most games with a run differential of -12 or below by a team in a season since 1901

Since 1901, the Philadelphia Athletics have the most games by a team with a run differential of -12 or below in a season, with 10 games in 1936.

	TEAM	G	DIFF	SEASON	W%	W	L	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Athletics	10	-148	1936	.000	0	10	330	22	70	12	1	2	20	21	3	48	1		354	90	15	0				.212	.266	.273	.538
2	Browns	8	-103	1936	.000	0	8	250	15	40	8	2	3	15	42	0	39	0		292	61	13	0				.160	.281	.244	.525
3	Reds	8	-118	1901	.000	0	8	273	29	68	10	2	0	20	19	2	-6	7		296	82	12	2				.249	.303	.300	.603
4	Cubs	7	-94	2010	.000	0	7	223	10	41	7	2	2	10	12	1	71	0	0	237	58	11	0	1	0	3	.184	.228	.260	.488
5	Athletics	7	-109	1955	.000	0	7	232	11	48	4	0	3	10	13	1	36	1	1	246	61	7	0	0	0	6	.207	.252	.263	.515
6	Athletics	7	-90	1940	.000	0	7	224	16	47	9	1	2	15	25	0	26	2		251	64	12	2			7	.210	.289	.286	.575
7	Athletics	7	-111	1939	.000	0	7	233	16	55	11	3	2	16	21	0	30	0		259	78	16	5			7	.236	.299	.335	.634
8	White Sox	7	-90	1934	.000	0	7	231	11	46	8	0	1	11	21	0	13	0		253	57	9	1				.199	.266	.247	.513
9	Phillies	7	-93	1930	.000	0	7	262	35	79	23	0	8	34	10	2	20	0		278	126	31	4				.302	.332	.481	.813
10	Indians	7	-92	1930	.000	0	7	231	19	52	8	4	2	19	22	0	11	0		258	74	14	5				.225	.292	.320	.613
11	Rockies	6	-99	2025	.000	0	6	189	5	34	5	1	1	5	14	0	51	1	1	203	44	7	0	0	0	6	.180	.236	.233	.469
12	Pirates	6	-92	2022	.000	0	6	188	10	28	8	1	3	9	17	2	46	1	0	209	47	12	0	2	0	3	.149	.225	.250	.475
13	Pirates	6	-82	2021	.000	0	6	191	4	35	7	0	2	3	13	0	49	0	1	204	48	9	0	0	0	3	.183	.235	.251	.487
14	Mariners	6	-87	2019	.000	0	6	190	8	29	6	1	2	7	7	1	73	0	0	198	43	9	0	0	0	1	.153	.187	.226	.413
15	Diamondbacks	6	-82	2005	.000	0	6	199	15	42	6	1	3	15	16	2	37	0	0	220	59	10	1	2	0	4	.211	.274	.296	.570
16	Indians	6	-80	1987	.000	0	6	192	11	34	8	0	1	9	13	2	30	3	1	208	45	9	0	1	0	3	.177	.236	.234	.470
17	Browns	6	-79	1937	.000	0	6	200	16	49	12	1	3	16	22	0	18	0		222	72	16	0				.245	.320	.360	.680
18	Browns	6	-87	1935	.000	0	6	200	9	47	6	2	1	9	15	0	24	0		215	60	9	0				.235	.288	.300	.588
19	Phillies	6	-92	1929	.000	0	6	216	17	61	12	3	4	17	11	1	19	1		229	91	19	1				.282	.320	.421	.741
20	Phillies	6	-82	1923	.000	0	6	220	27	65	10	1	1	24	10	1	16	0		233	80	12	2				.295	.329	.364	.693
21	Beaneaters	6	-84	1904	.000	0	6	201	11	44	6	2	0		16	1	19	4		218	54	8	0				.219	.280	.269	.548
22	Athletics	5	-70	2025	.000	0	5	156	8	29	4	0	4	8	10	0	50	0	0	166	45	8	0	0	0	7	.186	.235	.288	.523
23	Rockies	5	-64	2022	.000	0	5	158	5	30	2	0	0	4	9	3	44	0	1	171	32	2	0	1	0	5	.190	.246	.203	.448
24	Orioles	5	-67	2021	.000	0	5	164	11	35	8	0	5	11	10	1	48	0	0	175	58	13	0	0	0	5	.213	.263	.354	.617
25	Orioles	5	-71	2019	.000	0	5	161	13	26	6	1	4	10	11	0	39	0	0	174	46	11	0	2	0	2	.161	.213	.286	.498