Babe Ruth had an ERA of 2.28 in his career.

Interpreted as:

Babe Ruth earned run average in his career

	NAME	ERA	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Babe Ruth B. Ruth	3.91	1914	BSA	4	2	1	.667	3	3	1	0	0	23.0	21	10	12	1	7	0	0	96	0	1.17	2.74	0.43	0.39	3.1	7.3	1.22	.235	4.70	146	3.65	132	8.22	-2.3
2	Babe Ruth B. Ruth	2.44	1915	BSA	32	18	8	.692	28	112	16	1	0	217.2	166	59	80	3	85	6	3	874	9	4.63	3.51	1.32	0.12	12.8	9.7	1.15	.244	3.31	85	2.81	97	6.86	1.8
3	Babe Ruth B. Ruth	1.75	1916	BSA	44	23	12	.657	40	170	23	9	1	323.2	230	63	83	0	118	8	3	1,272	3	4.73	3.28	1.44	0.00	13.4	9.3	1.08	.236	2.31	65	2.43	90	6.40	8.8
4	Babe Ruth B. Ruth	2.01	1917	BSA	41	24	13	.649	38	128	35	6	2	326.1	244	73	93	2	108	11	3	1,277	5	3.53	2.98	1.19	0.06	10.0	8.5	1.08	.235	2.56	80	2.65	100	6.73	-2
5	Babe Ruth B. Ruth	2.22	1918	BSA	20	13	7	.650	19	40	18	1	0	166.1	125	41	51	1	49	2	0	660	3	2.16	2.65	0.82	0.05	6.1	7.4	1.05	.218	2.76	84	2.75	102	6.76	-1.8
6	Babe Ruth B. Ruth	2.97	1919	BSA	17	9	5	.643	15	30	12	0	1	133.1	148	44	59	2	58	2	2	570	5	2.03	3.91	0.52	0.14	5.3	10.2	1.55	.305	3.98	96	3.58	118	9.99	-8.8
7	Babe Ruth B. Ruth	4.50	1920	NYY	1	1	0	1.000	1	0	0	0	0	4.0	3	2	4	0	2	0	0	17	0	0.00	4.50	0.00	0.00	0.0	11.8	1.25	.200	9.00	119	4.25	117	6.75	-0.3
8	Babe Ruth B. Ruth	9.00	1921	NYY	2	2	0	1.000	1	2	0	0	0	9.0	14	9	10	1	9	0	1	49	0	2.00	9.00	0.22	1.00	4.1	18.4	2.56	.351	10.00	210	7.10	170	14.00	-2.9
9	Babe Ruth B. Ruth		1922	NYY
10	Babe Ruth B. Ruth		1923	NYY
11	Babe Ruth B. Ruth		1924	NYY
12	Babe Ruth B. Ruth		1925	NYY
13	Babe Ruth B. Ruth		1926	NYY
14	Babe Ruth B. Ruth		1927	NYY
15	Babe Ruth B. Ruth		1928	NYY
16	Babe Ruth B. Ruth		1929	NYY
17	Babe Ruth B. Ruth	3.00	1930	NYY	1	1	0	1.000	1	3	1	0	0	9.0	11	3	3	0	2	0	0	39	0	3.00	2.00	1.50	0.00	7.7	5.1	1.44	.324	3.00	68	3.50	78	11.00	1
18	Babe Ruth B. Ruth		1931	NYY
19	Babe Ruth B. Ruth		1932	NYY
20	Babe Ruth B. Ruth	5.00	1933	NYY	1	1	0	1.000	1	0	1	0	0	9.0	12	5	5	0	3	0	0	42	0	0.00	3.00	0.00	0.00	0.0	7.1	1.67	.308	5.00	124	3.80	100	12.00	0
21	Babe Ruth B. Ruth		1934	NYY
22	Babe Ruth B. Ruth		1935	BSN
	Total	2.28			163	94	46	.671	147	488	107	17	4	1221.1	974	309	400	10	441	29	12	4,896	25	3.60	3.25	1.11	0.07	10.0	9.0	1.16	.245	2.95	82	2.81	100	7.18	-6.6