Roel Ramirez had the highest ERA - FIP in 2021, with 59.84 in his rookie season.

Interpreted as:

most era-fip by a player in 2021

	NAME	ERA-FIP	ERA	FIP	SEASON	TM	G	W	L	W%	GS	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	Roel Ramirez R. Ramirez	59.84	81.00	21.16	2021	STL	1	0	0		0	0	0	0	0	0.1	1	3	3	0	2	0	0	0	4	0	0.00	54.00	0.00	0.00	0.0	50.0	9.00	.500	81.00	1990	509	27.00	-0.6
2	John Axford J. Axford	32.84	54.00	21.16	2021	MIL	1	0	0		0	0	0	0	0	0.1	2	2	2	0	1	1	0	0	5	0	0.00	27.00	0.00	0.00	0.0	20.0	9.00	.667	54.00	1287	494	54.00	-0.6
3	Felix Pena F. Pena	29.84	37.80	7.96	2021	LAA	2	0	0		0	2	0	0	0	1.2	7	7	7	0	4	0	0	0	16	1	10.80	21.60	0.50	0.00	12.5	25.0	6.60	.700	37.80	858	183	37.80	-0.7
4	Kevin Quackenbush K. Quackenbush	29.84	27.00	-2.84	2021	LAD	1	0	0		0	1	0	0	0	0.1	3	1	1	0	0	0	0	0	4	0	27.00	0.00		0.00	25.0	0.0	9.00	1.000	27.00	663	-66	81.00	0.3
5	Colten Brewer C. Brewer	25.84	36.00	10.16	2021	BOS	1	0	0		0	1	0	0	0	1.0	4	4	4	0	3	0	0	0	9	0	9.00	27.00	0.33	0.00	11.1	33.3	7.00	.800	36.00	786	235	36.00	-0.6
6	Chaz Roe C. Roe	25.34	27.00	1.66	2021	TBR	1	0	0		0	2	0	0	0	0.2	1	2	2	0	1	0	0	0	4	0	27.00	13.50	2.00	0.00	50.0	25.0	3.00	1.000	27.00	658	40	13.50	0.2
7	Tyler Beede T. Beede	24.84	27.00	2.16	2021	SFG	1	0	0		0	2	0	0	0	1.0	2	3	3	0	0	1	0	0	6	1	18.00	0.00		0.00	33.3	0.0	2.00	.667	27.00	670	53	18.00	0.2
8	Wilmer Difo W. Difo	22.84	36.00	13.16	2021	PIT	2	0	0		0	1	0	0	0	2.0	9	8	8	1	3	0	2	0	18	0	4.50	13.50	0.33	4.50	5.6	16.7	6.00	.615	36.00	850	310	40.50	-2
9	Jorge Guzman J. Guzman	22.04	32.40	10.36	2021	MIA	2	0	0		0	3	0	0	0	1.2	4	6	6	0	6	0	0	1	15	0	16.20	32.40	0.50	0.00	20.0	40.0	6.00	.667	32.40	772	249	21.60	-1.2
10	Elvis Peguero E. Peguero	18.69	27.00	8.31	2021	LAA	3	0	1	.000	0	0	0	0	0	2.1	7	7	7	0	3	1	0	0	17	0	0.00	11.57	0.00	0.00	0.0	17.6	4.29	.538	27.00	613	190	27.00	-1
11	Justin Topa J. Topa	18.44	29.70	11.26	2021	MIL	4	0	0		0	1	0	0	0	3.1	12	11	11	2	1	0	0	1	23	0	2.70	2.70	1.00	5.40	4.3	4.3	3.90	.526	29.70	708	263	32.40	-2.6
12	Cooper Criswell C. Criswell	17.09	20.25	3.16	2021	LAA	1	0	1	.000	1	0	0	0	0	1.1	6	3	3	0	0	0	0	0	10	0	0.00	0.00		0.00	0.0	0.0	4.50	.600	20.25	460	72	40.50	0.2
