Ed Cushman has the lowest fielding-independent pitching in a season, with a FIP of 0.91 in 1884.

Interpreted as:

lowest fip with a minimum of 1 IP per team game by a player all-time single season

	NAME	FIP	SEASON	TM	G	W	L	W%	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	ERA-	FIP-	H/9	PRAA
1	Ed Cushman E. Cushman	0.91	1884	MIL	4	4	0	1.000	4	1.00	47	4	2	0	36.0	10	4	4	0	3		0		125	1	11.75	0.75	15.67	0.00	37.6	2.4	0.36		1.00	8	8	2.50	17.4
2	Lady Baldwin L. Baldwin	0.98	1884	MIL	2	1	1	.500	2	2.65	21	2	0	0	17.0	7	5	5	0	1		0		61	0	11.12	0.53	21.00	0.00	34.4	1.6	0.47		2.65	20	9	3.71	8.2
3	Henry Porter H. Porter	1.27	1884	MIL	6	3	3	.500	6	3.00	71	6	1	0	51.0	32	17	25	1	9		0		200	6	12.53	1.59	7.89	0.18	35.5	4.5	0.80		4.41	23	11	5.65	24.1
4	Christy Mathewson C. Mathewson	1.29	1908	NYG	56	37	11	.771	44	1.43	259	34	11	5	390.2	281	62	85	5	42	3	9		1,469	2	5.97	0.97	6.17	0.12	17.6	2.9	0.83	.238	1.96	61	52	6.47	52.4
5	Pedro Martinez P. Martinez	1.38	1999	BOS	31	23	4	.852	29	2.07	313	5	1	0	213.1	160	49	56	9	37	9	1	1	835	6	13.20	1.56	8.46	0.38	37.5	4.4	0.92	.323	2.36	42	30	6.75	79.4
6	Walter Johnson W. Johnson	1.39	1910	WSH	45	25	17	.595	42	1.36	313	38	8	1	370.0	262	56	92	1	76	13	3		1,367	21	7.61	1.85	4.12	0.02	22.9	5.6	0.91	.271	2.24	56	56	6.37	45.2
7	Ed Walsh E. Walsh	1.42	1908	CWS	66	40	15	.727	49	1.42	269	42	11	6	464.0	343	73	111	2	56	9	16		1,755	10	5.22	1.09	4.80	0.04	15.3	3.2	0.86	.240	2.15	63	67	6.65	34.2
8	Rube Waddell R. Waddell	1.51	1908	SLA	43	19	14	.576	36	1.89	232	25	5	3	285.2	223	60	93	0	90	8	6		1,143	7	7.31	2.84	2.58	0.00	20.3	7.9	1.10	.274	2.93	82	69	7.03	20.7
9	Cy Young C. Young	1.52	1908	BOS	36	21	11	.656	33	1.26	150	30	3	2	299.0	230	42	68	1	37	1	3		1,116	4	4.52	1.11	4.05	0.03	13.4	3.3	0.89	.247	2.05	52	67	6.92	25.4
10	The Only Nolan T. Only Nolan	1.52	1884	WIL	5	1	4	.200	5	2.93	52	5	0	0	40.0	44	13	28	1	7		0		175	13	11.70	1.58	7.43	0.23	29.7	4.0	1.27		6.30	93	56	9.90	5.5
11	Rube Waddell R. Waddell	1.57	1907	PHA	44	19	13	.594	33	2.15	232	20	7	0	284.2	234	68	115	2	73	15	5		1,121	4	7.33	2.31	3.18	0.06	20.7	6.5	1.08	.290	3.64	83	65	7.40	27.3
12	Chief Bender C. Bender	1.58	1909	PHA	34	18	8	.692	29	1.66	161	24	5	1	250.0	196	46	68	1	45	5	5		968	5	5.80	1.62	3.58	0.04	16.6	4.6	0.96	.258	2.45	69	68	7.06	20.5
