least earned runs in a season min 10 starts

Tim Keefe has allowed the fewest earned runs with 10+ starts in a season, with 10 earned runs in his rookie season in 1880.

Interpreted as:

least earned runs by a player in a season min 10 starts

	NAME	ER	GS	SEASON	TM	G	W	L	W%	ERA	SO	CG	SHO	SV	IP	H	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Tim Keefe T. Keefe	10	12	1880	TRO	12	6	6	.500	0.86	39	12	0	0	105.0	68	27	0	16		0		397	1	3.34	1.37	2.44	0.00	9.8	4.0	0.80		2.31	35	2.25	91	5.83	3.6
2	Nathan Eovaldi N. Eovaldi	11	10	2025	TEX	10	4	2	.667	1.61	65	1	1	0	61.1	39	13	3	8	4	0	0	232	4	9.54	1.17	8.13	0.44	28.0	3.4	0.77	.237	1.91	40	2.20	53	5.72	13.2
3	Jacob deGrom J. deGrom	11	15	2021	NYM	15	7	2	.778	1.08	146	1	1	0	92.0	40	14	6	11	1	0	0	324	0	14.28	1.08	13.27	0.59	45.1	3.4	0.55	.213	1.37	27	1.23	29	3.91	30.6
4	Tyler Glasnow T. Glasnow	12	12	2019	TBR	12	6	1	.857	1.78	76	0	0	0	60.2	40	13	4	14	0	0	0	230	2	11.27	2.08	5.43	0.59	33.0	6.1	0.89	.265	1.93	41	2.25	51	5.93	14.9
5	Jarred Cosart J. Cosart	13	10	2013	HOU	10	1	1	.500	1.95	33	0	0	0	60.0	46	15	3	35	0	0	0	246	3	4.95	5.25	0.94	0.45	13.4	14.2	1.35	.246	2.25	49	4.34	109	6.90	-2.2
6	Garrett Crochet G. Crochet	14	10	2025	BOS	10	4	3	.571	2.00	73	0	0	0	63.0	46	17	5	21	0	0	0	251	0	10.43	3.00	3.48	0.71	29.1	8.4	1.06	.270	2.43	47	2.81	68	6.57	9.2
7	Trevor Bauer T. Bauer	14	11	2020	CIN	11	5	4	.556	1.73	100	2	2	0	73.0	41	17	9	17	3	0	1	278	3	12.33	2.10	5.88	1.11	36.0	6.1	0.79	.215	2.10	36	2.87	61	5.05	14.1
8	Max Fried M. Fried	14	11	2020	ATL	11	7	0	1.000	2.25	50	0	0	0	56.0	42	14	2	19	4	0	0	224	1	8.04	3.05	2.63	0.32	22.3	8.5	1.09	.268	2.25	49	3.09	70	6.75	8.2
9	Clayton Kershaw C. Kershaw	14	10	2020	LAD	10	6	2	.750	2.16	62	0	0	0	58.1	41	18	8	8	1	0	0	221	0	9.57	1.23	7.75	1.23	28.1	3.6	0.84	.232	2.78	49	3.30	74	6.33	7.4
10	Dallas Keuchel D. Keuchel	14	11	2020	CWS	11	6	2	.750	1.99	42	0	0	0	63.1	52	15	2	17	0	0	0	257	0	5.97	2.42	2.47	0.28	16.3	6.6	1.09	.255	2.13	45	3.07	66	7.39	10.6
11	Shane Bieber S. Bieber	14	12	2020	CLE	12	8	1	.889	1.63	122	0	0	0	77.1	46	15	7	21	1	0	0	297	5	14.20	2.44	5.81	0.81	41.1	7.1	0.87	.267	1.75	37	2.06	46	5.35	20.5
