who has the worst record in a single-season in the last decade

Between the 2010 and 2019 seasons, the Baltimore Orioles had the worst record by a team in a season, with a record of 47-115 in 2018.

	TEAM	REC	SEASON	W%	G	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	Orioles	47-115	2018	.290	162	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
2	Tigers	47-114	2019	.292	161	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
3	Astros	51-111	2013	.315	162	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
4	Orioles	54-108	2019	.333	162	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
5	Astros	55-107	2012	.340	162	55	107	5,407	583	1,276	238	28	146	545	463	58	1,365	105	46	6,012	2,008	412	54	30	19	114	.236	.302	.371	.673
6	Astros	56-106	2011	.346	162	56	106	5,598	615	1,442	309	28	95	579	401	46	1,164	118	33	6,148	2,092	432	66	37	34	111	.258	.311	.374	.684
7	Marlins	57-105	2019	.352	162	57	105	5,512	615	1,326	265	18	146	593	395	73	1,469	55	30	6,044	2,065	429	31	33	16	139	.241	.298	.375	.673
8	Pirates	57-105	2010	.352	162	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
9	Royals	58-104	2018	.358	162	58	104	5,505	638	1,350	283	29	155	606	427	67	1,310	117	38	6,063	2,156	467	24	40	13	123	.245	.305	.392	.697
10	Royals	59-103	2019	.364	162	59	103	5,496	691	1,356	281	40	162	655	456	59	1,405	117	39	6,077	2,203	483	24	42	17	113	.247	.309	.401	.710
11	Twins	59-103	2016	.364	162	59	103	5,618	722	1,409	288	35	200	690	513	44	1,426	91	32	6,245	2,367	523	27	43	24	96	.251	.316	.421	.738
12	Cubs	61-101	2012	.377	162	61	101	5,411	613	1,297	265	36	137	570	447	43	1,235	94	45	5,967	2,045	438	42	24	29	125	.240	.302	.378	.680
13	Mariners	61-101	2010	.377	162	61	101	5,409	513	1,274	227	16	101	485	459	39	1,184	142	39	5,989	1,836	344	42	40	33	110	.236	.298	.339	.637
14	White Sox	62-100	2018	.383	162	62	100	5,523	656	1,332	259	40	182	639	425	66	1,594	98	41	6,070	2,217	481	24	32	18	99	.241	.302	.401	.703
15	Marlins	62-100	2013	.383	162	62	100	5,449	513	1,257	219	31	95	485	432	56	1,232	78	29	6,020	1,823	345	57	26	31	131	.231	.293	.335	.627
16	Phillies	63-99	2015	.389	162	63	99	5,529	626	1,374	272	37	130	586	387	54	1,274	88	32	6,052	2,110	439	53	29	20	119	.249	.303	.382	.684
17	White Sox	63-99	2013	.389	162	63	99	5,563	598	1,385	237	19	148	574	411	34	1,207	105	42	6,075	2,104	404	19	48	23	124	.249	.302	.378	.680
18	Twins	63-99	2011	.389	162	63	99	5,487	619	1,357	259	25	103	572	440	37	1,048	92	39	6,020	1,975	387	31	25	24	115	.247	.306	.360	.666
19	Marlins	63-98	2018	.391	161	63	98	5,488	589	1,303	222	24	128	554	455	73	1,384	45	31	6,079	1,957	374	32	31	26	119	.237	.303	.357	.659
20	Tigers	64-98	2018	.395	162	64	98	5,494	630	1,326	284	35	135	597	428	52	1,341	70	30	6,029	2,085	454	15	40	18	110	.241	.300	.380	.680
21	Giants	64-98	2017	.395	162	64	98	5,551	639	1,382	290	28	128	612	467	36	1,204	76	34	6,137	2,112	446	31	52	37	136	.249	.309	.380	.689
22	Tigers	64-98	2017	.395	162	64	98	5,556	735	1,435	289	35	187	699	503	52	1,313	65	34	6,149	2,355	511	11	27	21	128	.258	.324	.424	.748
23	Reds	64-98	2015	.395	162	64	98	5,571	640	1,382	257	27	167	613	496	42	1,255	134	38	6,196	2,194	451	47	40	38	112	.248	.312	.394	.706
24	Diamondbacks	64-98	2014	.395	162	64	98	5,552	615	1,379	259	47	118	573	398	43	1,165	86	33	6,085	2,086	424	56	36	31	115	.248	.302	.376	.678
25	Rockies	64-98	2012	.395	162	64	98	5,577	758	1,526	306	52	166	716	450	36	1,213	100	40	6,176	2,434	524	74	39	34	132	.274	.330	.436	.766