Robin Roberts career ERA

• Best season on file: 2.59 in 1952.
• Most recent: 4.82 in 1966.

Average of 19 regular seasons, 1948 through 1966. Figures come from ESPN's box scores and were last read on September 22, 2026.

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Robin Roberts 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.
1948	PHI	20	7	9	3.19	146.2	84	61	1.43	0
1949	PHI	43	15	15	3.69	226.2	95	75	1.34	4
1950	PHI	40	20	11	3.02	304.1	146	77	1.18	1
1951	PHI	44	21	15	3.03	315.0	127	64	1.10	2
1952	PHI	39	28	7	2.59	330.0	148	45	1.02	2
1953	PHI	44	23	16	2.75	346.2	198	61	1.11	2
1954	PHI	45	23	15	2.97	336.2	185	56	1.02	4
1955	PHI	41	23	14	3.28	305.0	160	53	1.13	3
1956	PHI	43	19	18	4.45	297.1	157	40	1.24	3
1957	PHI	39	10	22	4.07	249.2	128	43	1.16	2
1958	PHI	35	17	14	3.24	269.2	130	51	1.19	0
1959	PHI	35	15	17	4.27	257.1	137	35	1.17	0
1960	PHI	35	12	16	4.02	237.1	122	34	1.22	1
1961	PHI	26	1	10	5.85	117.0	54	23	1.51	0
1962	BAL	27	10	9	2.78	191.1	102	41	1.13	0
1963	BAL	35	14	13	3.33	251.1	124	40	1.07	0
1964	BAL	31	13	7	2.91	204.0	109	52	1.25	0
1965	BAL/HOU	30	10	9	2.78	190.2	97	30	1.05	0
1966	HOU/CHC	24	5	8	4.82	112.0	54	21	1.45	1

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