The Kansas City Royals had the worst record by a team in June 2023, with a record of 6-20 in Junes.

	TEAM	REC	MONTH	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	Royals	6-20	June	.231	26	6	20	859	83	195	35	6	17	78	65	15	234	28	12	947	293	58	2	6	0	18	.227	.291	.341	.632
2	Mets	7-19	June	.269	26	7	19	865	115	197	35	2	36	114	72	18	231	23	1	965	344	73	3	7	1	21	.228	.298	.398	.696
3	Tigers	9-18	June	.333	27	9	18	900	105	205	35	8	28	101	75	3	247	6	5	987	340	71	3	6	0	18	.228	.288	.378	.665
4	Rockies	9-18	June	.333	27	9	18	917	113	227	43	6	26	107	72	12	273	14	6	1,009	360	75	2	6	3	20	.248	.309	.393	.701
5	Cardinals	8-15	June	.348	23	8	15	776	92	189	27	2	33	90	68	18	196	9	8	867	319	62	1	4	0	18	.244	.318	.411	.729
6	Nationals	9-16	June	.360	25	9	16	858	95	218	51	6	21	90	44	7	176	14	5	917	344	78	0	8	0	21	.254	.293	.401	.694
7	Mariners	9-15	June	.375	24	9	15	805	108	185	30	3	32	104	84	11	236	19	4	910	317	65	0	10	3	14	.230	.308	.394	.701
8	Athletics	10-16	June	.385	26	10	16	845	93	186	36	4	19	92	86	12	234	30	4	956	287	59	5	8	1	18	.220	.299	.340	.638
9	Pirates	11-15	June	.423	26	11	15	848	101	198	39	2	22	95	88	8	219	19	7	954	307	63	3	7	0	18	.233	.309	.362	.671
10	Twins	12-15	June	.444	27	12	15	897	95	205	49	1	33	92	70	12	275	14	0	985	355	83	3	3	2	20	.229	.292	.396	.688
11	Padres	12-15	June	.444	27	12	15	910	125	234	54	1	32	120	106	7	213	23	5	1,039	386	87	6	10	2	21	.257	.336	.424	.760
12	Red Sox	13-15	June	.464	28	13	15	952	117	234	58	6	24	110	91	13	237	21	6	1,064	376	88	2	6	3	19	.246	.318	.395	.713
13	Yankees	11-12	June	.478	23	11	12	746	88	155	37	2	29	83	59	9	181	9	4	818	283	68	0	4	2	17	.208	.273	.379	.652
14	Astros	13-14	June	.481	27	13	14	938	136	241	52	1	38	131	94	5	203	31	6	1,050	409	91	5	8	2	23	.257	.325	.436	.761
15	Dodgers	12-12	June	.500	24	12	12	825	126	200	38	3	34	123	92	16	217	16	4	946	346	75	1	12	3	8	.242	.326	.419	.745
16	White Sox	13-13	June	.500	26	13	13	886	97	202	39	1	37	93	65	13	243	19	5	969	354	77	2	3	4	16	.228	.290	.400	.689
17	Rangers	14-13	June	.519	27	14	13	964	140	264	65	1	42	134	105	5	231	9	2	1,078	457	108	0	4	2	11	.274	.347	.474	.821
18	Angels	14-13	June	.519	27	14	13	919	137	238	47	6	47	126	105	12	236	17	8	1,043	438	100	1	6	3	25	.259	.341	.477	.817
19	Brewers	14-13	June	.519	27	14	13	900	111	198	43	4	22	109	96	16	267	19	7	1,017	315	69	0	5	1	15	.220	.305	.350	.655
20	Guardians	14-12	June	.538	26	14	12	920	122	257	51	9	21	114	72	9	185	12	8	1,011	389	81	2	8	5	21	.279	.335	.423	.758
21	Orioles	13-11	June	.542	24	13	11	808	108	203	40	2	31	103	64	6	204	15	6	885	340	73	1	6	1	12	.251	.309	.421	.730
22	Cubs	14-11	June	.560	25	14	11	828	121	196	36	7	23	116	83	17	224	16	3	941	315	66	5	8	2	16	.237	.316	.380	.697
23	Blue Jays	16-11	June	.593	27	16	11	892	103	224	53	1	28	99	80	10	222	18	9	987	363	82	0	5	1	23	.251	.318	.407	.725
24	Diamondbacks	16-11	June	.593	27	16	11	924	144	246	58	5	32	139	102	8	211	28	4	1,048	410	95	4	10	1	22	.266	.341	.444	.785
25	Rays	17-10	June	.630	27	17	10	908	139	236	56	4	25	130	84	10	235	25	11	1,013	375	85	3	8	1	14	.260	.327	.413	.740