Pedro Martinez has the lowest FIP- with 150.0+ innings pitched in a season, with a FIP- of 30 in 1999.

Interpreted as:

lowest fip- by a player in a season min 150 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	Corbin Burnes C. Burnes	38	167.0	2021	MIL	28	11	5	.688	28	2.43	234	0	0	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	1.62	6.63	48.9
3	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
4	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
5	Chris Sale C. Sale	47	158.0	2018	BOS	27	12	4	.750	27	2.11	237	0	0	0	102	37	39	11	34	14	0	0	617	4	13.50	1.94	6.97	0.63	38.4	5.5	0.86	.283	2.22	48	1.97	5.81	39.2
6	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
7	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
8	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
9	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
10	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
11	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
12	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
13	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
14	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
15	Chris Sale C. Sale	52	177.2	2024	ATL	29	18	3	.857	29	2.38	225	0	0	0	141	47	48	9	39	8	0	0	702	4	11.40	1.98	5.77	0.46	32.1	5.6	1.01	.314	2.43	57	2.08	7.14	38.1
16	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
17	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
18	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
19	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
20	Matt Harvey M. Harvey	53	178.1	2013	NYM	26	9	5	.643	26	2.27	191	1	1	0	135	45	46	7	31	4	0	1	690	2	9.64	1.56	6.16	0.35	27.7	4.5	0.93	.280	2.32	64	2.00	6.81	34.9
21	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
22	Max Scherzer M. Scherzer	55	172.1	2019	WSH	27	11	7	.611	27	2.92	243	0	0	0	144	56	59	18	33	7	0	2	693	0	12.69	1.72	7.36	0.94	35.1	4.8	1.03	.321	3.08	66	2.44	7.52	38.6
23	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
24	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
25	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