highest tbf per earned runs by a starting pitcher in mlb history with at least 270 tbf

Paul Skenes has the most career total batters faced per earned run by a starting pitcher when facing 270+ batters, with 17.17.

	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	17.17	807	47	35	15	8	.652	35	2.03	247	1	0	0	208.1	145	51	14	50	8	0	0	3	10.67	2.16	4.94	0.60	30.6	6.2	0.94	.268	2.20	6.26
2	Kodai Senga K. Senga	14.27	942	66	40	18	10	.643	40	2.61	263	0	0	0	227.1	171	74	20	104	7	0	0	18	10.41	4.12	2.53	0.79	27.9	11.0	1.21	.276	2.93	6.77
3	Clayton Kershaw C. Kershaw	14.13	10,848	768	432	212	94	.693	432	2.51	2,969	25	15	0	2749.2	2,100	841	228	682	44	0	27	103	9.72	2.23	4.35	0.75	27.4	6.3	1.01	.270	2.75	6.87
4	Jacob deGrom J. deGrom	14.06	5,623	400	229	88	59	.599	229	2.52	1,728	4	2	0	1430.1	1,098	437	129	322	23	0	13	28	10.87	2.03	5.37	0.81	30.7	5.7	0.99	.283	2.75	6.91
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	Yoshinobu Yamamoto Y. Yamamoto	13.95	614	44	29	13	5	.722	29	2.57	180	0	0	0	154.0	116	49	12	42	2	0	0	5	10.52	2.45	4.29	0.70	29.3	6.8	1.03	.275	2.86	6.78
8	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
9	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
10	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
11	Drew Rasmussen D. Rasmussen	13.53	1,164	86	61	22	13	.629	61	2.60	254	0	0	0	297.2	230	92	23	62	7	0	0	13	7.68	1.87	4.10	0.70	21.8	5.3	0.98	.253	2.78	6.95
12	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
13	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
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	Jeffrey Springs J. Springs	12.88	979	76	48	17	10	.630	48	2.87	246	0	0	0	238.0	200	88	29	66	3	0	0	1	9.30	2.50	3.73	1.10	25.1	6.7	1.12	.269	3.33	7.56
21	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
22	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
23	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
24	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
25	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