highest tbf per earned runs by a starting pitcher in mlb history with at least 250 tbf

Paul Skenes has the most career total batters faced per earned run by a starting pitcher when facing 250+ batters, with 18.08.

	NAME	TBF/ER	TBF	ER	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	R	HR	BB	HBP	GF	IBB	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Paul Skenes P. Skenes	18.08	904	50	39	15	9	.625	39	1.91	276	1	0	0	235.0	157	55	15	59	8	0	0	4	10.57	2.26	4.68	0.57	30.5	6.5	0.92	.260	2.11	6.01
2	Kodai Senga K. Senga	14.59	1,007	69	43	20	10	.667	43	2.53	281	0	0	0	245.1	179	77	22	109	7	0	0	18	10.31	4.00	2.58	0.81	27.9	10.8	1.17	.267	2.82	6.57
3	Clayton Kershaw C. Kershaw	14.13	10,937	774	436	215	94	.696	436	2.51	2,987	25	15	0	2771.1	2,120	849	231	688	44	0	27	105	9.70	2.23	4.34	0.75	27.3	6.3	1.01	.270	2.76	6.88
4	Jacob deGrom J. deGrom	14.11	5,715	405	233	91	59	.607	233	2.50	1,753	4	2	0	1455.1	1,114	442	129	326	24	0	13	28	10.84	2.02	5.38	0.80	30.7	5.7	0.99	.283	2.73	6.89
5	Jose Fernandez J. Fernandez	13.99	1,888	135	76	38	17	.691	76	2.58	589	0	0	0	471.1	357	150	31	140	13	0	12	16	11.25	2.67	4.21	0.59	31.2	7.4	1.05	.292	2.86	6.82
6	Butch Wensloff B. Wensloff	13.97	1,006	72	32	15	12	.556	32	2.63	111	19	1	0	246.1	197	90	11	83	1	0		2	4.06	3.03	1.34	0.40	11.0	8.3	1.14	.233	3.29	7.20
7	Otey Clark O. Clark	13.9	292	21	9	3	4	.429	9	2.73	16	4	1	0	69.1	77	25	4	15	1	0		1	2.08	1.95	1.07	0.52	5.5	5.1	1.33	.285	3.25	10.00
8	Hoyt Wilhelm H. Wilhelm	13.63	1,554	114	52	19	19	.500	52	2.68	250	20	5	0	383.1	320	136	25	115	11	0	5	9	5.87	2.70	2.17	0.59	16.1	7.4	1.13	.256	3.19	7.51
9	Whitey Ford W. Ford	13.61	12,468	916	438	227	99	.696	438	2.71	1,857	156	45	0	3038.0	2,647	1,050	220	1,014	27	0	39	72	5.50	3.00	1.83	0.65	14.9	8.1	1.21	.260	3.11	7.84
10	Sandy Koufax S. Koufax	13.51	8,959	663	314	159	85	.652	314	2.71	2,274	137	40	0	2202.1	1,655	751	194	742	17	0	46	76	9.29	3.03	3.06	0.79	25.4	8.3	1.09	.255	3.07	6.76
11	Shane Smith S. Smith	13.48	310	23	14	3	4	.429	14	2.85	66	0	0	0	72.2	59	31	4	30	8	0	0	5	8.17	3.72	2.20	0.50	21.3	9.7	1.22	.272	3.84	7.31
12	Spud Chandler S. Chandler	13.29	5,915	445	184	106	42	.716	184	2.78	603	109	26	0	1442.1	1,279	525	63	445	19	0		18	3.76	2.78	1.36	0.39	10.2	7.5	1.20	.254	3.28	7.98
13	Drew Rasmussen D. Rasmussen	13.27	1,247	94	65	24	14	.632	65	2.65	273	0	0	0	319.0	248	100	25	67	8	0	0	15	7.70	1.89	4.07	0.71	21.9	5.4	0.99	.255	2.82	7.00
14	Ryne Stanek R. Stanek	13.24	331	25	56	0	3	.000	56	2.71	102	0	0	0	83.0	57	27	9	31	1	0	0	3	11.06	3.36	3.29	0.98	30.8	9.4	1.06	.255	2.93	6.18
15	Jim Wright J. Wright	13.23	410	31	17	9	4	.692	17	2.74	47	5	3	0	102.0	102	35	4	15	5	0	1	0	4.15	1.32	3.13	0.35	11.5	3.7	1.15	.289	3.09	9.00
16	Ernie White E. White	13.2	1,623	123	57	25	17	.595	57	2.89	190	24	5	0	383.0	342	164	24	140	9	0		5	4.46	3.29	1.36	0.56	11.7	8.6	1.26	.252	3.85	8.04
17	Jim Palmer J. Palmer	13.07	15,714	1,202	521	262	148	.639	521	2.80	2,142	211	53	0	3857.0	3,256	1,334	292	1,259	37	0	36	83	5.00	2.94	1.70	0.68	13.6	8.0	1.17	.247	3.11	7.60
18	Tex Hughson T. Hughson	13.04	5,046	387	156	86	51	.628	156	2.83	627	99	19	0	1232.2	1,129	432	71	311	10	0		2	4.58	2.27	2.02	0.52	12.4	6.2	1.17	.263	3.15	8.24
19	Bob Gibson B. Gibson	12.89	15,669	1,216	482	245	170	.590	482	2.88	3,044	255	56	0	3796.1	3,199	1,376	250	1,277	99	0	107	105	7.22	3.03	2.38	0.59	19.4	8.1	1.18	.268	3.26	7.58
20	Johnny Beazley J. Beazley	12.82	1,359	106	46	25	9	.735	46	3.01	114	21	3	0	317.0	307	126	12	134	5	0		13	3.24	3.80	0.85	0.34	8.4	9.9	1.39	.270	3.58	8.72
21	Arnold Carter A. Carter	12.78	703	55	24	11	10	.524	24	3.02	29	11	4	0	163.2	176	69	3	45	4	0		1	1.59	2.47	0.64	0.16	4.1	6.4	1.35	.278	3.79	9.68
22	Tom Seaver T. Seaver	12.75	19,337	1,517	647	310	203	.604	647	2.86	3,634	231	61	0	4776.1	3,961	1,670	378	1,387	76	0	115	123	6.85	2.61	2.62	0.71	18.8	7.2	1.12	.258	3.15	7.46
23	Bob Veale B. Veale	12.72	7,444	585	255	109	90	.548	255	2.98	1,553	78	20	0	1764.1	1,507	675	79	780	29	0	51	76	7.92	3.98	1.99	0.40	20.9	10.5	1.30	.285	3.44	7.69
24	Bob Logan B. Logan	12.7	775	61	25	7	9	.438	25	3.07	52	5	1	0	178.2	196	76	5	51	1	0		1	2.62	2.57	1.02	0.25	6.7	6.6	1.38	.287	3.83	9.87
25	Dean Chance D. Chance	12.69	8,082	637	294	111	105	.514	294	2.94	1,402	83	33	0	1949.1	1,682	763	111	663	64	0	58	60	6.47	3.06	2.11	0.51	17.3	8.2	1.20	.269	3.52	7.77