The Boston Red Sox had a FIP of 4.37 in 2023.

	NAME	TEAM	FIP	SEASON	G	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	Jorge Alfaro J. Alfaro	Red Sox		2023
2	Christian Arroyo C. Arroyo	Red Sox		2023
3	Kyle Barraclough K. Barraclough	Red Sox	11.21	2023	3	0	12.91	4	0	0	0	7.2	14	11	11	3	6	4	2	0	46	0	4.70	7.04	0.67	3.52	8.7	13.0	2.61	.379	12.91	285	259	16.43	-5.8
4	Brennan Bernardino B. Bernardino	Red Sox	3.41	2023	55	6	3.20	58	0	0	0	50.2	48	18	19	4	18	6	8	1	216	3	10.30	3.20	3.22	0.71	26.9	8.3	1.30	.338	3.38	71	79	8.53	5.1
5	Richard Bleier R. Bleier	Red Sox	5.11	2023	27	0	5.28	16	0	0	0	30.2	37	18	20	5	5	3	3	1	132	3	4.70	1.47	3.20	1.47	12.1	3.8	1.37	.311	5.87	117	118	10.86	-2.6
6	Ryan Brasier R. Brasier	Red Sox	4.35	2023	20	0	7.29	18	0	0	1	21.0	24	17	18	2	9	2	10	0	95	2	7.71	3.86	2.00	0.86	18.9	9.5	1.57	.344	7.71	161	101	10.29	0
7	Yu Chang Y. Chang	Red Sox		2023
8	Matt Dermody M. Dermody	Red Sox	10.75	2023	1	1	6.75	1	0	0	0	4.0	4	3	3	2	1	1	0	0	17	0	2.25	2.25	1.00	4.50	5.9	5.9	1.25	.167	6.75	149	249	9.00	-2.8
9	Rafael Devers R. Devers	Red Sox		2023
10	Adam Duvall A. Duvall	Red Sox		2023
11	Jake Faria J. Faria	Red Sox	6.25	2023	1	0	22.50	3	0	0	0	2.0	4	5	5	0	4	0	1	0	14	0	13.50	18.00	0.75	0.00	21.4	28.6	4.00	.571	22.50	496	145	18.00	-0.4
12	Justin Garza J. Garza	Red Sox	5.65	2023	17	1	7.36	17	0	0	0	18.1	22	15	17	3	12	1	8	1	91	2	8.35	5.89	1.42	1.47	18.7	13.2	1.85	.328	8.35	162	131	10.80	-2.7
13	Caleb Hamilton C. Hamilton	Red Sox		2023
14	Enrique Hernández E. Hernández	Red Sox		2023
15	Tanner Houck T. Houck	Red Sox	4.43	2023	21	21	5.01	99	0	0	0	106.0	104	59	61	14	41	6	0	0	463	1	8.41	3.48	2.41	1.19	21.4	8.9	1.37	.297	5.18	110	102	8.83	-1.2
16	Kenley Jansen K. Jansen	Red Sox	3.65	2023	51	0	3.63	52	0	0	28	44.2	40	18	21	5	17	2	42	1	188	1	10.48	3.43	3.06	1.01	27.7	9.0	1.28	.313	4.23	80	85	8.06	3.3
17	Corey Kluber C. Kluber	Red Sox	7.11	2023	15	9	7.04	42	0	0	1	55.0	69	43	47	17	21	4	1	0	257	1	6.87	3.44	2.00	2.78	16.3	8.2	1.64	.301	7.69	155	164	11.29	-16.8
18	Dinelson Lamet D. Lamet	Red Sox	10.25	2023	1	0	13.50	1	0	0	0	2.0	4	3	3	1	1	0	0	0	11	1	4.50	4.50	1.00	4.50	9.1	9.1	2.50	.375	13.50	298	237	18.00	-1.3
19	Zack Littell Z. Littell	Red Sox	4.92	2023	2	0	9.00	2	0	0	0	3.0	3	3	3	0	3	0	2	1	15	0	6.00	9.00	0.67	0.00	13.3	20.0	2.00	.300	9.00	198	114	9.00	-0.2
20	Chris Martin C. Martin	Red Sox	2.43	2023	55	0	1.05	46	0	0	3	51.1	45	6	6	2	8	0	12	3	199	1	8.06	1.40	5.75	0.35	23.1	4.0	1.03	.301	1.05	23	56	7.89	10.7
21	Reese McGuire R. McGuire	Red Sox		2023
22	James Paxton J. Paxton	Red Sox	4.68	2023	19	19	4.50	101	0	0	0	96.0	93	48	51	18	33	2	0	0	411	5	9.47	3.09	3.06	1.69	24.6	8.0	1.31	.292	4.78	99	108	8.72	-3.7
23	Nick Pivetta N. Pivetta	Red Sox	3.96	2023	38	16	4.04	183	0	0	1	142.2	110	64	69	23	50	6	3	1	587	5	11.54	3.15	3.66	1.45	31.2	8.5	1.12	.268	4.35	89	92	6.94	5.8
24	Rob Refsnyder R. Refsnyder	Red Sox		2023
25	Pablo Reyes P. Reyes	Red Sox	9.25	2023	2	0	4.50	0	0	0	0	2.0	3	1	1	0	4	0	2	0	13	1	0.00	18.00	0.00	0.00	0.0	30.8	3.50	.333	4.50	99	214	13.50	-1.1
	Total		4.37		676	162	4.52	1,423	0	0	42	1430.0	1,416	718	776	208	497	83	162	21	6,168	49	8.96	3.13	2.86	1.31	23.1	8.1	1.34	.305	4.88	100	101	8.91	-6.5