Jim Kaat ERA in 1981

• 11th-best of Jim Kaat's 25 seasons on file; the best is 2.06 in 1972.
• Down 0.54 from 3.94 in 1980.

Figures come from ESPN's box scores and were last read on September 22, 2026.

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Jim Kaat ERA in 1981, season by season

Season↓	Team↓	GP↓iGP: Games the player appeared in, however briefly.	W↓iW: Games in which this pitcher was credited with the win.	L↓iL: Games in which this pitcher was charged with the loss.	ERA↓iERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent.	IP↓iIP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs.	K↓iK: Batters this pitcher struck out.	BB↓iBB: Times the batter reached first base on four balls.	WHIP↓iWHIP: Walks and hits allowed per inning pitched — lower is better. Around 1.00 is elite.	SV↓iSV: Games finished by protecting a narrow lead to the last out.
1959	MIN	3	0	2	12.60	5.0	2	4	2.20	0
1960	MIN	13	1	5	5.58	50.0	25	31	1.58	0
1961	MIN	36	9	17	3.90	200.2	122	82	1.35	0
1962	MIN	39	18	14	3.14	269.0	173	75	1.18	1
1963	MIN	31	10	10	4.19	178.1	105	38	1.31	1
1964	MIN	36	17	11	3.22	243.0	171	60	1.20	1
1965	MIN	45	18	11	2.83	264.1	154	63	1.25	2
1966	MIN	41	25	13	2.75	304.2	205	55	1.07	0
1967	MIN	42	16	13	3.04	263.1	211	42	1.18	0
1968	MIN	30	14	12	2.94	208.0	130	40	1.12	0
1969	MIN	40	14	13	3.49	242.1	139	75	1.35	1
1970	MIN	45	14	10	3.56	230.1	120	58	1.31	0
1971	MIN	39	13	14	3.32	260.1	137	47	1.24	0
1972	MIN	15	10	2	2.06	113.1	64	20	1.01	0
1973	MIN/CHW	36	15	13	4.37	224.1	109	43	1.31	0
1974	CHW	42	21	13	2.92	277.1	142	63	1.18	0
1975	CHW	43	20	14	3.11	303.2	142	77	1.31	0
1976	PHI	38	12	14	3.48	227.2	83	32	1.20	0
1977	PHI	35	6	11	5.39	160.1	55	40	1.57	0
1978	PHI	26	8	5	4.10	140.1	48	32	1.30	0
1979	PHI/NYY	43	3	3	3.92	66.2	25	19	1.38	2
1980	NYY/STL	53	8	8	3.94	134.2	37	37	1.37	4
1981	STL	41	6	6	3.40	53.0	8	17	1.45	4
1982	STL	62	5	3	4.08	75.0	35	23	1.36	2
1983	STL	24	0	0	3.89	34.2	19	10	1.67	0

What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV