what is the percentage of teams that won when pitcher had better era

Doug Allison had an ERA of 1.80 in his career.

	NAME	ERA	W	L	W%	G	GS	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	GF	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Doug Allison D. Allison	1.80	0	0		1	0	0	0	0	0	5.0	11	1	5	0	1	1	26	0	0.00	1.80	0.00	0.00	0.0	3.8	2.40		9.00	81	3.14	140	19.80	-0.6
2	Fred Andrus F. Andrus	2.00	1	0	1.000	1	1	2	1	0	0	9.0	11	2	3	1	2	0	39	0	2.00	2.00	1.00	1.00	5.1	5.1	1.44		3.00	63	4.94	137	11.00	-1.1
3	Cap Anson C. Anson	4.50	0	1	.000	3	0	1	0	0	1	4.0	4	2	5	2	2	3	21	0	2.25	4.50	0.50	4.50	4.8	9.5	1.50		11.25	143	10.76	306	9.00	-3
4	Ross Barnes R. Barnes	20.25	0	0		1	0	0	0	0	0	1.1	7	3	8	0	0	0	13	0	0.00	0.00		0.00	0.0	0.0	5.25		54.00	844	2.23	93	47.25	0
5	Joe Battin J. Battin	3.52	0	0		3	0	1	0	0	0	7.2	12	3	6	0	2	2	38	1	1.17	2.35	0.50	0.00	2.6	5.3	1.83		7.04	127	3.58	122	14.09	-0.7
6	Joe Blong J. Blong	2.68	10	9	.526	26	21	51	17	0	0	191.1	205	57	121	0	39	5	827	29	2.40	1.83	1.31	0.00	6.2	4.7	1.28		5.69	104	2.90	113	9.64	-13
7	Tommy Bond T. Bond	2.25	193	115	.627	322	314	860	294	35	0	2779.2	2,857	695	1,339	32	178	11	11,386	120	2.78	0.58	4.83	0.10	7.6	1.6	1.09	.274	4.34	89	2.38	95	9.25	32.3
8	Amos Booth A. Booth	4.14	1	8	.111	15	9	18	6	0	0	95.2	136	44	93	1	13	5	449	7	1.69	1.22	1.38	0.09	4.0	2.9	1.56		8.75	163	2.95	112	12.79	-5.3
9	Eddie Booth E. Booth	10.80	0	0		1	0	0	0	0	0	5.0	16	6	10	0	0	1	34	0	0.00	0.00		0.00	0.0	0.0	3.20		18.00	483	2.23	100	28.80	-0.1
10	Joe Borden J. Borden	2.89	11	12	.478	29	24	34	16	2	1	218.1	257	70	155	4	51	6	983	21	1.40	2.10	0.67	0.16	3.5	5.2	1.41		6.39	126	2.86	125	10.59	-15
11	Foghorn Bradley F. Bradley	2.49	9	10	.474	22	21	16	16	1	1	173.1	201	48	116	1	16	1	779	7	0.83	0.83	1.00	0.05	2.1	2.1	1.25		6.02	109	2.40	105	10.44	-3
12	George Bradley G. Bradley	2.50	138	125	.525	287	265	611	245	28	2	2404.1	2,469	668	1,392	42	179	22	10,119	166	2.29	0.67	3.41	0.16	6.0	1.8	1.10		5.21	92	2.68	103	9.24	-36.8
13	Lew Brown L. Brown	27.00	0	0		2	0	0	0	0	1	2.0	6	6	11	0	5	1	18	2	0.00	22.50	0.00	0.00	0.0	27.8	5.50		49.50	1000	10.41	445	27.00	-1.8
14	John Cassidy J. Cassidy	5.00	1	1	.500	2	2	2	2	0	0	18.0	24	10	11	0	1	0	76	0	1.00	0.50	2.00	0.00	2.6	1.3	1.39		5.50	194	2.78	108	12.00	-0.9
15	Bobby Clack B. Clack	4.50	0	0		1	0	0	0	0	0	2.0	2	1	1	0	0	1	8	0	0.00	0.00		0.00	0.0	0.0	1.00		4.50	205	2.23	102	9.00	-0.1
16	Jim Clinton J. Clinton	6.00	0	1	.000	1	1	1	1	0	0	9.0	12	6	11	0	0	0	43	2	1.00	0.00		0.00	2.3	0.0	1.33		11.00	236	2.01	79	12.00	0.8
17	William Coon W. Coon	5.14	0	0		2	0	0	0	0	0	7.0	9	4	8	0	0	2	35	0	0.00	0.00		0.00	0.0	0.0	1.29		10.29	210	2.23	91	11.57	0.3
18	Candy Cummings C. Cummings	2.78	21	22	.488	43	43	37	40	5	0	371.2	434	115	241	2	27	0	1,622	22	0.90	0.65	1.37	0.05	2.3	1.7	1.24		5.84	108	2.58	101	10.51	-1.4
19	Dory Dean D. Dean	3.73	4	26	.133	30	30	22	26	0	0	262.2	397	109	268	1	24	1	1,257	17	0.75	0.82	0.92	0.03	1.8	1.9	1.60		9.18	170	2.39	109	13.60	-11.5
20	Jim Devlin J. Devlin	1.89	65	60	.520	129	129	263	127	9	0	1181.0	1,183	248	597	7	78	0	4,896	34	2.00	0.59	3.37	0.05	5.4	1.6	1.07		4.55	67	2.35	84	9.02	88.9
21	Bob Ferguson B. Ferguson	4.15	1	1	.500	4	2	1	2	0	0	26.0	40	12	17	0	2	2	117	0	0.35	0.69	0.50	0.00	0.9	1.7	1.62		5.88	159	3.01	116	13.85	-2
22	Cherokee Fisher C. Fisher	3.06	4	21	.160	29	25	31	23	0	0	238.1	308	81	218	6	6	4	1,085	7	1.17	0.23	5.17	0.23	2.9	0.6	1.32		8.23	139	2.39	109	11.63	-10.2
23	Charley Jones C. Jones	3.00	0	0		2	0	0	0	0	0	3.0	2	1	2	0	4	1	11	0	0.00	12.00	0.00	0.00	0.0	36.4	2.00	.286	6.00	71	7.28	180	6.00	-1.1
24	Lon Knight L. Knight	2.95	10	23	.303	38	33	16	28	0	0	305.0	415	100	312	1	44	4	1,440	29	0.47	1.30	0.36	0.03	1.1	3.1	1.50	.300	9.21	115	2.68	106	12.25	0.4
25	Terry Larkin T. Larkin	2.43	89	80	.527	176	176	406	172	9	0	1567.1	1,627	424	922	12	124	0	6,659	84	2.33	0.71	3.27	0.07	6.1	1.9	1.12		5.29	97	2.52	100	9.34	-7.4