Willie Mays homered 20 times in his rookie season in 1951.

	NAME	HR	SEASON	TM	G	AB	R	H	2B	3B	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Willie Mays W. Mays	20	1951	NYG	121	464	59	127	22	5	68	57	2	60	7	4	524	219	47	1			11	.274	.356	.472	.828	78	16.8	.378	120	12.9
2	Willie Mays W. Mays	4	1952	NYG	34	127	17	30	2	4	23	16	1	17	4	1	144	52	10	0			2	.236	.326	.409	.736	17	1.6	.341	102	0.4
3	Willie Mays W. Mays	41	1954	NYG	151	565	119	195	33	13	110	66	2	57	8	5	640	377	87	0	7		12	.345	.411	.667	1.078	141	68.5	.471	174	60.3
4	Willie Mays W. Mays	51	1955	NYG	152	580	123	185	18	13	127	79	4	60	24	4	670	382	82	0	7	13	12	.319	.400	.659	1.059	143	65.3	.450	171	59.7
5	Willie Mays W. Mays	36	1956	NYG	152	578	101	171	27	8	84	68	1	65	40	10	650	322	71	0	3	20	16	.296	.369	.557	.926	111	35.6	.395	142	32.9
6	Willie Mays W. Mays	35	1957	NYG	152	585	112	195	26	20	97	76	1	62	38	19	668	366	81	0	6	15	14	.333	.407	.626	1.033	137	62.6	.439	169	56.2
7	Willie Mays W. Mays	29	1958	SFG	152	600	121	208	33	11	96	78	1	56	31	6	685	350	73	0	6	12	11	.347	.419	.583	1.002	137	59.7	.431	162	53
8	Willie Mays W. Mays	34	1959	SFG	151	575	125	180	43	5	104	65	2	58	27	4	648	335	82	0	6	9	11	.313	.381	.583	.964	122	48.2	.413	152	42.4
9	Willie Mays W. Mays	29	1960	SFG	153	595	107	190	29	12	103	61	4	70	25	10	669	330	70	0	9	11	15	.319	.381	.555	.936	119	44.2	.404	154	42.8
10	Willie Mays W. Mays	40	1961	SFG	154	572	129	176	32	3	123	81	2	77	18	9	659	334	75	0	4	15	14	.308	.393	.584	.977	127	49	.417	155	45.9
11	Willie Mays W. Mays	49	1962	SFG	162	621	130	189	36	5	141	78	4	85	18	2	706	382	90	0	3	11	19	.304	.384	.615	.999	141	59.1	.428	163	55.4
12	Willie Mays W. Mays	38	1963	SFG	157	596	115	187	32	7	103	66	2	83	8	3	671	347	77	0	7	5	15	.314	.380	.582	.962	127	56.9	.417	174	54.1
13	Willie Mays W. Mays	47	1964	SFG	157	578	121	171	21	9	111	82	1	72	19	5	665	351	77	1	3	13	11	.296	.383	.607	.990	130	58.9	.424	173	54.8
14	Willie Mays W. Mays	52	1965	SFG	157	558	118	177	21	3	112	76	0	71	9	4	638	360	76	2	2	16	11	.317	.398	.645	1.043	136	68.2	.448	186	62.7
15	Willie Mays W. Mays	37	1966	SFG	152	552	99	159	29	4	103	70	2	81	5	1	629	307	70	1	4	11	13	.288	.368	.556	.924	111	44.6	.397	151	37.8
16	Willie Mays W. Mays	22	1967	SFG	141	486	83	128	22	2	70	51	2	92	6	0	544	220	46	2	3	7	12	.263	.334	.453	.787	75	20.2	.350	125	14.9
17	Willie Mays W. Mays	23	1968	SFG	148	498	84	144	20	5	79	67	2	81	12	6	573	243	48	0	6	7	13	.289	.372	.488	.860	90	37.3	.387	161	34.3
18	Willie Mays W. Mays	13	1969	SFG	117	403	64	114	17	3	58	49	3	71	6	2	459	176	33	0	4	7	8	.283	.362	.437	.798	64	15.2	.358	123	12.3
19	Willie Mays W. Mays	28	1970	SFG	139	478	94	139	15	2	83	79	3	90	5	0	566	242	45	0	6	3	7	.291	.390	.506	.897	98	34.3	.397	141	28.6
20	Willie Mays W. Mays	18	1971	SFG	136	417	82	113	24	5	61	112	3	123	23	3	537	201	47	1	4	11	8	.271	.425	.482	.907	93	37.8	.406	158	34
21	Willie Mays W. Mays	8	1972	TOT	88	244	35	61	11	1	22	60	1	48	4	5	309	98	20	4	0	6	9	.250	.400	.402	.802	45	14.3	.369	133	11.1
22	Willie Mays W. Mays	6	1973	NYM	66	209	24	44	10	0	25	27	1	47	1	0	239	72	16	1	1	0	7	.211	.303	.344	.647	23	-3.3	.301	87	-3.6