Red Ruffing career ERA

• Best season on file: 1.77 in 1946.
• Most recent: 6.11 in 1947.

Average of 22 regular seasons, 1924 through 1947. Figures come from ESPN's box scores and were last read on September 22, 2026.

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Red Ruffing 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.
1924	BOS	8	0	0	6.65	23.0	10	9	1.65	0
1925	BOS	37	9	18	5.01	217.1	64	75	1.51	1
1926	BOS	37	6	15	4.39	166.0	58	68	1.43	2
1927	BOS	26	5	13	4.66	158.1	77	87	1.56	2
1928	BOS	42	10	25	3.89	289.1	118	96	1.38	2
1929	BOS	35	9	22	4.86	244.1	109	118	1.63	1
1930	BOS/NYY	38	15	8	4.38	221.2	131	68	1.35	1
1931	NYY	37	16	14	4.41	237.0	132	87	1.38	2
1932	NYY	35	18	7	3.09	259.0	190	115	1.29	2
1933	NYY	35	9	14	3.91	235.0	122	93	1.37	3
1934	NYY	36	19	11	3.93	256.1	149	104	1.31	0
1935	NYY	30	16	11	3.12	222.0	81	76	1.25	0
1936	NYY	33	20	12	3.85	271.0	102	90	1.34	0
1937	NYY	31	20	7	2.98	256.1	131	68	1.21	0
1938	NYY	31	21	7	3.31	247.1	127	82	1.33	0
1939	NYY	28	21	7	2.93	233.1	95	75	1.23	0
1940	NYY	30	15	12	3.38	226.0	97	76	1.30	0
1941	NYY	23	15	6	3.54	185.2	60	54	1.24	0
1942	NYY	24	14	7	3.21	193.2	80	41	1.16	0
1945	NYY	11	7	3	2.89	87.1	24	20	1.20	0
1946	NYY	8	5	1	1.77	61.0	19	23	0.98	0
1947	CHW	9	3	5	6.11	53.0	11	16	1.49	0

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