13	Darin Ruf D. Ruf	14.84	18.00	3.16	2021	SFG	1	0	0		0	0	0	0	0	1.0	3	2	2	0	0	0	1	0	6	0	0.00	0.00		0.00	0.0	0.0	3.00	.500	18.00	447	78	27.00	0.1
14	Francisco Mejía F. Mejía	14.34	27.00	12.66	2021	TBR	2	0	0		0	0	0	0	0	2.0	6	6	6	1	0	2	2	0	14	0	0.00	0.00		4.50	0.0	0.0	3.00	.455	27.00	658	308	27.00	-2
15	Blaine Hardy B. Hardy	13.84	18.00	4.16	2021	MIL	1	0	1	.000	0	1	0	0	0	1.0	3	2	3	0	1	0	1	0	7	0	9.00	9.00	1.00	0.00	14.3	14.3	4.00	.600	27.00	429	97	27.00	0
16	Keury Mella K. Mella	12.44	32.40	19.96	2021	ARI	2	0	0		0	2	0	0	0	1.2	8	6	6	2	2	0	1	0	15	0	10.80	10.80	1.00	10.80	13.3	13.3	6.00	.667	32.40	772	485	43.20	-3
17	Luis Guillorme L. Guillorme	11.84	18.00	6.16	2021	NYM	1	0	0		0	0	0	0	0	1.0	3	2	2	0	1	0	1	0	7	0	0.00	9.00	0.00	0.00	0.0	14.3	4.00	.500	18.00	452	147	27.00	-0.2
18	John Nogowski J. Nogowski	11.84	15.00	3.16	2021	TOT	3	0	0		0	0	0	0	0	3.0	8	5	5	0	0	0	3	0	16	0	0.00	0.00		0.00	0.0	0.0	2.67	.500	15.00	354	75	24.00	0.4
19	Jake Rogers J. Rogers	11.84	18.00	6.16	2021	DET	1	0	0		0	0	0	0	0	1.0	2	2	2	0	1	0	0	0	6	0	0.00	9.00	0.00	0.00	0.0	16.7	3.00	.400	18.00	417	146	18.00	-0.2
20	Kutter Crawford K. Crawford	11.84	22.50	10.66	2021	BOS	1	0	1	.000	1	2	0	0	0	2.0	5	5	5	1	2	0	0	0	13	0	9.00	9.00	1.00	4.50	15.4	15.4	3.50	.500	22.50	491	247	22.50	-1.4
21	Andrew Bellatti A. Bellatti	10.94	13.50	2.56	2021	MIA	3	0	0		0	4	0	0	0	3.1	6	5	5	0	2	0	0	0	19	0	10.80	5.40	2.00	0.00	21.1	10.5	2.40	.462	13.50	322	62	16.20	0.6
22	Seth Martinez S. Martinez	10.84	15.00	4.16	2021	HOU	3	0	0		0	3	0	0	0	3.0	5	5	5	0	3	0	3	0	16	0	9.00	9.00	1.00	0.00	18.8	18.8	2.67	.500	15.00	351	98	15.00	0
23	David Peralta D. Peralta	9.84	27.00	17.16	2021	ARI	1	0	0		0	1	0	0	0	1.0	4	3	3	1	0	1	1	0	9	0	9.00	0.00		9.00	11.1	0.0	4.00	.500	27.00	644	417	36.00	-1.5
24	Jake Petricka J. Petricka	8.34	15.00	6.66	2021	LAA	7	0	1	.000	0	8	0	0	0	6.0	6	10	10	1	7	1	1	1	32	1	12.00	10.50	1.14	1.50	25.0	21.9	2.17	.333	15.00	340	153	9.00	-1.5
25	Jake Newberry J. Newberry	7.68	16.62	8.93	2021	KCR	4	0	0		0	5	0	0	0	4.1	10	8	8	2	3	0	1	0	24	1	10.38	6.23	1.67	4.15	20.8	12.5	3.00	.571	16.62	370	211	20.77	-2.3