Gene Packard has given up the most earned runs in a start that he has won, with 12 earned runs against the Phillies on August 3, 1918.

Interpreted as:

most earned runs in a regular-season start with a win by a player

	NAME	ER	GS	W	DATE	TM		OPP	DEC	L	W%	ERA	SO	CG	SHO	SV	IP	H	R	HR	BB	HBP	GF	IBB	TBF	WP
1	Gene Packard G. Packard	12	1	1	8/3/1918	SLN	@	PHN	W	0	1.000	12.96	3	0	0	0	8.1	15	12	1	3	0	0		41	0
2	Thornton Lee T. Lee	11	1	1	9/28/1938	CWS	@	CLE	W	0	1.000	11.00	3	1	0	0	9.0	16	11	2	6	0	0		49	0
3	Jack Knott J. Knott	11	1	1	9/2/1936	SLA	@	PHA	W	0	1.000	11.00	2	1	0	0	9.0	12	11	1	7	0	0		43	1
4	Pete Donohue P. Donohue	11	1	1	6/2/1928	CIN	@	BSN	W	0	1.000	15.63	0	0	0	0	6.1	14	11	3	0	1	0		33	0
5	Ted Lewis T. Lewis	11	1	1	5/2/1901	BSA	@	PHA	W	0	1.000	11.00	2	1	0	0	9.0	19	12	1	0	0	0		47	0
6	Russ Ortiz R. Ortiz	10	1	1	5/21/2000	SFG	@	MIL	W	0	1.000	13.50	7	0	0	0	6.2	8	10	2	3	1	0	0	32	2
7	Bob Friend B. Friend	10	1	1	5/2/1954	PIT	@	CHC	W	0	1.000	11.74	6	0	0	0	7.2	14	10	4	5	0	0	0	42	0
8	Ralph Branca R. Branca	10	1	1	6/25/1949	BKN	@	PIT	W	0	1.000	10.00	5	1	0	0	9.0	12	10	5	5	0	0		41	0
9	Buck Ross B. Ross	10	1	1	8/16/1938	PHA	@	BSA	W	0	1.000	10.38	5	0	0	0	8.2	13	11	2	3	0	0		45	0
10	Oral Hildebrand O. Hildebrand	10	1	1	4/21/1937	SLA	vs	CWS	W	0	1.000	10.00	2	1	0	0	9.0	17	10	0	4	0	0		47	0
11	Tommy Bridges T. Bridges	10	1	1	9/26/1934	DET	vs	CWS	W	0	1.000	12.86	7	0	0	0	7.0	11	10	1	3	0	0		35	0
12	Phil Collins P. Collins	10	1	1	6/23/1932	PHN	vs	CHC	W	0	1.000	10.00	2	1	0	0	9.0	14	10	2	3	0	0		40	0
13	Herb Pennock H. Pennock	10	1	1	6/26/1930	NYY	vs	CLE	W	0	1.000	12.27	3	0	0	0	7.1	16	10	3	1	0	0		38	0
14	Elam Vangilder E. Vangilder	10	1	1	9/29/1928	DET	vs	NYY	W	0	1.000	10.00	3	1	0	0	9.0	18	10	2	1	0	0		46	0
15	Bill Sherdel B. Sherdel	10	1	1	7/13/1926	SLN	vs	BKN	W	0	1.000	10.00	5	1	0	0	9.0	16	10	4	1	0	0		42	0
16	Ernie Wingard E. Wingard	10	1	1	5/31/1925	SLA	@	CWS	W	0	1.000	10.00	0	1	0	0	9.0	19	11	0	1	0	0		45	0
17	Hub Perdue H. Perdue	10	1	1	7/7/1913	BSN	@	PHN	W	0	1.000	10.00	3	1	0	0	9.0	15	11	3	1	0	0		43	0
18	Bill Hoffer B. Hoffer	10	1	1	5/23/1901	CLE	vs	WSH	W	0	1.000	10.00	0	1	0	0	9.0	14	13	0	3	0	0		47	0
19	Bill Phillips B. Phillips	10	1	1	5/2/1901	CIN	@	STL	W	0	1.000	10.00	1	1	0	0	9.0	17	12	0	1	1	0		46	0
20	Dan Haren D. Haren	9	1	1	8/21/2006	OAK	@	TOR	W	0	1.000	14.29	4	0	0	0	5.2	11	9	2	2	0	0	0	28	0
21	Bartolo Colon B. Colon	9	1	1	5/17/1999	CLE	@	CWS	W	0	1.000	14.29	7	0	0	0	5.2	9	9	3	2	0	0	0	28	0
22	Lynn McGlothen L. McGlothen	9	1	1	5/10/1980	CHC	vs	SFG	W	0	1.000	10.57	6	0	0	0	7.2	14	9	4	1	0	0	0	37	1
23	Don Sutton D. Sutton	9	1	1	5/31/1979	LAD	vs	SFG	W	0	1.000	12.15	5	0	0	0	6.2	13	9	0	3	0	0	0	36	0
24	Vida Blue V. Blue	9	1	1	4/19/1979	SFG	@	SDP	W	0	1.000	10.13	4	0	0	0	8.0	11	10	1	4	0	0	0	39	0
25	Phil Ortega P. Ortega	9	1	1	5/18/1965	WSH	@	DET	W	0	1.000	11.57	3	0	0	0	7.0	9	9	2	2	0	0	0	32	1