12	Ferdie Schupp F. Schupp	14	11	1916	NYG	30	9	3	.750	0.90	86	8	4	1	140.1	79	22	1	37	5	17		525	2	5.52	2.37	2.32	0.06	16.4	7.0	0.83	.197	1.41	36	2.08	84	5.07	6.1
13	Trevor Williams T. Williams	15	13	2024	WSH	13	6	1	.857	2.03	59	0	0	0	66.2	51	17	3	18	0	0	0	260	0	7.97	2.43	3.28	0.41	22.7	6.9	1.03	.267	2.30	50	2.78	68	6.89	9.7
14	Aaron Civale A. Civale	15	10	2019	CLE	10	3	4	.429	2.34	46	0	0	0	57.2	44	18	4	16	1	0	0	227	2	7.18	2.50	2.88	0.62	20.3	7.0	1.04	.250	2.81	51	3.39	75	6.87	7.3
15	Dizzy Dean D. Dean	15	10	1938	CHC	13	7	1	.875	1.81	22	3	1	0	74.2	63	20	2	8	1	2		288	0	2.65	0.96	2.75	0.24	7.6	2.8	0.95	.239	2.41	47	3.04	76	7.59	8
16	Guy Hecker G. Hecker	15	11	1882	LOU	13	6	6	.500	1.30	33	10	0	0	104.0	75	49	0	5		1		403	7	2.86	0.43	6.60	0.00	8.2	1.2	0.77		4.24	49	2.27	82	6.49	5.1
17	Ranger Suárez R. Suárez	16	12	2021	PHI	39	8	5	.615	1.36	107	1	1	4	106.0	73	20	4	33	5	13	3	418	1	9.08	2.80	3.24	0.34	25.6	7.9	1.00	.257	1.70	32	2.71	63	6.20	18.7
18	Chris Bassitt C. Bassitt	16	11	2020	OAK	11	5	2	.714	2.29	55	0	0	0	63.0	56	18	6	17	2	0	0	261	2	7.86	2.43	3.24	0.86	21.1	6.5	1.16	.276	2.57	54	3.58	83	8.00	5.2
19	Steven Brault S. Brault	16	10	2020	PIT	11	1	3	.250	3.38	38	1	0	0	42.2	29	17	2	22	5	0	0	178	3	8.02	4.64	1.73	0.42	21.3	12.4	1.20	.243	3.59	76	3.91	87	6.12	2.8
20	Dinelson Lamet D. Lamet	16	12	2020	SDP	12	3	1	.750	2.09	93	0	0	0	69.0	39	18	5	20	4	0	0	267	1	12.13	2.61	4.65	0.65	34.8	7.5	0.86	.234	2.35	49	2.47	56	5.09	15.1
21	Taijuan Walker T. Walker	16	11	2020	TOT	11	4	3	.571	2.70	50	0	0	0	53.1	43	23	8	19	4	0	0	225	1	8.44	3.21	2.63	1.35	22.2	8.4	1.16	.243	3.88	63	4.55	105	7.26	-1.3
22	Dustin May D. May	16	10	2020	LAD	12	3	1	.750	2.57	44	0	0	0	56.0	45	18	9	16	1	0	0	224	2	7.07	2.57	2.75	1.45	19.6	7.1	1.09	.234	2.89	59	4.61	104	7.23	-1
23	Rich Hill R. Hill	16	13	2019	LAD	13	4	1	.800	2.45	72	0	0	0	58.2	48	20	10	18	4	0	2	242	0	11.05	2.76	4.00	1.53	29.8	7.4	1.13	.275	3.07	58	4.09	92	7.36	2.2
24	Michael Pineda M. Pineda	16	13	2014	NYY	13	5	5	.500	1.89	59	0	0	0	76.1	56	18	5	7	0	0	0	290	3	6.96	0.83	8.43	0.59	20.3	2.4	0.83	.233	2.12	49	2.71	69	6.60	10.1
25	Vern Ruhle V. Ruhle	16	10	1978	HOU	13	3	3	.500	2.12	27	2	2	0	68.0	57	17	0	20	1	1	1	279	1	3.57	2.65	1.35	0.00	9.7	7.2	1.13	.247	2.25	64	2.71	81	7.54	5