Walter Johnson has won the most career games in the month of June, with 78 wins.

Interpreted as:

What is the most MLB regular-season wins by a player in june?

	NAME	W	L	W%	G	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Walter Johnson W. Johnson	78	51	.605	144	124	1.76	624	100	22	6	1097.1	849		329	25	264	37	18			28	5.12	2.17	2.36	0.21		6.1	1.01	.243	2.70	6.96
2	Christy Mathewson C. Mathewson	75	26	.743	114	96	1.10	442	74	12	5	837.1	701		284	21	154	13	17			10	4.75	1.66	2.87	0.23		4.7	1.02	.256	3.05	7.53
3	Grover Alexander G. Alexander	65	36	.644	118	101	2.54	427	79	10	7	890.0	816		329	34	174	17	15			9	4.32	1.76	2.45	0.34		4.8	1.11	.266	3.33	8.25
4	Eddie Plank E. Plank	62	34	.646	114	100	1.39	425	74	14	5	839.2	750		304	11	212	23	10			8	4.56	2.27	2.00	0.12		6.6	1.15	.292	3.26	8.04
5	Tom Seaver T. Seaver	61	29	.678	110	110	2.84	601	44	12	0	834.1	669	263	287	67	222	16	0	20	3,337	18	6.48	2.39	2.71	0.72	18.0	6.7	1.07	.248	3.10	7.22
6	Jim Kaat J. Kaat	61	43	.587	167	122	3.36	472	37	4	3	900.2	926	336	400	67	229	27	15	21	3,813	25	4.72	2.29	2.06	0.67	12.4	6.0	1.28	.285	4.00	9.25
7	Phil Niekro P. Niekro	58	43	.574	149	122	3.37	600	39	5	7	917.1	851	343	384	91	323	26	21	9	3,876	53	5.89	3.17	1.86	0.89	15.5	8.3	1.28	.268	3.77	8.35
8	Lefty Grove L. Grove	57	30	.655	114	86	3.26	446	56	7	9	742.0	769	269	321	35	234	9	20		3,199	6	5.41	2.84	1.91	0.42	13.9	7.3	1.35	.297	3.89	9.33
9	Greg Maddux G. Maddux	54	39	.581	124	124	3.41	573	17	4	0	847.0	799	321	358	61	184	24	0	32	3,471	14	6.09	1.96	3.11	0.65	16.5	5.3	1.16	.281	3.80	8.49
10	Early Wynn E. Wynn	54	42	.563	117	108	3.74	436	51	11	1	775.1	734	322	357	69	286	12	8	6	3,303	9	5.06	3.32	1.52	0.80	13.2	8.7	1.32	.266	4.14	8.52
11	Roger Clemens R. Clemens	53	36	.596	123	122	3.53	775	13	5	0	818.1	788	321	361	74	261	27	0	11	3,469	31	8.52	2.87	2.97	0.81	22.3	7.5	1.28	.306	3.97	8.67
12	Don Sutton D. Sutton	53	45	.541	134	131	3.20	619	31	9	2	924.1	809	329	358	79	233	14	3	19	3,774	16	6.03	2.27	2.66	0.77	16.4	6.2	1.13	.258	3.49	7.88
13	Randy Johnson R. Johnson	52	30	.634	99	99	3.14	818	16	5	0	684.2	537	239	266	68	251	34	0	2	2,803	22	10.75	3.30	3.26	0.89	29.2	9.0	1.15	.287	3.50	7.06
14	Nolan Ryan N. Ryan	52	45	.536	130	127	3.15	925	36	11	0	883.1	679	309	356	59	407	23	1	14	3,694	47	9.42	4.15	2.27	0.60	25.0	11.0	1.23	.272	3.63	6.92
15	Steve Carlton S. Carlton	52	42	.553	125	123	3.59	722	42	8	0	877.1	823	350	383	65	332	11	1	30	3,701	35	7.41	3.41	2.17	0.67	19.5	9.0	1.32	.295	3.93	8.44
16	Red Ruffing R. Ruffing	51	38	.573	119	96	3.77	352	58	9	3	797.1	776	334	394	45	313	5	20		3,412	14	3.97	3.53	1.12	0.51	10.3	9.2	1.37	.271	4.45	8.76
17	Jack Morris J. Morris	50	25	.667	91	83	4.12	374	27	6	0	608.0	597	278	301	70	209	9	5	10	2,574	32	5.54	3.09	1.79	1.04	14.5	8.1	1.33	.276	4.46	8.84
18	Gaylord Perry G. Perry	50	53	.485	137	118	3.26	612	49	9	2	898.1	845	325	372	68	234	16	7	35	3,700	25	6.13	2.34	2.62	0.68	16.5	6.3	1.20	.281	3.73	8.47
19	Robin Roberts R. Roberts	50	43	.538	124	109	3.43	450	57	8	4	836.0	789	319	340	98	158	14	12		3,403	7	4.84	1.70	2.85	1.06	13.2	4.6	1.13	.258	3.66	8.49
20	Mike Mussina M. Mussina	49	29	.628	92	92	4.04	464	10	2	0	601.1	596	270	282	72	137	12	0	6	2,488	16	6.94	2.05	3.39	1.08	18.6	5.5	1.22	.291	4.22	8.92
21	Bert Blyleven B. Blyleven	49	46	.516	117	115	3.37	596	33	11	0	803.0	773	301	337	78	212	33	1	15	3,342	21	6.68	2.38	2.81	0.87	17.8	6.3	1.23	.287	3.78	8.66
22	Luis Tiant L. Tiant	49	21	.700	93	81	2.90	419	39	9	0	607.2	512	196	220	58	189	10	5	13	2,486	6	6.21	2.80	2.22	0.86	16.9	7.6	1.15	.251	3.26	7.58
23	Warren Spahn W. Spahn	49	59	.454	134	120	3.67	471	56	8	5	917.2	882	374	412	93	247	8	12		3,813	27	4.62	2.42	1.91	0.91	12.4	6.5	1.23	.264	4.04	8.65
24	Bob Feller B. Feller	49	27	.645	96	84	3.75	455	48	6	2	658.1	564	274	305	57	297	8	7	0	2,805	11	6.22	4.06	1.53	0.78	16.2	10.6	1.31	.255	4.17	7.71
25	Tommy John T. John	48	45	.516	132	120	3.51	390	26	7	0	810.2	865	316	369	39	214	13	5	27	3,424	38	4.33	2.38	1.82	0.43	11.4	6.3	1.33	.298	4.10	9.60