Mark McGwire has the fewest at-bats per home run with 502+ at-bats in a season, with 7.27 in 1998.

Interpreted as:

least ab/hr by a player in a season with 502 or more ab

	NAME	AB/HR	AB	HR	SEASON	TM	G	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	Mark McGwire M. McGwire	7.27	509	70	1998	STL	155	130	152	21	0	147	162	6	155	1	0	681	383	91	0	4	28	8	.299	.470	.752	1.222	176	91.7	.492	205	90.7
2	Mark McGwire M. McGwire	8.02	521	65	1999	STL	153	118	145	21	1	147	133	2	141	0	0	661	363	87	0	5	21	12	.278	.424	.697	1.120	150	64.2	.453	169	61.5
3	Babe Ruth B. Ruth	9	540	60	1927	NYY	151	158	192	29	8	165	137	0	89	7	6	691	417	97	14				.356	.486	.772	1.258	195	109.9	.545	212	104.8
4	Sammy Sosa S. Sosa	9.02	577	64	2001	CHC	160	146	189	34	5	160	116	6	153	0	2	711	425	103	0	12	37	6	.328	.437	.737	1.174	171	82.7	.465	186	79.8
5	Babe Ruth B. Ruth	9.15	540	59	1921	NYY	152	177	204	44	16	168	145	4	81	17	13	693	457	119	4				.378	.512	.846	1.359	214	127.8	.575	224	118.7
6	Aaron Judge A. Judge	9.19	570	62	2022	NYY	157	133	177	28	0	131	111	6	175	16	3	692	391	90	0	5	19	14	.311	.425	.686	1.111	161	81.6	.458	208	84.5
7	Mark McGwire M. McGwire	9.31	540	58	1997	TOT	156	86	148	27	0	123	101	9	159	3	0	657	349	85	0	7	16	9	.274	.393	.646	1.039	134	52.9	.429	161	51.4
8	Mickey Mantle M. Mantle	9.52	514	54	1961	NYY	153	131	163	16	6	128	126	0	112	12	1	646	353	76	1	5	9	2	.317	.448	.687	1.135	156	79.6	.478	197	78.8
9	Hank Greenberg H. Greenberg	9.59	556	58	1938	DET	155	143	175	23	4	147	119	3	92	7	5	681	380	85	3				.315	.438	.683	1.122	166	80.3	.489	162	62
10	Aaron Judge A. Judge	9.64	559	58	2024	NYY	158	122	180	36	1	144	133	9	171	10	0	703	392	95	0	2	20	22	.322	.458	.701	1.159	176	93.7	.476	219	95.5
11	Roger Maris R. Maris	9.67	590	61	1961	NYY	161	132	159	16	4	141	94	7	67	0	0	698	366	81	0	7	0	16	.269	.372	.620	.993	138	55.9	.424	162	55.1
12	Sammy Sosa S. Sosa	9.74	643	66	1998	CHC	159	134	198	20	0	158	73	1	171	18	9	722	416	86	0	5	14	20	.308	.377	.647	1.024	146	56.6	.425	159	53.7
13	Sammy Sosa S. Sosa	9.92	625	63	1999	CHC	162	114	180	24	2	141	78	3	171	7	8	712	397	89	0	6	8	17	.288	.367	.635	1.002	138	45.2	.414	143	41.3
14	Babe Ruth B. Ruth	9.93	536	54	1928	NYY	154	163	173	29	8	146	137	3	87	4	5	684	380	91	8				.323	.463	.709	1.172	174	90.6	.510	201	89.3
15	Ryan Howard R. Howard	10.02	581	58	2006	PHI	159	104	182	25	1	149	108	9	181	0	0	704	383	84	0	6	37	7	.313	.425	.659	1.084	151	63	.436	162	57.5
16	Jimmie Foxx J. Foxx	10.09	585	58	1932	PHA	154	151	213	33	9	169	116	0	96	3	7	701	438	100	0				.364	.469	.749	1.218	193	105.6	.522	198	95.8
17	Giancarlo Stanton G. Stanton	10.12	597	59	2017	MIA	159	123	168	32	0	132	85	7	163	2	2	692	377	91	0	3	13	13	.281	.376	.631	1.007	137	52.3	.410	158	51.9
18	Ralph Kiner R. Kiner	10.17	549	54	1949	PIT	152	116	170	19	5	127	117	1	61	6		667	361	78	0			10	.310	.432	.658	1.089	153	73.4	.484	179	65.8
19	Mickey Mantle M. Mantle	10.25	533	52	1956	NYY	150	132	188	22	5	130	112	2	99	10	1	652	376	79	1	4	6	4	.353	.464	.705	1.169	164	88.9	.498	202	84.6
20	David Ortiz D. Ortiz	10.33	558	54	2006	BOS	151	115	160	29	2	137	119	4	117	1	0	686	355	85	0	5	23	12	.287	.413	.636	1.049	142	56	.427	157	50.9
21	Aaron Judge A. Judge	10.42	542	52	2017	NYY	155	128	154	24	3	114	127	5	208	9	4	678	340	79	0	4	11	15	.284	.422	.627	1.049	145	62.5	.430	174	61.5
22	Hack Wilson H. Wilson	10.45	585	56	1930	CHC	155	146	208	35	6	191	105	1	84	3		709	423	97	18				.356	.454	.723	1.177	189	89	.497	171	78.9
23	Jose Bautista J. Bautista	10.54	569	54	2010	TOR	161	109	148	35	3	124	100	10	116	9	2	683	351	92	0	4	2	10	.260	.378	.617	.995	134	55.1	.422	165	52.4
24	Babe Ruth B. Ruth	10.57	518	49	1930	NYY	145	150	186	28	9	153	136	1	61	10	10	676	379	86	21				.359	.493	.732	1.225	192	97	.517	204	100.6
25	Willie Stargell W. Stargell	10.65	511	48	1971	PIT	141	104	151	26	0	125	83	7	154	0	0	606	321	74	0	5	20	8	.295	.398	.628	1.026	122	59.7	.445	186	57.3