mlb team worst run differential per game 1980s

Between the 1980 and 1989 seasons, the Seattle Mariners had the lowest run differential per game by a team, with -0.63.

	TEAM	DIFF/G	DIFF	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	Mariners	-0.63	-984	1,568	.430	673	893	53,252	6,482	13,564	2,419	329	1,335	6,109	4,833	325	8,375	1,144	636	59,298	20,646	4,083	488	400	322	1,181	.255	.318	.388	.706
2	Indians	-0.45	-703	1,561	.455	710	849	53,458	6,889	14,182	2,314	323	1,167	6,442	5,168	283	7,673	1,207	592	59,939	20,643	3,804	511	519	379	1,270	.265	.330	.386	.717
3	Braves	-0.35	-548	1,559	.457	712	845	52,686	6,275	13,184	2,208	264	1,235	5,859	5,095	233	8,482	1,086	660	59,136	19,625	3,707	732	390	603	1,192	.250	.317	.372	.689
4	Twins	-0.35	-545	1,567	.468	733	833	53,485	6,818	14,086	2,541	381	1,350	6,436	4,621	309	7,853	697	451	59,302	21,439	4,272	423	464	377	1,307	.263	.323	.401	.724
5	Rangers	-0.26	-403	1,562	.462	720	839	53,286	6,636	13,946	2,326	334	1,255	6,219	4,737	286	8,308	984	583	59,225	20,705	3,915	473	443	350	1,274	.262	.323	.389	.711
6	Cubs	-0.23	-354	1,561	.472	735	821	53,407	6,571	13,736	2,378	378	1,293	6,151	4,759	215	9,025	1,214	543	59,461	20,749	4,049	644	436	588	1,073	.257	.318	.389	.707
7	Reds	-0.14	-219	1,566	.499	781	783	52,936	6,431	13,371	2,385	319	1,172	5,975	5,184	232	8,860	1,499	585	59,492	19,910	3,876	691	449	596	1,164	.253	.320	.376	.696
8	Padres	-0.11	-174	1,569	.486	762	805	53,169	6,197	13,568	2,105	374	954	5,753	4,877	199	8,448	1,431	662	59,475	19,283	3,433	826	404	692	1,161	.255	.318	.363	.681
9	White Sox	-0.09	-133	1,563	.486	758	802	52,998	6,780	13,680	2,364	375	1,298	6,374	4,659	366	8,360	1,120	515	59,078	20,688	4,037	574	481	405	1,161	.258	.320	.390	.710
10	Pirates	-0.08	-117	1,560	.470	732	825	53,121	6,313	13,627	2,481	374	1,051	5,936	4,846	225	8,376	1,388	699	59,434	20,009	3,906	751	491	646	1,131	.257	.319	.377	.695
11	Phillies	-0.04	-61	1,566	.501	783	780	53,069	6,633	13,519	2,352	404	1,263	6,220	5,295	294	9,226	1,304	577	59,735	20,468	4,019	627	450	588	1,173	.255	.323	.386	.709
12	Giants	0.01	22	1,568	.493	773	795	53,100	6,448	13,300	2,236	344	1,218	6,014	5,242	276	9,505	1,166	695	59,779	19,878	3,798	761	400	653	1,097	.250	.319	.374	.693
13	Orioles	0.02	39	1,562	.512	800	761	53,075	7,001	13,707	2,312	225	1,611	6,621	5,634	240	8,235	702	400	59,799	21,302	4,148	414	436	375	1,396	.258	.330	.401	.731
14	Athletics	0.07	113	1,567	.512	803	764	53,138	7,087	13,647	2,213	284	1,469	6,628	5,318	291	8,843	1,567	669	59,822	20,835	3,966	546	529	329	1,189	.257	.325	.392	.717
15	Angels	0.09	142	1,566	.500	783	783	53,345	7,077	13,771	2,264	287	1,454	6,606	5,417	347	8,501	826	468	60,312	20,971	4,005	746	457	406	1,276	.258	.328	.393	.721
16	Astros	0.1	154	1,569	.522	819	750	53,267	6,208	13,507	2,309	438	931	5,811	4,869	212	8,204	1,447	644	59,547	19,485	3,678	741	458	639	984	.254	.316	.366	.682
17	Expos	0.15	239	1,565	.519	811	752	53,182	6,375	13,556	2,539	420	1,081	5,947	4,953	295	8,519	1,677	665	59,551	20,178	4,040	684	437	704	1,081	.255	.319	.379	.699
18	Royals	0.16	254	1,561	.529	826	734	53,548	6,809	14,267	2,538	467	1,215	6,461	4,558	291	8,074	1,347	497	59,206	21,384	4,220	357	452	419	1,221	.266	.325	.399	.724
19	Brewers	0.17	260	1,565	.514	804	760	53,875	7,208	14,353	2,531	376	1,373	6,807	4,630	290	7,732	1,076	525	59,825	21,755	4,280	532	498	417	1,176	.266	.325	.404	.729
20	Mets	0.19	298	1,561	.523	816	743	52,968	6,482	13,474	2,306	298	1,207	6,040	5,014	261	9,108	1,380	571	59,362	19,997	3,811	658	461	652	1,089	.254	.319	.378	.697
21	Cardinals	0.23	366	1,562	.529	825	734	52,938	6,574	13,737	2,367	489	759	6,103	5,247	213	8,250	2,045	714	59,652	19,359	3,615	791	463	607	1,100	.259	.326	.366	.692
22	Dodgers	0.25	394	1,568	.527	825	741	53,186	6,175	13,462	2,126	240	1,188	5,794	4,786	260	8,521	1,253	603	59,545	19,632	3,554	887	426	629	1,080	.253	.316	.369	.685
23	Blue Jays	0.25	398	1,565	.523	817	746	53,883	7,056	14,219	2,570	460	1,457	6,611	4,713	328	8,227	1,206	629	59,725	22,080	4,487	365	436	374	1,154	.264	.324	.410	.734
24	Red Sox	0.27	421	1,564	.525	821	742	54,272	7,586	15,083	2,803	308	1,423	7,162	5,465	355	7,407	526	346	61,066	22,771	4,534	479	495	438	1,482	.278	.345	.420	.765
25	Tigers	0.36	568	1,567	.536	839	727	53,675	7,347	14,081	2,327	380	1,612	6,899	5,594	332	8,387	937	533	60,556	22,004	4,319	482	473	383	1,128	.262	.333	.410	.743