Larry Jackson career ERA

• Best season on file: 2.55 in 1963.
• Most recent: 2.77 in 1968.

Average of 14 regular seasons, 1955 through 1968. Figures come from ESPN's box scores and were last read on September 22, 2026.

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Larry Jackson 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.
1955	STL	37	9	14	4.31	177.1	88	72	1.47	2
1956	STL	51	2	2	4.11	85.1	50	45	1.41	9
1957	STL	41	15	9	3.47	210.1	96	57	1.20	1
1958	STL	49	13	13	3.68	198.0	124	51	1.32	8
1959	STL	40	14	13	3.30	256.0	145	64	1.31	0
1960	STL	43	18	13	3.48	282.0	171	70	1.23	0
1961	STL	33	14	11	3.75	211.0	113	56	1.23	0
1962	STL	36	16	11	3.75	252.1	112	64	1.31	0
1963	CHC	37	14	18	2.55	275.0	153	54	1.13	0
1964	CHC	40	24	11	3.14	297.2	148	58	1.09	0
1965	CHC	39	14	21	3.85	257.1	131	57	1.26	0
1966	CHC/PHI	38	15	15	3.32	255.0	112	62	1.25	0
1967	PHI	40	13	15	3.10	261.2	139	54	1.13	0
1968	PHI	34	13	17	2.77	243.2	127	60	1.19	0

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