The Chicago Cubs have allowed the most runs by a team in a win, with 23 runs against the Phillies on August 25, 1922.

Interpreted as:

most runs allowed in a regular-season game in a win

	TEAM	R	W	DATE	TM		OPP	RESULT	L	W%	ERA	SO	SHO	SV	IP	H	ER	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Cubs	23	1	8/25/1922	CHC	vs	PHN	W 26-23	0	1.000	0.00	5	0	1	9.0	26	0	0	11	0		66	1	5.00	11.00	0.45	0.00	7.6	16.7	4.11	.520	23.00	26.00
2	Phillies	22	1	5/17/1979	PHI	@	CHC	W 23-22	0	1.000	17.10	4	0	0	10.0	26	19	6	3	0	0	59	0	3.60	2.70	1.33	5.40	6.8	5.1	2.90	.435	19.80	23.40
3	Gladiators	21	1	4/18/1890	BKA	vs	SYR	W 22-21	0	1.000
4	Senators	19	1	6/17/1891	WSH	vs	BAL	W 20-19	0	1.000
5	Spiders	19	1	6/6/1888	CLE	vs	LOU	W 23-19	0	1.000
6	Red Sox	17	1	8/12/2008	BOS	vs	TEX	W 19-17	0	1.000	15.00	6	0	1	9.0	20	15	1	3	1	0	53	2	6.00	3.00	2.00	1.00	11.3	5.7	2.56	.452	17.00	20.00
7	Rockies	17	1	7/4/2008	COL	vs	FLA	W 18-17	0	1.000	17.00	4	0	0	9.0	22	17	2	6	2	1	56	1	4.00	6.00	0.67	2.00	7.1	10.7	3.11	.476	17.00	22.00
8	Reds	17	1	8/3/1969	CIN	@	PHI	W 19-17	0	1.000	17.00	6	0	0	9.0	21	17	3	4	0	1	51	0	6.00	4.00	1.50	3.00	11.8	7.8	2.78	.474	17.00	21.00
9	Athletics	17	1	7/10/1932	PHA	@	CLE	W 18-17	0	1.000	0.00	7	0	0	18.0	33	0	1	10	0		95	2	3.50	5.00	0.70	0.50	7.4	10.5	2.39	.416	8.50	16.50
10	Phillies	17	1	4/19/1900	PHI	@	BSN	W 19-17	0	1.000
11	Reds	17	1	8/7/1890	CIN	vs	PTN	W 23-17	0	1.000
12	White Stockings	17	1	5/23/1889	CWS	@	NYG	W 18-17	0	1.000
13	White Stockings	17	1	7/28/1888	CWS	vs	DET	W 21-17	0	1.000
14	Athletics	17	1	4/26/1887	PHA	vs	NYM	W 18-17	0	1.000
15	Bisons	17	1	8/14/1883	BUF	vs	CWS	W 19-17	0	1.000
16	Brown Stockings	17	1	7/6/1882	STL	vs	LOU	W 21-17	0	1.000
17	Rangers	16	1	5/5/2000	TEX	vs	OAK	W 17-16	0	1.000	13.00	8	0	0	9.0	16	13	5	8	0	0	51	1	8.00	8.00	1.00	5.00	15.7	15.7	2.67	.367	16.00	16.00
18	White Sox	16	1	9/14/1998	CWS	@	DET	W 17-16	0	1.000	9.75	10	0	0	12.0	22	13	3	1	0	1	60	1	7.50	0.75	10.00	2.25	16.7	1.7	1.92	.413	12.00	16.50
19	Phillies	16	1	4/17/1976	PHI	@	CHC	W 18-16	0	1.000	14.40	7	0	1	10.0	19	16	3	6	3	1	58	0	6.30	5.40	1.17	2.70	12.1	10.3	2.50	.410	14.40	17.10
20	Padres	16	1	5/23/1970	SDP	@	SFG	W 17-16	0	1.000	9.60	12	0	0	15.0	23	16	4	10	0	3	76	1	7.20	6.00	1.20	2.40	15.8	13.2	2.20	.380	9.60	13.80
21	Cardinals	16	1	9/23/1930	SLN	@	PHN	W 19-16	0	1.000	0.00	7	0	1	9.0	16	0	1	6	0		50	2	7.00	6.00	1.17	1.00	14.0	12.0	2.44	.417	16.00	16.00
22	Robins	16	1	5/18/1929	BKN	@	PHN	W 20-16	0	1.000	0.00	6	0	1	9.0	17	0	2	12	0		53	1	6.00	12.00	0.50	2.00	11.3	22.6	3.22	.455	16.00	17.00
23	Beaneaters	16	1	6/2/1900	BSN	vs	STL	W 17-16	0	1.000
24	Phillies	16	1	9/23/1896	PHI	vs	BKN	W 17-16	0	1.000
25	Orioles	16	1	8/8/1896	BAL	@	WSH	W 21-16	0	1.000