which mlb team had the worst run differential season since 1970

Since 1970, the Colorado Rockies have the lowest run differential by a team in a season, with a differential of -424 runs this season.

	TEAM	DIFF	SEASON	G	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	Rockies	-424	2025	162	.265	43	119	5,408	597	1,281	253	37	160	581	395	48	1,531	87	39	5,907	2,088	450	21	35	5	118	.237	.293	.386	.679
2	Athletics	-339	2023	162	.309	50	112	5,311	585	1,187	225	21	171	563	498	85	1,496	149	31	5,958	1,967	417	28	36	12	125	.223	.298	.370	.669
3	Tigers	-337	2003	162	.265	43	119	5,466	591	1,312	201	39	153	553	443	47	1,099	98	63	6,070	2,050	393	65	49	24	114	.240	.300	.375	.675
4	Tigers	-333	2019	161	.292	47	114	5,549	582	1,333	292	41	149	556	391	48	1,595	57	20	6,039	2,154	482	9	42	14	108	.240	.294	.388	.682
5	Tigers	-320	1996	162	.327	53	109	5,530	783	1,413	257	21	204	741	546	29	1,268	87	50	6,202	2,324	482	48	49	26	132	.256	.323	.420	.743
6	White Sox	-306	2024	162	.253	41	121	5,383	507	1,187	226	9	133	485	395	43	1,403	90	33	5,866	1,830	368	18	27	8	116	.221	.278	.340	.618
7	Orioles	-297	2021	162	.321	52	110	5,420	659	1,296	266	15	195	632	451	65	1,454	54	23	5,981	2,177	476	14	31	12	105	.239	.304	.402	.705
8	Tigers	-289	2002	161	.342	55	106	5,406	575	1,340	265	37	124	546	363	64	1,035	65	44	5,920	2,051	426	30	57	22	125	.248	.300	.379	.679
9	Padres	-289	1974	162	.370	60	102	5,415	541	1,239	196	27	99	506	564	20	900	85	45	6,117	1,786	322	83	35	52	105	.229	.302	.330	.632
10	Athletics	-287	1979	162	.333	54	108	5,348	573	1,276	188	32	108	541	482	20	751	104	69	5,971	1,852	328	75	46	36	131	.239	.302	.346	.648
11	Diamondbacks	-284	2004	162	.315	51	111	5,544	615	1,401	295	38	135	582	441	35	1,022	53	32	6,113	2,177	468	56	37	38	137	.253	.310	.393	.703
12	Pirates	-279	2010	162	.352	57	105	5,386	587	1,303	276	27	126	570	463	33	1,207	87	36	5,973	2,011	429	58	33	28	119	.242	.304	.373	.678
13	Orioles	-270	2018	162	.290	47	115	5,507	622	1,317	242	15	188	593	422	57	1,412	81	22	6,034	2,153	445	13	35	19	132	.239	.298	.391	.689
14	Marlins	-256	1998	162	.333	54	108	5,558	667	1,381	277	36	114	621	525	45	1,120	115	57	6,227	2,072	427	70	29	30	121	.248	.317	.373	.690
15	Nationals	-252	2022	162	.340	55	107	5,434	603	1,351	252	20	136	579	442	60	1,221	75	31	5,993	2,051	408	20	37	12	141	.249	.310	.377	.688
16	Orioles	-252	2019	162	.333	54	108	5,596	729	1,379	252	25	213	698	462	71	1,435	84	30	6,188	2,320	490	22	37	8	111	.246	.310	.415	.725
17	Blue Jays	-249	1979	162	.327	53	109	5,423	613	1,362	253	34	95	562	448	36	663	75	56	6,010	1,968	382	65	38	21	131	.251	.311	.363	.673
18	Rockies	-247	2024	162	.377	61	101	5,454	682	1,319	277	25	179	655	453	51	1,617	85	31	6,022	2,183	481	19	45	20	126	.242	.304	.400	.704
19	Devil Rays	-245	2002	161	.342	55	106	5,604	673	1,418	297	35	133	640	456	58	1,115	102	45	6,198	2,184	465	44	36	29	116	.253	.314	.390	.704
20	Orioles	-239	1988	161	.335	54	107	5,358	550	1,275	199	20	137	517	504	32	869	69	44	5,979	1,925	356	40	45	31	140	.238	.305	.359	.664
21	Astros	-238	2013	162	.315	51	111	5,457	610	1,307	266	16	148	566	426	52	1,535	110	61	6,019	2,049	430	46	38	17	110	.240	.299	.375	.674
22	Rockies	-236	2023	162	.364	59	103	5,496	721	1,368	305	31	163	685	447	59	1,543	76	25	6,054	2,224	499	11	41	8	124	.249	.310	.405	.715
23	Royals	-234	2005	162	.346	56	106	5,503	701	1,445	289	34	126	653	424	63	1,008	53	33	6,086	2,180	449	46	50	23	139	.263	.320	.396	.716
24	Mariners	-231	1977	162	.395	64	98	5,460	624	1,398	218	33	133	589	426	35	769	110	67	6,044	2,081	384	81	42	22	114	.256	.312	.381	.693
25	Pirates	-226	2022	162	.383	62	100	5,331	591	1,186	221	29	158	555	476	54	1,497	89	32	5,912	1,939	408	19	32	14	96	.222	.291	.364	.655