Bob Gibson career ERA

• Best season on file: 1.12 in 1968.
• Most recent: 5.04 in 1975.

Average of 17 regular seasons, 1959 through 1975. Figures come from ESPN's box scores and were last read on September 22, 2026.

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Bob Gibson career ERA, 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	STL	13	3	5	3.33	75.2	48	39	1.53	0
1960	STL	27	3	6	5.61	86.2	69	48	1.67	0
1961	STL	35	13	12	3.24	211.1	166	119	1.44	1
1962	STL	32	15	13	2.85	233.2	208	95	1.15	1
1963	STL	36	18	9	3.39	254.2	204	96	1.26	0
1964	STL	40	19	12	3.01	287.1	245	86	1.17	1
1965	STL	38	20	12	3.07	299.0	270	103	1.16	1
1966	STL	35	21	12	2.44	280.1	225	78	1.03	0
1967	STL	24	13	7	2.98	175.1	147	40	1.09	0
1968	STL	34	22	9	1.12	304.2	268	62	0.85	0
1969	STL	35	20	13	2.18	314.0	269	95	1.10	0
1970	STL	34	23	7	3.12	294.0	274	88	1.19	0
1971	STL	31	16	13	3.04	245.2	185	76	1.18	0
1972	STL	34	19	11	2.46	278.0	208	88	1.13	0
1973	STL	25	12	10	2.77	195.0	142	57	1.11	0
1974	STL	33	11	13	3.83	240.0	129	104	1.42	0
1975	STL	22	3	10	5.04	109.0	60	62	1.67	2

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