Fergie Jenkins vs Jim Kaat: Career Stats Comparison

Fergie Jenkins (1965–1983) and Jim Kaat (1959–1983) — breaking in during the 1960s and the 1950s respectively, so they pitched against very different hitting environments. Fergie Jenkins compiled 284 wins and 3,192 strikeouts; Jim Kaat put up 283 wins and 2,461 strikeouts. The numbers below run them through identical career and rate-stat lenses.

Fergie Jenkins

Pitcher · 1965–1983
Wins
284
Losses
226
Strikeouts
3,192
ERA
3.34
WHIP
1.14
IP
4,500
View Fergie Jenkins's full profile →

Jim Kaat

Pitcher · 1959–1983
Wins
283
Losses
237
Strikeouts
2,461
ERA
3.45
WHIP
1.26
IP
4,530
View Jim Kaat'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. For pitchers, lower ERA, WHIP, and BB/9 lead; higher K/9 leads.

Statistic Fergie Jenkins Jim Kaat
Wins 284 283
Losses 226 237
Games 664 898
Games Started 594 625
Complete Games 267 180
Shutouts 49 31
Saves 7 18
Strikeouts 3,192 2,461
Walks 997 1,083
Hits Allowed 4,142 4,620
Home Runs Allowed 484 395
Innings Pitched 4,500 4,530
ERA 3.34 3.45
WHIP 1.14 1.26
K/9 6.38 4.89
BB/9 1.99 2.15

PIV Comparison

By PIV (Player Impact Value), Fergie Jenkins outpaces Jim Kaat 40,614 to 26,792 — a gap driven primarily by per-season impact (2,031 vs 957 per year). PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.

Fergie Jenkins
40,614
Career Pitcher PIV · 2,031 per season (20 seasons)
Jim Kaat
26,792
Career Pitcher PIV · 957 per season (28 seasons)

How PIV is calculated →

Peak Seasons

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

Fergie Jenkins — top 3 seasons by ERA (lower is better)

19682.63 ERA20-15, 260 K in 308 IP
19712.77 ERA24-13, 263 K in 325 IP
19672.80 ERA20-13, 236 K in 289 IP

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

Verdict

On the head-to-head card, Fergie Jenkins leads in wins, strikeouts, ERA, and WHIP, while Jim Kaat owns innings pitched. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Fergie Jenkins. PIV agrees: Fergie Jenkins grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.

Related Matchups

See These Players in Another Era