. Games, starts and innings measure playing time, and losses, walks and hits allowed track how long someone pitched, so they are left unmarked, as is any line where both players are at zero. 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.

Jim Kaat vs Gaylord Perry: Career Stats Comparison — Career Stats Side-by-Side
Statistic Jim Kaat Gaylord Perry
Wins 283 Leads: 314
Losses not scored 237 265
Games not scored 898 777
Games Started not scored 625 690
Complete Games 180 Leads: 303
Shutouts 31 Leads: 53
Saves not scored 18 11
Strikeouts 2,461 Leads: 3,534
Walks not scored 1,083 1,379
Hits Allowed not scored 4,620 4,938
Home Runs Allowed not scored 395 399
Innings Pitched not scored 4,530.1 5,350.1
ERA 3.45 Leads: 3.11
WHIP 1.26 Leads: 1.18
K/9 4.89 Leads: 5.94
BB/9 Leads: 2.15 2.32

PIV Comparison

By PIV (Player Impact Value), Gaylord Perry outpaces Jim Kaat 78,312 to 26,792 — driven by per-season impact — 3,560 PIV per season to 1,072 — rather than by longevity, since Gaylord Perry played 22 seasons to Jim Kaat's 25. PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.

Jim Kaat
26,792
Career Pitcher PIV · 1,072 per season (25 seasons)
Gaylord Perry
78,312
Career Pitcher PIV · 3,560 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).

Jim Kaat — top 3 seasons by ERA (lower is better)

19662.75 ERA25-13, 205 K in 304 IP
19652.83 ERA18-11, 154 K in 264 IP
19742.92 ERA21-13, 142 K in 277 IP

Gaylord Perry — top 3 seasons by ERA (lower is better)

19721.92 ERA24-16, 234 K in 342 IP
19682.44 ERA16-15, 173 K in 291 IP
19692.49 ERA19-14, 233 K in 325 IP

Verdict

Gaylord Perry leads 7 of the 8 scored categories on the head-to-head card: wins, complete games, shutouts, strikeouts, and others. Jim Kaat leads 1: walks per nine. On the raw scoreboard the edge goes to Gaylord Perry. PIV agrees: Gaylord Perry grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.

Related Matchups

How the Jim Kaat and Gaylord Perry careers compare

From 1962 through 1983, Jim Kaat and Gaylord Perry were in the majors together. The two careers are close in length, 898 games for Jim Kaat and 777 for Gaylord Perry across 25 and 22 PIV seasons, so the totals compare on fairly even terms. Jim Kaat's edges on the table are walks per nine (2.15 to 2.32). By rate, Jim Kaat struck out 4.89 and walked 2.15 per nine innings; Gaylord Perry struck out 5.94 and walked 2.32. Their roles differ: Jim Kaat split time between starting and relief (625 starts in 898 games); Gaylord Perry was mainly a starter (690 starts in 777 games). In WHIP, Gaylord Perry's 1.18 beats Jim Kaat's 1.26.

Jim Kaat vs Gaylord Perry: Frequently Asked Questions

Who was better, Jim Kaat or Gaylord Perry?
By the career statistics compared on this page, Gaylord Perry leads Jim Kaat in 7 of the 8 scored categories.
Who had the better ERA?
Gaylord Perry, with 3.11 to Jim Kaat's 3.45.
Who won more games?
Gaylord Perry, with 314 to Jim Kaat's 283.
Who recorded more strikeouts?
Gaylord Perry, with 3,534 to Jim Kaat's 2,461.
Who had the better WHIP?
Gaylord Perry, with 1.18 to Jim Kaat's 1.26.

See These Players in Another Era