SP, 1st: most home runs facing starting pitcher first time.

For single seasons, From 1908 to 2019, vs. SP, 1st (within Times Facing Opponent in Game), (HR >= 15), sorted by greatest for this split

Only one hitter repeats: McGwire 5 of 30

Two in a season: 1927, 1961, 1987, 1996, 2000, 2001, 2002, 2013, 2017

Most home runs in a season: 65

Fewest home runs in a season: 29

Most at bats: 146

Fewest at bats: 64

Rk	I	Player	Split	Year	G	HR	HRtot	GS	PA	AB	R	H	2B	3B	RBI	SB	CS	BB	SO	BA	OBP	SLG	OPS	TB	GDP	HBP	SH	SF	IBB	ROE	BAbip	tOPS+	sOPS+
1		Mickey Mantle	vs. SP, 1st	1961	151	18	54		151	129		39	1	3	42	0	0	20	34	.302	.391	.775	1.166	100	0	0	0	2	1	3	.266	100	235
2		Alex Rodriguez	vs. SP, 1st	2001	162	18	52		162	143		53	10	0	40	0	0	15	38	.371	.438	.818	1.256	117	2	3	0	1	0	0	.398	141	237
3		Mark McGwire	vs. SP, 1st	1999	151	17	65		151	129		32	6	0	34	0	0	20	38	.248	.351	.690	1.041	89	7	1	0	1	0	2	.200	82	171
4		Jim Thome	vs. SP, 1st	2002	146	17	52		146	113		35	3	0	33	0	0	29	29	.310	.452	.788	1.240	89	0	2	0	2	2	0	.261	118	235
5		Jim Edmonds	vs. SP, 1st	2005	132	16	29		132	111		32	5	0	28	0	0	20	32	.288	.402	.766	1.167	85	2	1	0	0	1	0	.254	148	212
6		Mark McGwire	vs. SP, 1st	1996	125	16	52		125	105		29	4	0	32	0	0	19	32	.276	.384	.771	1.155	81	2	0	0	1	1	0	.224	88	204
7		Albert Pujols	vs. SP, 1st	2015	157	16	40		157	146		35	4	0	30	0	0	9	19	.240	.287	.596	.883	87	1	1	0	1	1	2	.170	118	144
8		Sammy Sosa	vs. SP, 1st	2001	160	16	64		160	131		38	7	0	34	0	0	26	36	.290	.406	.710	1.116	93	2	1	0	2	0	1	.272	89	201
9		Roy Campanella	vs. SP, 1st	1953	137	16	41		137	125		39	5	1	40	0	0	10	9	.312	.372	.752	1.124	94	3	2	0	0	2	2	.230	117	223
10		Giancarlo Stanton	vs. SP, 1st	2017	155	16	59		155	130		34	6	0	30	0	0	23	37	.262	.381	.677	1.058	88	3	2	0	0	0	2	.234	109	185
11		Mark McGwire	vs. SP, 1st	1992	136	16	42		136	112		37	10	0	37	0	0	19	18	.330	.419	.848	1.267	95	3	1	0	4	0	1	.256	154	271
12		Chris Davis	vs. SP, 1st	2013	160	16	53		160	136		48	10	0	38	0	0	20	45	.353	.438	.779	1.217	106	1	2	0	2	1	0	.416	141	242
13		Fred McGriff	vs. SP, 1st	1994	112	16	34		112	101		40	5	0	35	0	0	10	14	.396	.455	.921	1.376	93	1	1	0	0	1	1	.338	165	264
14		Mark McGwire	vs. SP, 1st	2000	78	16	32		78	64		26	1	0	36	0	0	11	22	.406	.513	1.172	1.685	75	1	3	0	0	2	0	.385	163	327
15		Babe Ruth	vs. SP, 1st	1927	151	16	60		151	114		44	2	2	32	0	0	34	20	.386	.520	.860	1.380	98	5	0	1	2	0	1	.350	118	298
16		Darryl Strawberry	vs. SP, 1st	1987	150	16	39		150	119		36	5	2	44	0	0	28	25	.303	.440	.782	1.222	93	3	2	0	1	1	2	.253	145	234
17		Pedro Alvarez	vs. SP, 1st	2013	149	15	36		149	137		35	4	0	27	0	0	11	39	.255	.315	.613	.929	84	1	1	0	0	0	2	.241	136	159
18		Reggie Jackson	vs. SP, 1st	1969	148	15	47		148	128		36	6	0	23	0	0	18	39	.281	.372	.680	1.051	87	2	1	0	1	1	1	.280	102	221
19		Carlos Delgado	vs. SP, 1st	2003	161	15	42		161	126		38	6	0	41	0	0	26	37	.302	.435	.706	1.141	89	3	6	0	3	0	0	.299	121	207
20		Richard Hidalgo	vs. SP, 1st	2000	149	15	44		149	129		43	8	0	41	0	0	11	25	.333	.409	.744	1.154	96	1	7	0	2	1	0	.308	122	196
21		Mark McGwire	vs. SP, 1st	1987	148	15	49		148	126		40	8	1	30	0	0	20	25	.317	.405	.754	1.159	95	1	0	0	2	0	2	.284	132	216
22	I	Johnny Mize	vs. SP, 1st	1948	139	15	40		139	122		40	7	0	38	0	0	17	9	.328	.410	.754	1.164	92	1	0	0	0	1	5	.255	138	240
23		Travis Shaw	vs. SP, 1st	2018	138	15	32		138	126		35	5	0	33	0	0	11	28	.278	.341	.675	1.015	85	3	1	0	0	0	1	.241	140	184
24		Frank Thomas	vs. SP, 1st	1993	152	15	41		152	119		42	7	0	35	0	0	29	14	.353	.467	.790	1.257	94	3	0	0	4	2	1	.287	140	248
25		Lou Gehrig	vs. SP, 1st	1927	155	15	47		155	122		46	9	2	46	0	0	24	18	.377	.471	.852	1.323	104	0	3	0	6	0	4	.326	111	281
26		Josh Donaldson	vs. SP, 1st	2017	112	15	33		112	100		28	6	0	23	0	0	11	26	.280	.357	.790	1.147	79	1	1	0	0	0	0	.220	134	205
27		Ryan Howard	vs. SP, 1st	2007	139	15	47		139	119		32	3	0	38	0	0	17	39	.269	.353	.672	1.025	80	2	0	0	3	6	0	.250	105	169
28		Rafael Palmeiro	vs. SP, 1st	2002	150	15	43		150	129		39	10	0	37	0	0	18	19	.302	.387	.729	1.115	94	1	1	0	2	1	0	.247	127	200
29		Gary Sheffield	vs. SP, 1st	1996	160	15	42		160	120		36	7	0	39	0	0	38	16	.300	.469	.733	1.202	88	3	1	0	1	2	1	.233	118	220
30		Jim Gentile	vs. SP, 1st	1961	140	15	46		140	118		36	5	1	49	0	0	17	29	.305	.393	.746	1.139	88	1	2	0	3	1	1	.273	108	227

https://www.baseball-reference.com/tiny/2JtKE