worst run differential of all-time by a team with 90+ wins in a season

The Seattle Mariners have the lowest run differential by a team with 90+ wins in a season, with a differential of -51 runs in 2021.

	TEAM	DIFF	W	SEASON	L	W%	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Mariners	-51	90	2021	72	.556	162	5,355	697	1,209	233	11	199	673	535	72	1,492	64	24	6,007	2,061	443	9	36	8	92	.226	.303	.385	.688
2	Mets	-24	90	1984	72	.556	162	5,438	652	1,400	235	25	107	607	500	20	1,001	149	54	6,066	2,006	367	59	49	73	132	.257	.320	.369	.689
3	Diamondbacks	-20	90	2007	72	.556	162	5,398	712	1,350	286	40	171	687	532	57	1,111	109	24	6,100	2,229	497	55	58	38	121	.250	.321	.413	.734
4	Giants	-9	90	1997	72	.556	162	5,485	784	1,415	266	37	172	746	642	46	1,120	121	49	6,296	2,271	475	64	59	72	111	.258	.337	.414	.751
5	Orioles	7	93	2012	69	.574	162	5,560	712	1,375	270	16	214	677	480	50	1,315	58	29	6,158	2,319	500	38	30	24	152	.247	.311	.417	.728
6	Rangers	8	95	2016	67	.586	162	5,525	765	1,446	257	23	215	746	436	70	1,220	99	36	6,089	2,394	495	18	40	23	114	.262	.322	.433	.755
7	Cardinals	16	90	2014	72	.556	162	5,426	619	1,371	275	21	105	585	471	86	1,133	57	32	6,086	2,003	401	64	39	28	140	.253	.320	.369	.689
8	Expos	21	91	1987	71	.562	162	5,527	741	1,467	310	39	120	695	501	35	918	166	74	6,162	2,215	469	57	42	77	100	.265	.328	.401	.729
9	Reds	22	92	1978	69	.571	161	5,392	710	1,378	270	32	136	669	636	26	899	137	58	6,192	2,120	438	84	54	72	112	.256	.334	.393	.727
10	Orioles	26	90	1978	71	.559	161	5,422	659	1,397	248	19	154	612	552	22	864	75	61	6,079	2,145	421	41	42	34	136	.258	.326	.396	.722
11	Angels	29	90	1985	72	.556	162	5,442	732	1,364	215	31	153	685	648	39	902	106	51	6,263	2,100	399	99	35	51	138	.251	.333	.386	.719
12	Senators	30	90	1913	64	.584	155	5,074	596	1,281	156	81	19	484	440	42	595	287		5,670	1,656	256	114				.252	.317	.326	.644
13	Cardinals	34	90	2021	72	.556	162	5,351	706	1,303	261	22	198	678	478	86	1,341	89	22	5,999	2,202	481	40	44	32	99	.244	.313	.412	.725
14	Rockies	35	91	2018	72	.558	163	5,541	780	1,418	280	42	210	748	507	51	1,397	95	33	6,178	2,412	532	42	37	38	114	.256	.322	.435	.757
15	Dodgers	38	92	1954	62	.597	154	5,251	778	1,418	246	56	186	741	634	35	625	46	39	6,058	2,334	488	79	59		137	.270	.349	.444	.794
16	Cubs	39	90	1998	73	.552	163	5,649	831	1,494	250	34	212	788	601	39	1,223	65	44	6,393	2,448	496	67	37	51	123	.264	.337	.433	.771
17	Cardinals	40	90	1971	72	.556	163	5,610	739	1,542	225	54	95	686	543	25	757	124	53	6,300	2,160	374	63	59	67	139	.275	.338	.385	.723
18	Yankees	42	92	2021	70	.568	162	5,331	711	1,266	213	12	222	666	621	63	1,482	63	18	6,059	2,169	447	10	34	14	154	.237	.322	.407	.729
19	Robins	42	92	1924	62	.597	154	5,339	717	1,534	227	54	72	662	447	22	357	34	46	5,951	2,085	353	143				.287	.345	.391	.735
20	Twins	43	90	2003	72	.556	162	5,655	801	1,567	318	45	155	755	512	63	1,027	94	44	6,324	2,440	518	42	52	36	139	.277	.341	.431	.772
21	Athletics	44	93	2006	69	.574	162	5,500	771	1,429	266	22	175	735	650	50	976	61	20	6,281	2,264	463	25	56	28	170	.260	.340	.412	.752
22	Brewers	45	91	1987	71	.562	162	5,625	862	1,552	272	46	163	832	598	32	1,040	176	74	6,368	2,405	481	63	50	40	104	.276	.346	.428	.774
23	Dodgers	45	91	1983	71	.562	163	5,440	654	1,358	197	34	146	613	541	22	925	166	76	6,129	2,061	377	86	40	61	112	.250	.318	.379	.697
24	Orioles	47	91	1974	71	.562	162	5,535	659	1,418	226	27	116	608	509	58	770	145	58	6,230	2,046	369	72	56	61	124	.256	.322	.370	.692
25	Royals	48	91	1985	71	.562	162	5,500	687	1,384	261	49	154	657	473	36	840	128	48	6,094	2,205	464	44	41	57	125	.252	.313	.401	.714