highest tbf per earned runs by a starting pitcher in mlb history with at least 81 tbf

Grover Powell has the most career total batters faced per earned run by a starting pitcher when facing 81+ batters, with 44.5.

	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	Grover Powell G. Powell	44.5	89	2	4	1	1	.500	4	0.86	10	1	1	0	21.0	13	6	0	13	0	0	0	2	4.29	5.57	0.77	0.00	11.2	14.6	1.24	.197	2.57	5.57
2	Rhett Lowder R. Lowder	32	128	4	6	2	2	.500	6	1.17	22	0	0	0	30.2	25	4	0	14	0	0	0	0	6.46	4.11	1.57	0.00	17.2	10.9	1.27	.272	1.17	7.34
3	Don Kainer D. Kainer	28.33	85	3	3	0	0		3	1.45	10	0	0	0	18.2	18	6	0	9	3	0	1	0	4.82	4.34	1.11	0.00	11.8	10.6	1.45	.286	2.89	8.68
4	Dick Baney D. Baney	27.67	83	3	3	2	0	1.000	3	1.33	7	0	0	0	20.1	21	3	2	5	1	0	1	0	3.10	2.21	1.40	0.89	8.4	6.0	1.28	.279	1.33	9.30
5	River Ryan R. Ryan	27	81	3	4	1	0	1.000	4	1.33	18	0	0	0	20.1	15	4	1	9	0	0	0	0	7.97	3.98	2.00	0.44	22.2	11.1	1.18	.264	1.77	6.64
6	Tony Castillo T. Castillo	25.4	127	5	6	3	0	1.000	6	1.50	15	0	0	0	30.0	28	7	1	9	0	0	0	0	4.50	2.70	1.67	0.30	11.8	7.1	1.23	.265	2.10	8.40
7	Shawn Armstrong S. Armstrong	23	138	6	18	0	3	.000	18	1.51	42	0	0	0	35.2	27	8	2	8	0	0	0	0	10.60	2.02	5.25	0.50	30.4	5.8	0.98	.291	2.02	6.81
8	John Brebbia J. Brebbia	22.75	91	4	21	0	2	.000	21	1.59	20	0	0	0	22.2	18	4	3	6	1	0	0	0	7.94	2.38	3.33	1.19	22.0	6.6	1.06	.246	1.59	7.15
9	Bob O'Brien B. O'Brien	22	88	4	4	1	1	.500	4	1.77	2	1	1	0	20.1	26	8	2	3	1	0	0	1	0.89	1.33	0.67	0.89	2.3	3.4	1.43	.300	3.54	11.51
10	Ryan Merritt R. Merritt	20.4	102	5	5	3	0	1.000	5	1.82	11	0	0	0	24.2	28	7	0	4	0	0	0	0	4.01	1.46	2.75	0.00	10.8	3.9	1.30	.322	2.55	10.22
11	Logan Henderson L. Henderson	20.25	81	4	4	3	0	1.000	4	1.71	29	0	0	0	21.0	14	4	3	6	0	0	0	0	12.43	2.57	4.83	1.29	35.8	7.4	0.95	.256	1.71	6.00
12	Alex Reyes A. Reyes	20.14	141	7	7	2	0	1.000	7	1.87	33	0	0	0	33.2	28	8	0	18	1	0	0	1	8.82	4.81	1.83	0.00	23.4	12.8	1.37	.315	2.14	7.49
13	Alex McColl A. McColl	19.8	99	5	3	2	1	.667	3	1.80	7	2	0	0	25.0	16	6	1	8	0	0		0	2.52	2.88	0.88	0.36	7.1	8.1	0.96	.181	2.16	5.76
14	Ryan Walker R. Walker	18.8	94	5	14	0	1	.000	14	2.11	34	0	0	0	21.1	20	6	3	12	2	0	0	1	14.34	5.06	2.83	1.27	36.2	12.8	1.50	.395	2.53	8.44
15	Bill Graham B. Graham	18.4	92	5	3	1	2	.333	3	1.96	14	1	0	0	23.0	16	6	3	9	0	0	0	0	5.48	3.52	1.56	1.17	15.2	9.8	1.09	.197	2.35	6.26
16	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
17	Cody Morris C. Morris	17.8	89	5	5	1	2	.333	5	2.18	20	0	0	0	20.2	19	7	3	11	0	0	0	1	8.71	4.79	1.82	1.31	22.5	12.4	1.45	.291	3.05	8.27
18	Rich Beck R. Beck	17.6	88	5	3	2	1	.667	3	2.14	10	1	1	0	21.0	22	6	1	7	0	0	1	2	4.29	3.00	1.43	0.43	11.4	8.0	1.38	.300	2.57	9.43
19	Bill Phebus B. Phebus	17.45	192	11	6	3	2	.600	6	2.20	15	4	1	0	45.0	35	18	2	28	2	0		2	3.00	5.60	0.54	0.40	7.8	14.6	1.40	.228	3.60	7.00
20	Noah Cameron N. Cameron	16.82	185	11	8	2	3	.400	8	2.08	34	0	0	0	47.2	31	11	4	15	0	0	0	0	6.42	2.83	2.27	0.76	18.4	8.1	0.97	.205	2.08	5.85
21	Steve Fireovid S. Fireovid	16.14	113	7	5	0	1	.000	5	2.30	12	0	0	0	27.1	29	7	2	7	1	0	0	0	3.95	2.30	1.71	0.66	10.6	6.2	1.32	.297	2.30	9.55
22	Lew Krausse L. Krausse	15.71	110	7	4	3	0	1.000	4	2.25	5	3	1	0	28.0	21	8	2	6	0	0		1	1.61	1.93	0.83	0.64	4.5	5.5	0.96	.196	2.57	6.75
23	Drey Jameson D. Jameson	15.44	139	9	7	3	1	.750	7	2.45	32	0	0	0	33.0	29	9	3	14	1	0	0	1	8.73	3.82	2.29	0.82	23.0	10.1	1.30	.292	2.45	7.91
24	Tyler Thornburg T. Thornburg	15.33	230	15	10	2	1	.667	10	2.37	45	0	0	0	57.0	50	17	6	20	1	0	1	1	7.11	3.16	2.25	0.95	19.6	8.7	1.23	.278	2.68	7.89
25	Les Rohr L. Rohr	15.33	92	6	4	2	2	.500	4	2.61	18	0	0	0	20.2	21	10	1	12	0	0	0	0	7.84	5.23	1.50	0.44	19.6	13.0	1.60	.328	4.35	9.15