Harvey Haddix career ERA

• Best season on file: 2.31 in 1964.
• Most recent: 3.48 in 1965.

Average of 14 regular seasons, 1952 through 1965. Figures come from ESPN's box scores and were last read on September 22, 2026.

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Harvey Haddix 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.
1952	STL	7	2	2	2.79	42.0	31	10	0.98	0
1953	STL	36	20	9	3.06	253.0	163	69	1.14	1
1954	STL	43	18	13	3.57	259.2	184	77	1.25	4
1955	STL	37	12	16	4.46	208.0	150	62	1.34	1
1956	STL/PHI	35	13	8	3.67	230.1	170	65	1.25	2
1957	PHI	27	10	13	4.06	170.2	136	39	1.26	0
1958	CIN	29	8	7	3.52	184.0	110	43	1.27	0
1959	PIT	31	12	12	3.13	224.1	149	49	1.06	0
1960	PIT	29	11	10	3.97	172.1	101	38	1.32	1
1961	PIT	29	10	6	4.10	156.0	99	41	1.28	0
1962	PIT	28	9	6	4.20	141.1	101	42	1.33	0
1963	PIT	49	3	4	3.34	70.0	70	20	1.24	1
1964	BAL	49	5	5	2.31	89.2	90	23	1.01	10
1965	BAL	24	3	2	3.48	33.2	21	23	1.60	1

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