Pedro Martinez has the lowest FIP- with 180.0+ innings pitched in a season, with a FIP- of 30 in 1999.

Interpreted as:

lowest fip- by a player in a season min 180 ip

	NAME	FIP-	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	H/9	PRAA
1	Pedro Martinez P. Martinez	30	213.1	1999	BOS	31	23	4	.852	29	2.07	313	5	1	0	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	1.38	6.75	79.4
2	Randy Johnson R. Johnson	44	214.1	1995	SEA	30	18	2	.900	30	2.48	294	6	3	0	159	59	65	12	65	6	0	1	866	5	12.35	2.73	4.52	0.50	33.9	7.5	1.05	.301	2.73	53	2.08	6.68	62
3	Pedro Martinez P. Martinez	47	217.0	2000	BOS	29	18	6	.750	29	1.74	284	7	4	0	128	42	44	17	32	14	0	0	817	1	11.78	1.33	8.88	0.71	34.8	3.9	0.74	.236	1.82	35	2.16	5.31	61.5
4	Randy Johnson R. Johnson	48	249.2	2001	ARI	35	21	6	.778	34	2.49	372	3	2	0	181	69	74	19	71	18	1	2	994	8	13.41	2.56	5.24	0.68	37.4	7.1	1.01	.315	2.67	55	2.12	6.52	63.9
5	Dwight Gooden D. Gooden	48	218.0	1984	NYM	31	17	9	.654	31	2.60	276	7	3	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	1.68	6.65	44.6
6	Jacob deGrom J. deGrom	50	217.0	2018	NYM	32	10	9	.526	32	1.70	269	1	0	0	152	41	48	10	46	5	0	3	835	2	11.16	1.91	5.85	0.41	32.2	5.5	0.91	.281	1.99	44	1.98	6.30	49
7	Clayton Kershaw C. Kershaw	50	198.1	2014	LAD	27	21	3	.875	27	1.77	239	6	2	0	139	39	42	9	31	2	0	0	749	7	10.85	1.41	7.71	0.41	31.9	4.1	0.86	.278	1.91	51	1.81	6.31	40.5
8	Roger Clemens R. Clemens	50	264.0	1997	TOR	34	21	7	.750	34	2.05	292	9	3	0	204	60	65	9	68	12	0	1	1,044	4	9.95	2.32	4.29	0.31	28.0	6.5	1.03	.294	2.22	45	2.24	6.95	66.3
9	Pedro Martinez P. Martinez	50	186.2	2003	BOS	29	14	4	.778	29	2.22	206	3	0	0	147	46	52	7	47	9	0	0	749	5	9.93	2.27	4.38	0.34	27.5	6.3	1.04	.292	2.51	48	2.21	7.09	45.7
10	Randy Johnson R. Johnson	51	245.2	2004	ARI	35	16	14	.533	35	2.60	290	4	2	0	177	71	88	18	44	10	0	1	964	3	10.62	1.61	6.59	0.66	30.1	4.6	0.90	.264	3.22	57	2.29	6.48	59.7
11	Christy Mathewson C. Mathewson	52	390.2	1908	NYG	56	37	11	.771	44	1.43	259	34	11	5	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	1.29	6.47	52.4
12	Clayton Kershaw C. Kershaw	52	232.2	2015	LAD	33	16	7	.696	33	2.13	301	4	3	0	163	55	62	15	42	5	0	1	890	9	11.64	1.62	7.17	0.58	33.8	4.7	0.88	.281	2.40	57	1.98	6.31	47.7
13	Greg Maddux G. Maddux	52	209.2	1995	ATL	28	19	2	.905	28	1.63	181	10	3	0	147	38	39	8	23	4	0	3	785	1	7.77	0.99	7.87	0.34	23.1	2.9	0.81	.244	1.67	39	2.25	6.31	46.9
14	Pedro Martinez P. Martinez	53	199.1	2002	BOS	30	20	4	.833	30	2.26	239	2	0	0	144	50	62	13	40	15	0	1	787	3	10.79	1.81	5.98	0.59	30.4	5.1	0.92	.273	2.80	50	2.23	6.50	45.4
15	Randy Johnson R. Johnson	53	248.2	2000	ARI	35	19	7	.731	35	2.64	347	8	3	0	202	73	89	23	76	6	0	1	1,001	5	12.56	2.75	4.57	0.83	34.7	7.6	1.12	.326	3.22	56	2.53	7.31	61.1
16	Zack Greinke Z. Greinke	53	229.1	2009	KCR	33	16	8	.667	33	2.16	242	6	3	0	195	55	64	11	51	4	0	0	915	5	9.50	2.00	4.75	0.43	26.4	5.6	1.07	.303	2.51	48	2.32	7.65	52.5
17	Kevin Brown K. Brown	53	257.0	1998	SDP	36	18	7	.720	35	2.38	257	7	3	0	225	68	77	8	49	10	0	4	1,032	10	9.00	1.72	5.24	0.28	24.9	4.7	1.07	.306	2.70	60	2.22	7.88	57
18	Greg Maddux G. Maddux	55	202.0	1994	ATL	25	16	6	.727	25	1.56	156	10	3	0	150	35	44	4	31	6	0	3	774	3	6.95	1.38	5.03	0.18	20.2	4.0	0.90	.253	1.96	37	2.39	6.68	43.7
19	Roger Clemens R. Clemens	55	228.1	1990	BOS	31	21	6	.778	31	1.93	209	7	4	0	193	49	59	7	54	7	0	3	920	8	8.24	2.13	3.87	0.28	22.7	5.9	1.08	.289	2.33	47	2.17	7.61	44.8
20	Curt Schilling C. Schilling	55	259.1	2002	ARI	36	23	7	.767	35	3.23	316	5	1	0	218	93	95	29	33	3	0	1	1,017	6	10.97	1.15	9.58	1.01	31.1	3.2	0.97	.297	3.30	75	2.39	7.57	54.3
21	Walter Johnson W. Johnson	56	370.0	1910	WSH	45	25	17	.595	42	1.36	313	38	8	1	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	1.39	6.37	45.2
22	Roger Clemens R. Clemens	56	264.0	1988	BOS	35	18	12	.600	35	2.93	291	14	8	0	217	86	93	17	62	6	0	4	1,063	4	9.92	2.11	4.69	0.58	27.4	5.8	1.06	.291	3.17	72	2.17	7.40	50.5
23	Hal Newhouser H. Newhouser	56	292.2	1946	DET	37	26	9	.743	34	1.94	275	29	6	1	215	63	77	10	98	1	2		1,176	8	8.46	3.01	2.81	0.31	23.4	8.3	1.07	.259	2.37	54	1.96	6.61	49.6
24	Chris Sale C. Sale	56	214.1	2017	BOS	32	17	8	.680	32	2.90	308	1	0	0	165	69	73	24	43	8	0	0	851	3	12.93	1.81	7.16	1.01	36.2	5.1	0.97	.301	3.07	63	2.45	6.93	45.5
25	Mark Prior M. Prior	56	211.1	2003	CHC	30	18	6	.750	30	2.43	245	3	1	0	183	57	67	15	50	9	0	4	863	9	10.43	2.13	4.90	0.64	28.4	5.8	1.10	.309	2.85	57	2.47	7.79	44.5