13	Rube Waddell R. Waddell	1.59	1904	PHA	46	25	19	.568	46	1.62	349	39	8	0	383.0	307	69	109	5	91	14	0		1,496	8	8.20	2.14	3.84	0.12	23.3	6.1	1.04	.291	2.56	61	62	7.21	41.5
14	Walter Johnson W. Johnson	1.60	1908	WSH	36	14	14	.500	30	1.65	160	23	6	1	256.1	194	47	75	0	53	11	6		985	13	5.62	1.86	3.02	0.00	16.2	5.4	0.96	.255	2.63	72	75	6.81	15
15	Christy Mathewson C. Mathewson	1.62	1909	NYG	37	25	6	.806	33	1.14	149	26	8	2	275.1	192	35	57	2	36	0	4		998	4	4.87	1.18	4.14	0.07	14.9	3.6	0.83	.234	1.86	44	61	6.28	31.7
16	Corbin Burnes C. Burnes	1.62	2021	MIL	28	11	5	.688	28	2.43	234	0	0	0	167.0	123	45	47	7	34	6	0	0	657	5	12.61	1.83	6.88	0.38	35.6	5.2	0.94	.309	2.53	58	38	6.63	48.9
17	Ed Walsh E. Walsh	1.63	1910	CWS	45	18	20	.474	36	1.27	258	33	7	5	369.2	242	52	87	5	61	4	7		1,359	6	6.28	1.49	4.23	0.12	19.0	4.5	0.82	.230	2.12	52	66	5.89	34.8
18	Addie Joss A. Joss	1.68	1908	CLE	42	24	11	.686	35	1.16	130	29	9	2	325.0	232	42	77	2	30	2	6		1,209	6	3.60	0.83	4.33	0.06	10.8	2.5	0.81	.220	2.13	49	76	6.42	19.3
19	Dwight Gooden D. Gooden	1.68	1984	NYM	31	17	9	.654	31	2.60	276	7	3	0	218.0	161	63	72	7	73	2	0	2	879	3	11.39	3.01	3.78	0.29	31.4	8.3	1.07	.296	2.97	74	48	6.65	44.6
20	Cy Young C. Young	1.69	1905	BSA	38	18	19	.486	33	1.82	210	31	4	0	320.2	248	65	99	3	30	8	5		1,189	6	5.89	0.84	7.00	0.08	17.7	2.5	0.87	.261	2.78	68	61	6.96	38.4
21	Chief Bender C. Bender	1.72	1907	PHA	33	16	8	.667	24	2.05	112	20	4	3	219.1	185	50	67	1	34	3	8		838	5	4.60	1.40	3.29	0.04	13.4	4.1	1.00	.267	2.75	79	71	7.59	17.3
22	Eddie Plank E. Plank	1.73	1908	PHA	34	14	16	.467	28	2.17	135	21	4	1	244.2	202	59	71	1	46	9	5		956	7	4.97	1.69	2.93	0.04	14.1	4.8	1.01	.263	2.61	89	76	7.43	15.4
23	Orval Overall O. Overall	1.75	1909	CHC	38	20	11	.645	32	1.42	205	23	9	3	285.0	204	45	66	1	80	8	6		1,116	11	6.47	2.53	2.56	0.03	18.4	7.2	1.00	.247	2.08	55	67	6.44	27.8
24	Bob Gibson B. Gibson	1.77	1968	STL	34	22	9	.710	34	1.12	268	28	13	0	304.2	198	38	49	11	62	7	0	6	1,161	4	7.92	1.83	4.32	0.32	23.1	5.3	0.85	.230	1.45	38	63	5.85	34.8
25	Bill Donovan B. Donovan	1.78	1908	DET	29	18	7	.720	28	2.08	141	25	6	0	242.2	210	56	78	2	53	6	1		967	3	5.23	1.97	2.66	0.07	14.6	5.5	1.08	.272	2.89	84	76	7.79	15.4