The New York Mets had their highest slugging percentage in a season in 2020, with a slugging percentage of .459.

Interpreted as:

highest slg in a regular season by mets

	TEAM	SLG	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	OPS
1	Mets	.459	2020	60	.433	26	34	2,023	286	551	106	7	86	278	197	45	498	20	10	2,279	929	199	1	13	8	53	.272	.348	.807
2	Mets	.445	2006	162	.599	97	65	5,558	834	1,469	323	41	200	800	547	62	1,071	146	35	6,291	2,474	564	77	47	63	114	.264	.334	.780
3	Mets	.442	2019	162	.531	86	76	5,624	791	1,445	280	17	242	767	516	95	1,384	56	27	6,290	2,485	539	28	27	34	129	.257	.328	.770
4	Mets	.434	1999	163	.595	97	66	5,572	853	1,553	297	14	181	814	717	48	994	150	61	6,454	2,421	492	63	54	53	149	.279	.363	.797
5	Mets	.434	2017	162	.432	70	92	5,510	735	1,379	286	28	224	713	529	57	1,291	58	23	6,169	2,393	538	36	37	31	118	.250	.320	.755
6	Mets	.434	1987	162	.568	92	70	5,601	823	1,499	287	34	192	771	592	31	1,012	159	49	6,333	2,430	513	70	39	74	94	.268	.339	.773
7	Mets	.432	2007	162	.543	88	74	5,605	804	1,543	294	27	177	761	549	54	981	200	46	6,343	2,422	498	77	58	64	114	.275	.342	.775
8	Mets	.430	2000	162	.580	94	68	5,486	807	1,445	281	20	198	761	675	45	1,037	66	46	6,327	2,360	499	70	51	42	122	.263	.346	.776
9	Mets	.424	2025	33	.667	22	11	1,107	159	277	62	8	38	152	117	18	247	19	5	1,254	469	108	0	12	6	25	.250	.329	.752
10	Mets	.420	2008	162	.549	89	73	5,606	799	1,491	274	38	172	751	619	39	1,024	138	36	6,386	2,357	484	73	49	71	129	.266	.340	.761
11	Mets	.417	2016	162	.537	87	75	5,459	671	1,342	240	19	218	649	517	62	1,302	42	18	6,114	2,274	477	35	41	43	123	.246	.316	.733
12	Mets	.416	2005	162	.512	83	79	5,505	722	1,421	279	32	175	683	486	48	1,075	153	40	6,146	2,289	486	69	38	49	103	.258	.322	.738
13	Mets	.415	2024	162	.549	89	73	5,510	768	1,357	279	15	207	735	514	92	1,382	106	22	6,162	2,287	501	10	36	11	105	.246	.319	.734
14	Mets	.412	1996	162	.438	71	91	5,618	746	1,515	267	47	147	697	445	33	1,069	97	48	6,220	2,317	461	75	49	54	114	.270	.324	.737
15	Mets	.412	2022	162	.623	101	61	5,489	772	1,422	272	27	171	735	510	112	1,217	62	22	6,175	2,261	470	20	44	25	122	.259	.332	.744
16	Mets	.409	2004	162	.438	71	91	5,532	684	1,376	289	20	185	658	512	61	1,159	107	23	6,208	2,260	494	69	34	54	129	.249	.317	.726
17	Mets	.408	1990	162	.562	91	71	5,504	775	1,410	278	21	172	734	536	32	851	110	33	6,182	2,246	471	54	56	65	89	.256	.323	.731
18	Mets	.407	2023	162	.463	75	87	5,363	717	1,276	221	21	215	692	525	107	1,331	118	15	6,052	2,184	457	19	38	11	105	.238	.316	.723
19	Mets	.405	1997	162	.543	88	74	5,524	777	1,448	274	28	153	741	550	57	1,029	97	74	6,248	2,237	455	58	59	45	122	.262	.332	.737
20	Mets	.401	1986	162	.667	108	54	5,558	783	1,462	261	31	148	730	631	31	968	118	48	6,348	2,229	440	75	53	68	122	.263	.339	.740
21	Mets	.400	1995	144	.479	69	75	4,958	657	1,323	218	34	125	617	446	42	994	58	39	5,581	1,984	377	92	43	44	105	.267	.330	.730
22	Mets	.400	2015	162	.556	90	72	5,527	683	1,351	295	17	177	654	488	68	1,290	51	25	6,144	2,211	489	29	32	42	130	.244	.312	.712
23	Mets	.396	1988	160	.625	100	60	5,408	703	1,387	251	24	152	659	544	32	842	140	51	6,105	2,142	427	65	56	79	94	.256	.325	.721
24	Mets	.395	2002	161	.466	75	86	5,496	690	1,409	238	22	160	650	486	63	1,044	87	42	6,150	2,171	420	75	30	46	142	.256	.322	.717
25	Mets	.394	2009	162	.432	70	92	5,453	671	1,472	295	49	95	631	526	36	928	122	44	6,158	2,150	439	88	55	49	144	.270	.335	.729