Joe Bush career ERA

• Best season on file: 2.11 in 1918.
• Most recent: 5.09 in 1928.

Figures come from ESPN's box scores and were last read on September 23, 2026.

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Joe Bush 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.
1912	ATH	1	0	0	7.88	8.0	3	4	2.25	0
1913	ATH	39	15	6	3.82	200.1	81	66	1.32	3
1914	ATH	38	16	12	3.06	206.0	109	81	1.29	3
1915	ATH	25	5	15	4.14	145.2	89	89	1.55	0
1916	ATH	40	15	24	2.57	286.2	157	130	1.23	0
1917	ATH	37	11	17	2.47	233.1	121	111	1.36	2
1918	BOS	36	15	15	2.11	272.2	125	91	1.22	2
1919	BOS	3	0	0	5.00	9.0	3	4	1.67	0
1920	BOS	35	15	15	4.25	243.2	88	94	1.56	1
1921	BOS	37	16	9	3.50	254.1	96	93	1.33	1
1922	NYY	39	26	7	3.31	255.1	92	85	1.27	3
1923	NYY	37	19	15	3.43	275.2	125	117	1.38	0
1924	NYY	39	17	16	3.57	252.0	80	109	1.47	1
1925	BAL	33	14	14	5.09	208.2	63	91	1.54	0
1926	MIN/PIT	31	7	14	4.45	182.0	65	70	1.37	3
1927	PIT/SF	8	2	3	9.64	18.2	7	10	2.25	0
1928	ATH	11	2	1	5.09	35.1	15	18	1.61	1

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