The Philadelphia Athletics and the Detroit Tigers were tied for the most runs in a loss in 1919, with 10 runs.

Interpreted as:

most runs by a team in a regular-season loss in 1919

	TEAM	R	L	DATE	TM		OPP	RESULT	W	L%	AB	H	2B	3B	HR	RBI	BB	HBP	SO	SB	PA	TB	XBH	SH	AVG	OBP	SLG	OPS
1	Athletics	10	1	9/15/1919	PHA	vs	CWS	L 10-11	0	1.000	40	13	1	0	2		2	1	4	1	44	20	3	1	.325	.372	.500	.872
2	Tigers	10	1	9/6/1919	DET	vs	SLA	L 10-12	0	1.000	41	15	3	3	0	9	4	0	1	2	47	24	6	2	.366	.422	.585	1.008
3	White Sox	9	1	9/28/1919	CWS	vs	DET	L 9-10	0	1.000	37	19	4	2	0		1	0	1	2	40	27	6	2	.514	.526	.730	1.256
4	Robins	9	1	9/25/1919	BKN	@	PHN	L 9-10	0	1.000	34	9	3	0	2	8	3	0	1	0	39	18	5	2	.265	.324	.529	.854
5	Yankees	9	1	8/11/1919	NYY	vs	CLE	L 9-15	0	1.000	39	14	1	0	3	9	3	0	3	0	43	24	4	1	.359	.405	.615	1.020
6	Red Sox	9	1	7/13/1919	BSA	@	CWS	L 9-14	0	1.000	38	15	0	1	0	9	3	0	7	0	43	17	1	2	.395	.439	.447	.886
7	Cardinals	9	1	7/7/1919	SLN	@	PIT	L 9-14	0	1.000	43	16	3	1	0	9	1	0	1	5	44	21	4	0	.372	.386	.488	.875
8	White Sox	9	1	7/1/1919	CWS	@	CLE	L 9-14	0	1.000	41	15	5	1	0		3	0	2	0	44	22	6	0	.366	.409	.537	.946
9	Reds	9	1	6/29/1919	CIN	vs	SLN	L 9-14	0	1.000	36	12	2	2	0	6	5	0	3	2	42	18	4	1	.333	.415	.500	.915
10	Athletics	9	1	6/20/1919	PHA	vs	DET	L 9-11	0	1.000	39	15	2	1	1	9	5	0	7	1	45	22	4	1	.385	.455	.564	1.019
11	Athletics	9	1	6/3/1919	PHA	vs	NYY	L 9-10	0	1.000	41	13	1	0	1		8	0	7	2	49	17	2	0	.317	.429	.415	.843
12	Robins	9	1	6/1/1919	BKN	vs	PHN	L 9-10	0	1.000	68	19	2	1	0	7	6	0	5	2	78	23	3	4	.279	.338	.338	.676
13	Phillies	9	1	5/6/1919	PHN	@	BKN	L 9-11	0	1.000	41	10	0	0	1	6	3	1	2	0	45	13	1	0	.244	.311	.317	.628
14	Athletics	8	1	9/16/1919	PHA	vs	CLE	L 8-12	0	1.000	39	13	1	0	1		4	0	2	2	43	17	2	0	.333	.395	.436	.831
15	Tigers	8	1	9/13/1919	DET	@	WSH	L 8-9	0	1.000	38	12	3	0	0	8	12	0	2	1	50	15	3	0	.316	.480	.395	.875
16	Robins	8	1	9/10/1919	BKN	@	SLN	L 8-11	0	1.000	39	12	0	2	0	5	2	1	5	0	42	16	2	0	.308	.357	.410	.767
17	Yankees	8	1	8/2/1919	NYY	vs	DET	L 8-14	0	1.000	34	9	1	0	1	8	7	0	3	2	44	13	2	3	.265	.390	.382	.773
18	Red Sox	8	1	7/29/1919	BSA	vs	DET	L 8-10	0	1.000	35	10	2	0	1	8	5	0	1	1	41	15	3	1	.286	.375	.429	.804
19	Browns	8	1	7/19/1919	SLA	vs	NYY	L 8-9	0	1.000	32	9	0	1	1	7	6	0	2	0	40	14	2	2	.281	.395	.438	.832
20	Giants	8	1	7/9/1919	NYG	vs	SLN	L 8-12	0	1.000	35	9	2	0	0	6	4	0	5	1	39	11	2	0	.257	.333	.314	.648
21	Phillies	8	1	7/5/1919	PHN	vs	NYG	L 8-10	0	1.000	39	15	5	1	1	8	1	0	0	0	42	25	7	2	.385	.400	.641	1.041
22	Red Sox	7	1	9/28/1919	BSA	@	WSH	L 7-8	0	1.000	38	12	0	1	0	6	4	1	1	0	45	14	1	2	.316	.395	.368	.764
23	White Sox	7	1	9/26/1919	CWS	vs	DET	L 7-10	0	1.000	40	13	1	0	0	5	2	0	2	1	42	14	1	0	.325	.357	.350	.707
24	Phillies	7	1	9/24/1919	PHN	vs	BKN	L 7-14	0	1.000	38	13	1	0	0	5	4	0	1	2	43	14	1	1	.342	.405	.368	.773
25	Athletics	7	1	9/5/1919	PHA	vs	BSA	L 7-15	0	1.000	37	12	3	2	0		3	0	3	1	40	19	5	0	.324	.375	.514	.889