Between the 1997 and 1998 seasons, Mark McGwire hit the most home runs in a season, with 70 home runs in 1998.

Interpreted as:

most homers by a player in a season, 1997 to 1998

	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	Mark McGwire M. McGwire	70	1998	STL	155	509	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	Sammy Sosa S. Sosa	66	1998	CHC	159	643	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
3	Mark McGwire M. McGwire	58	1997	TOT	156	540	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
4	Ken Griffey Jr. K. Griffey Jr.	56	1998	SEA	161	633	120	180	33	3	146	76	7	121	20	5	720	387	92	0	4	11	14	.284	.365	.611	.977	135	46	.408	145	41.8
5	Ken Griffey Jr. K. Griffey Jr.	56	1997	SEA	157	608	125	185	34	3	147	76	8	121	15	4	704	393	93	0	12	23	12	.304	.382	.646	1.028	139	52.2	.421	155	49
6	Greg Vaughn G. Vaughn	50	1998	SDP	158	573	112	156	28	4	119	79	5	121	11	4	661	342	82	0	4	6	7	.272	.363	.597	.960	121	39.6	.403	151	42.7
7	Albert Belle A. Belle	49	1998	CWS	163	609	113	200	48	2	152	81	1	84	6	4	706	399	99	0	15	10	17	.328	.399	.655	1.055	150	62.1	.437	165	59.7
8	Larry Walker L. Walker	49	1997	COL	153	568	143	208	46	4	130	78	14	90	33	8	664	409	99	0	4	14	15	.366	.452	.720	1.172	168	86.1	.488	177	64.8
9	Jose Canseco J. Canseco	46	1998	TOR	151	583	98	138	26	0	107	65	6	159	29	17	658	302	72	0	4	5	7	.237	.318	.518	.836	94	12.7	.354	110	8.9
10	Vinny Castilla V. Castilla	46	1998	COL	162	645	108	206	28	4	144	40	6	89	5	9	697	380	78	0	6	7	24	.319	.362	.589	.951	127	40.6	.401	120	18
11	Juan Gonzalez J. Gonzalez	45	1998	TEX	154	606	110	193	50	2	157	46	6	126	2	1	669	382	97	0	11	9	20	.318	.366	.630	.997	129	46.3	.414	145	39.1
12	Manny Ramirez M. Ramirez	45	1998	CLE	150	571	108	168	35	2	145	76	6	121	5	3	663	342	82	0	10	6	18	.294	.377	.599	.976	125	43.3	.409	144	37.8
13	Andres Galarraga A. Galarraga	44	1998	ATL	153	555	103	169	27	1	121	63	25	146	7	6	648	330	72	0	5	11	8	.305	.397	.595	.991	127	47.2	.418	156	46.2
14	Tino Martinez T. Martinez	44	1997	NYY	158	594	96	176	31	2	141	75	3	75	3	1	685	343	77	0	13	14	15	.296	.371	.577	.948	121	36.3	.396	141	35.8
15	Rafael Palmeiro R. Palmeiro	43	1998	BAL	162	619	98	183	36	1	121	79	7	91	11	7	709	350	80	0	4	8	14	.296	.379	.565	.945	129	41.5	.401	144	40
16	Jeff Bagwell J. Bagwell	43	1997	HOU	162	566	109	162	40	2	135	127	16	122	31	10	717	335	85	0	8	27	10	.286	.425	.592	1.017	143	54.9	.424	163	57.6
17	Alex Rodriguez A. Rodriguez	42	1998	SEA	161	686	123	213	35	5	124	45	10	121	46	13	748	384	82	3	4	0	12	.310	.360	.560	.919	132	39	.394	136	34.6
18	Juan Gonzalez J. Gonzalez	42	1997	TEX	133	533	87	158	24	3	131	33	3	107	0	0	579	314	69	0	10	7	12	.296	.335	.589	.924	97	25.6	.385	127	20.1
19	Andres Galarraga A. Galarraga	41	1997	COL	154	600	120	191	31	3	140	54	17	141	15	8	674	351	75	0	3	2	16	.318	.389	.585	.974	131	47.8	.418	131	26.2
20	Mo Vaughn M. Vaughn	40	1998	BOS	154	609	107	205	31	2	115	61	8	144	0	0	681	360	73	0	3	13	13	.337	.402	.591	.993	135	50.9	.421	151	45.2
21	Barry Bonds B. Bonds	40	1997	SFG	159	532	123	155	26	5	101	145	8	87	37	8	690	311	71	0	5	34	13	.291	.446	.585	1.031	141	56.1	.430	165	57
22	Jay Buhner J. Buhner	40	1997	SEA	157	540	104	131	18	2	109	119	5	175	0	0	665	273	60	0	1	3	23	.243	.383	.506	.889	113	30.8	.388	133	27.8
23	Vinny Castilla V. Castilla	40	1997	COL	159	612	94	186	25	2	113	44	8	108	2	4	668	335	67	0	4	9	17	.304	.356	.547	.904	111	28.9	.384	109	7.6
24	Mike Piazza M. Piazza	40	1997	LAD	152	556	104	201	32	1	124	69	3	77	5	1	633	355	73	0	5	11	19	.362	.431	.638	1.070	141	63.2	.452	183	66.4
25	Jim Thome J. Thome	40	1997	CLE	147	496	104	142	25	0	102	120	3	146	1	1	627	287	65	0	8	9	9	.286	.423	.579	1.001	126	48.6	.425	156	44.9