Mudcat Grant pitched the most innings for the Twins in 1965, with 270.1 innings.

	NAME	IP	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Mudcat Grant M. Grant	270.1	1965	MIN	41	21	7	.750	39	3.30	142	14	6	0	252	99	107	34	61	0	0	2	1,095	8	4.73	2.03	2.33	1.13	13.0	5.6	1.16	.254	3.56	93	3.78	103	8.39	-2.3
2	Jim Kaat J. Kaat	264.1	1965	MIN	45	18	11	.621	42	2.83	154	7	2	2	267	83	121	25	63	5	2	6	1,115	3	5.24	2.15	2.44	0.85	13.8	5.7	1.25	.279	4.12	79	3.35	91	9.09	9.9
3	Jim Perry J. Perry	167.2	1965	MIN	36	12	7	.632	19	2.63	88	4	2	0	142	49	57	18	47	3	3	2	679	4	4.72	2.52	1.87	0.97	13.0	6.9	1.13	.237	3.06	74	3.76	102	7.62	-1.1
4	Camilo Pascual C. Pascual	156.0	1965	MIN	27	9	3	.750	27	3.35	96	5	1	0	126	58	67	12	63	5	0	0	659	7	5.54	3.63	1.52	0.69	14.6	9.6	1.21	.236	3.87	94	3.59	98	7.27	1.8
5	Dave Boswell D. Boswell	106.0	1965	MIN	27	6	5	.545	12	3.40	85	1	0	0	77	40	43	20	46	5	1	0	435	1	7.22	3.91	1.85	1.70	19.5	10.6	1.16	.204	3.65	95	4.81	131	6.54	-12.7
6	Al Worthington A. Worthington	80.1	1965	MIN	62	10	7	.588	0	2.13	59	0	0	21	57	19	25	4	41	3	38	2	333	1	6.61	4.59	1.44	0.45	17.7	12.3	1.22	.235	2.80	60	3.34	91	6.39	3.1
7	Jim Merritt J. Merritt	76.2	1965	MIN	16	5	4	.556	9	3.17	61	1	0	2	68	27	29	11	20	0	5	1	311	0	7.16	2.35	3.05	1.29	19.6	6.4	1.15	.260	3.40	89	3.57	97	7.98	1
8	Johnny Klippstein J. Klippstein	76.1	1965	MIN	56	9	3	.750	0	2.24	59	0	0	5	59	19	22	8	31	3	24	4	314	4	6.96	3.66	1.90	0.94	18.8	9.9	1.18	.239	2.59	63	3.67	100	6.96	0.2
9	Dick Stigman D. Stigman	70.0	1965	MIN	33	4	2	.667	8	4.37	70	0	0	4	59	34	34	14	33	0	12	3	296	5	9.00	4.24	2.12	1.80	23.6	11.1	1.31	.251	4.37	123	4.53	123	7.59	-6.3
10	Mel Nelson M. Nelson	54.2	1965	MIN	28	0	4	.000	3	4.12	31	0	0	3	57	25	29	7	23	2	13	3	247	4	5.10	3.79	1.35	1.15	12.6	9.3	1.46	.272	4.77	116	4.42	120	9.38	-4.2
11	Bill Pleis B. Pleis	51.1	1965	MIN	41	4	4	.500	2	2.98	33	0	0	4	49	17	20	3	27	0	16	5	229	2	5.79	4.73	1.22	0.53	14.4	11.8	1.48	.277	3.51	84	3.57	97	8.59	0.7
12	Jerry Fosnow J. Fosnow	46.2	1965	MIN	29	3	3	.500	0	4.44	35	0	0	2	33	23	29	7	25	1	11	2	202	2	6.75	4.82	1.40	1.35	17.3	12.4	1.24	.194	5.59	125	4.64	126	6.36	-4.7
13	Garry Roggenburk G. Roggenburk	21.0	1965	MIN	12	1	0	1.000	0	3.43	6	0	0	2	21	8	10	1	12	0	3	2	95	2	2.57	5.14	0.50	0.43	6.3	12.6	1.57	.263	4.29	96	4.28	116	9.00	-1.3
14	Dwight Siebler D. Siebler	15.0	1965	MIN	7	0	0		1	4.20	15	0	0	0	11	7	7	2	11	0	1	0	68	1	9.00	6.60	1.36	1.20	22.1	16.2	1.47	.225	4.20	118	4.45	121	6.60	-1.2
15	Pete Cimino P. Cimino	1.0	1965	MIN	1	0	0		0	0.00	0	0	0	0	0	0	0	0	0	0	1	0	3	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0	2.52	68	0.00	0.1