phillies most era in one month, since 1900, min 500 pa

Since 1900, the Philadelphia Phillies have their highest ERA when making 500+ plate appearances in a month in September 1999, with an ERA of 6.37.

	TEAM	ERA	PA	MONTH	G	W%	W	L	SO	SHO	SV	IP	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Phillies	6.37	1,071	September 1999	28	.321	9	19	194	0	6	243.0	268	172	177	44	146	13	6	1,138	11	7.19	5.41	1.33	1.63	17.0	12.8	1.70	.302	6.56	9.93
2	Phillies	5.95	535	April 1960	14	.357	5	9	71	0	2	127.0	150	84	87	20	52	1	8	576	4	5.03	3.69	1.37	1.42	12.3	9.0	1.59	.301	6.17	10.63
3	Phillies	5.92	992	June 1997	26	.154	4	22	189	0	2	225.0	262	148	164	29	117	14	10	1,042	9	7.56	4.68	1.62	1.16	18.1	11.2	1.68	.336	6.56	10.48
4	Phillies	5.91	1,015	July 1997	26	.385	10	16	212	1	5	225.1	248	148	159	38	108	8	6	1,024	14	8.47	4.31	1.96	1.52	20.7	10.5	1.58	.319	6.35	9.91
5	Phillies	5.84	1,084	June 2004	27	.481	13	14	176	0	4	237.1	270	154	157	50	92	10	6	1,067	6	6.67	3.49	1.91	1.90	16.5	8.6	1.53	.298	5.95	10.24
6	Phillies	5.83	1,109	July 1961	29	.276	8	21	149	0	2	256.1	293	166	176	34	110	7	15	1,128	12	5.23	3.86	1.35	1.19	13.2	9.8	1.57	.313	6.18	10.29
7	Phillies	5.80	1,050	June 2006	27	.333	9	18	160	0	6	240.1	292	155	165	36	103	15	13	1,104	11	5.99	3.86	1.55	1.35	14.5	9.3	1.64	.324	6.18	10.93
8	Phillies	5.79	1,085	June 2001	28	.429	12	16	186	0	5	244.0	288	157	171	42	87	12	8	1,094	11	6.86	3.21	2.14	1.55	17.0	8.0	1.54	.321	6.31	10.62
9	Phillies	5.67	1,058	May 1997	29	.379	11	18	192	0	7	251.0	258	158	174	38	122	17	9	1,110	19	6.88	4.37	1.57	1.36	17.3	11.0	1.51	.297	6.24	9.25
10	Phillies	5.63	796	April 2009	20	.550	11	9	155	0	5	179.0	200	112	112	40	74	6	3	799	3	7.79	3.72	2.09	2.01	19.4	9.3	1.53	.305	5.63	10.06
11	Phillies	5.63	1,014	June 2019	27	.407	11	16	216	0	6	235.0	261	147	154	54	92	7	11	1,043	10	8.27	3.52	2.35	2.07	20.7	8.8	1.50	.307	5.90	10.00
12	Phillies	5.61	1,116	August 2000	28	.357	10	18	196	1	5	251.2	290	157	172	28	128	9	8	1,146	7	7.01	4.58	1.53	1.00	17.1	11.2	1.66	.334	6.15	10.37
13	Phillies	5.56	1,097	June 2007	28	.536	15	13	177	1	4	251.0	279	155	166	42	93	16	17	1,117	12	6.35	3.33	1.90	1.51	15.8	8.3	1.48	.300	5.95	10.00
14	Phillies	5.50	977	August 2016	26	.462	12	14	211	0	7	234.0	255	143	152	52	75	6	2	1,019	8	8.12	2.88	2.81	2.00	20.7	7.4	1.41	.301	5.85	9.81
15	Phillies	5.49	1,047	May 2017	28	.214	6	22	190	0	1	247.1	279	151	163	46	100	12	9	1,109	12	6.91	3.64	1.90	1.67	17.1	9.0	1.53	.306	5.93	10.15
16	Phillies	5.49	1,033	September 2018	28	.286	8	20	256	0	5	241.0	245	147	152	33	95	10	6	1,054	14	9.56	3.55	2.69	1.23	24.3	9.0	1.41	.321	5.68	9.15
17	Phillies	5.47	1,222	August 1958	31	.387	12	19	133	0	4	266.2	310	162	173	38	72	5	4	1,179	7	4.49	2.43	1.85	1.28	11.3	6.1	1.43	.292	5.84	10.46
18	Phillies	5.45	1,103	August 1999	27	.370	10	17	170	0	4	239.1	267	145	154	35	116	5	4	1,084	8	6.39	4.36	1.47	1.32	15.7	10.7	1.60	.306	5.79	10.04
19	Phillies	5.40	1,114	August 2017	30	.367	11	19	241	0	8	260.0	297	156	171	42	99	19	4	1,166	6	8.34	3.43	2.43	1.45	20.7	8.5	1.52	.333	5.92	10.28
20	Phillies	5.36	1,016	June 2015	27	.296	8	19	220	0	3	243.1	295	145	160	40	95	12	8	1,129	11	8.14	3.51	2.32	1.48	19.5	8.4	1.60	.335	5.92	10.91
21	Phillies	5.34	1,027	June 2016	28	.321	9	19	227	0	5	246.0	302	146	161	39	75	13	5	1,112	7	8.30	2.74	3.03	1.43	20.4	6.7	1.53	.347	5.89	11.05
22	Phillies	5.26	1,019	June 2018	27	.481	13	14	257	0	9	237.2	246	139	148	40	77	13	3	1,036	13	9.73	2.92	3.34	1.51	24.8	7.4	1.36	.317	5.60	9.32
23	Phillies	5.25	1,078	August 2015	28	.429	12	16	186	0	10	252.0	276	147	157	40	82	10	3	1,111	12	6.64	2.93	2.27	1.43	16.7	7.4	1.42	.298	5.61	9.86
24	Phillies	5.25	912	July 2024	24	.417	10	14	211	1	5	212.2	212	124	126	39	76	8	1	917	8	8.93	3.22	2.78	1.65	23.0	8.3	1.35	.297	5.33	8.97
25	Phillies	5.21	915	April 2000	24	.292	7	17	158	0	4	212.2	197	123	130	35	100	6	2	919	8	6.69	4.23	1.58	1.48	17.2	10.9	1.40	.261	5.50	8.34