Pete Alonso will be 4th Met to hit 40 home runs.

Met rookie Pete Alonso will be only the fourth Met to hit at least 40 home runs in a season. Alonso hit his 39th homer tonight in Atlanta, which tied the National League rookie record set by Dodger Cody Bellinger in 2017. Two of them were catchers.

Rk	Player	HR	Year	Age	Tm	Lg	G	PA	AB	R	H	2B	3B	RBI	BB	IBB	SO	HBP	SH	SF	GDP	SB	CS	BA	OBP	SLG	OPS	Pos
1	Carlos Beltran	41	2006	29	NYM	NL	140	617	510	127	140	38	1	116	95	6	99	4	1	7	6	18	3	.275	.388	.594	.982	*8/HD
2	Todd Hundley	41	1996	27	NYM	NL	153	624	540	85	140	32	1	112	79	15	146	3	0	2	9	1	3	.259	.356	.550	.906	*2H
3	Mike Piazza	40	1999	30	NYM	NL	141	593	534	100	162	25	0	124	51	11	70	1	0	7	27	2	2	.303	.361	.575	.936	*2/HD

By contrast here are the Yankees to hit 40 home runs since 1962, the Mets first year:

Rk	Player	HR	Year	Age	Tm	Lg	G	PA	AB	R	H	2B	3B	RBI	BB	IBB	SO	HBP	SH	SF	GDP	SB	CS	BA	OBP	SLG	OPS	Pos
1	Alex Rodriguez	54	2007	31	NYY	AL	158	708	583	143	183	31	0	156	95	11	120	21	0	9	15	24	4	.314	.422	.645	1.067	*5/D
2	Aaron Judge	52	2017	25	NYY	AL	155	678	542	128	154	24	3	114	127	11	208	5	0	4	15	9	4	.284	.422	.627	1.049	*9D/H
3	Alex Rodriguez	48	2005	29	NYY	AL	162	715	605	124	194	29	1	130	91	8	139	16	0	3	8	21	6	.321	.421	.610	1.031	*5/6D
4	Tino Martinez	44	1997	29	NYY	AL	158	685	594	96	176	31	2	141	75	14	75	3	0	13	15	3	1	.296	.371	.577	.948	*3/DH
5	Curtis Granderson	43	2012	31	NYY	AL	160	684	596	102	138	18	4	106	75	4	195	5	1	7	5	10	3	.232	.319	.492	.811	*8/HD
6	Curtis Granderson	41	2011	30	NYY	AL	156	691	583	136	153	26	10	119	85	0	169	12	4	7	12	25	10	.262	.364	.552	.916	*8/HD
7	Jason Giambi	41	2003	32	NYY	AL	156	690	535	97	134	25	0	107	129	9	140	21	0	5	9	2	1	.250	.412	.527	.939	*3D/H
8	Jason Giambi	41	2002	31	NYY	AL	155	689	560	120	176	34	1	122	109	4	112	15	0	5	18	2	2	.314	.435	.598	1.034	*3D
9	Reggie Jackson	41	1980	34	NYY	AL	143	601	514	94	154	22	4	111	83	15	122	2	0	2	7	1	2	.300	.398	.597	.995	*9D/H

Aaron Judge has major league rookie record: 52 in 2017.