what is the most earned runs given up in a single mlb start

George Leclair has allowed the most earned runs in a start, with 20 earned runs against the Indianapolis Hoosiers on August 16, 1914.

Interpreted as:

What is the most earned runs given up in a single MLB regular-season start by a player?

	NAME	ER	GS	DATE	TM		OPP	DEC	ERA	SO	CG	SHO	SV	IP	H	R	HR	BB	HBP	GF	IBB	TBF	WP
1	George Leclair G. Leclair	20	1	8/16/1914	PTF	@	IND	L	22.50	0	1	0	0	8.0	24	21	0	8	0	0		51	0
2	Howard Ehmke H. Ehmke	16	1	9/28/1923	BSA	vs	NYY	L	24.00	6	0	0	0	6.0	21	17	2	4	0	0		42	0
3	Jack Bracken J. Bracken	16	1	9/15/1901	CLE	@	DET	L	20.57	1	1	0	0	7.0	24	21	1	3	2	0		49	1
4	Bob Feller B. Feller	15	1	8/26/1938	CLE	@	NYY	L	19.29	7	0	0	0	7.0	15	15	2	9	0	0		44	1
5	Slick Castleman S. Castleman	15	1	6/9/1936	NYG	@	CIN	L	16.88	2	1	0	0	8.0	18	15	1	3	0	0		45	1
6	Flint Rhem F. Rhem	15	1	8/4/1933	PHN	vs	NYG	L	16.88	1	0	0	0	8.0	21	16	0	3	1	0		47	0
7	Hugh McQuillan H. McQuillan	15	1	9/11/1927	BSN	@	CIN	L	20.25	2	0	0	0	6.2	17	16	1	3	0	0		39	0
8	Win Noyes W. Noyes	15	1	9/5/1919	PHA	vs	BSA	L	19.29	3	0	0	0	7.0	22	15	1	2	1	0		43	0
9	Jack Katoll J. Katoll	15	1	9/12/1902	BAL	vs	WSH	L	15.00	0	1	0	0	9.0	23	15	0	1	0	0		49	0
10	Jim Hughes J. Hughes	15	1	8/20/1902	BKN	@	CIN	L	16.88	3	1	0	0	8.0	21	15	1	3	0	0		45	0
11	Al Maul A. Maul	15	1	9/5/1901	NYG	vs	PIT	L	15.00	3	1	0	0	9.0	22	15	1	5	0	0		52	0
12	Casey Patten C. Patten	15	1	7/24/1901	WSH	@	CWS	L	16.88	1	1	0	0	8.0	20	17	0	4	0	0		52	0
13	Mike Oquist M. Oquist	14	1	8/3/1998	OAK	vs	NYY	L	25.20	3	0	0	0	5.0	16	14	4	3	0	0	0	32	0
14	Bill Travers B. Travers	14	1	8/14/1977	MIL	@	CLE	L	16.43	4	0	0	0	7.2	18	14	2	4	1	0	0	45	2
15	Al Jurisich A. Jurisich	14	1	6/28/1947	PHN	@	NYG	L	15.75	1	1	0	0	8.0	16	14	3	6	0	0		46	0
16	Chubby Dean C. Dean	14	1	9/28/1940	PHA	@	BSA	L	15.75	1	1	0	0	8.0	19	16	1	5	0	0		47	2
17	Jim Walkup J. Walkup	14	1	7/25/1937	SLA	vs	WSH	L	15.75	3	0	0	0	8.0	16	14	1	5	0	0		44	1
18	Hod Lisenbee H. Lisenbee	14	1	9/11/1936	PHA	@	CWS	L	15.75	1	1	0	0	8.0	26	17	2	4	0	0		51	1
19	Johnny Miljus J. Miljus	14	1	7/25/1929	CLE	@	PHA	L	42.00	0	0	0	0	3.0	13	14	3	3	0	0		25	0
20	Ted Lyons T. Lyons	14	1	7/21/1924	CWS	@	WSH	L	15.75	3	1	0	0	8.0	18	16	0	5	0	0		48	0
21	Bill Phillips B. Phillips	14	1	9/24/1901	CIN	vs	BKN	L	14.00	3	1	0	0	9.0	21	16	2	0	1	0		51	0
22	Roscoe Miller R. Miller	14	1	6/24/1901	DET	@	BAL	L	15.75	0	1	0	0	8.0	22	17	0	3	2	0		50	0
23	Doc Parker D. Parker	14	1	6/21/1901	CIN	@	BKN	L	15.75	0	1	0	0	8.0	26	21	1	2	0	0		51	1
24	Roy Patterson R. Patterson	14	1	5/5/1901	CWS	@	MIL	L	14.00	2	1	0	0	9.0	25	21	1	2	0	0		57	0
25	Ben Lively B. Lively	13	1	8/1/2023	CIN	@	CHC	L	29.25	2	0	0	0	4.0	13	13	4	2	1	0	0	27	0