Jeffrey Springs had the lowest ERA for the Rays with an ERA worse than 0.00 in 2023, with an ERA of 0.56.

	NAME	ERA	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	FIP-	H/9	PRAA
1	Jeffrey Springs J. Springs	0.56	2023	TBR	3	2	0	1.000	3	24	0	0	0	16.0	4	1	1	1	4	0	0	0	55	0	13.50	2.25	6.00	0.56	43.6	7.3	0.50	.115	0.56	14	1.81	44	2.25	4.3
2	Shawn Armstrong S. Armstrong	1.38	2023	TBR	39	1	0	1.000	6	54	0	0	0	52.0	36	8	12	2	11	4	5	0	207	0	9.35	1.90	4.91	0.35	26.1	5.3	0.90	.250	2.08	34	2.54	61	6.23	9.5
3	Chris Devenski C. Devenski	2.08	2023	TBR	9	3	2	.600	0	9	0	0	0	8.2	5	2	4	1	2	0	5	0	33	0	9.35	2.08	4.50	1.04	27.3	6.1	0.81	.190	4.15	51	3.37	81	5.19	0.8
4	Joe La Sorsa J. La Sorsa	2.08	2023	TBR	2	0	0		0	3	0	0	0	4.1	3	1	1	0	3	1	1	0	20	0	6.23	6.23	1.00	0.00	15.0	15.0	1.38	.231	2.08	51	4.64	112	6.23	-0.2
5	Jake Diekman J. Diekman	2.18	2023	TBR	50	0	1	.000	0	53	0	0	0	45.1	26	11	15	2	25	1	17	1	185	1	10.52	4.96	2.12	0.40	28.6	13.5	1.13	.231	2.98	53	3.21	77	5.16	4.9
6	Colin Poche C. Poche	2.23	2023	TBR	66	12	3	.800	0	61	0	0	1	60.2	42	15	17	4	24	1	6	1	246	3	9.05	3.56	2.54	0.59	24.8	9.8	1.09	.244	2.52	54	3.33	80	6.23	5.6
7	Robert Stephenson R. Stephenson	2.35	2023	TBR	42	3	1	.750	0	60	0	0	1	38.1	18	10	11	5	8	0	10	1	140	4	14.09	1.88	7.50	1.17	42.9	5.7	0.68	.194	2.58	57	2.44	59	4.23	7.5
8	Pete Fairbanks P. Fairbanks	2.58	2023	TBR	49	2	4	.333	0	68	0	0	25	45.1	26	13	14	3	20	4	37	0	184	6	13.50	3.97	3.40	0.60	37.0	10.9	1.01	.258	2.78	63	2.70	65	5.16	7.5
9	Drew Rasmussen D. Rasmussen	2.62	2023	TBR	8	4	2	.667	8	47	0	0	0	44.2	36	13	13	2	11	1	0	0	177	2	9.47	2.22	4.27	0.40	26.6	6.2	1.05	.293	2.62	64	2.54	61	7.25	8.2
10	Jason Adam J. Adam	2.98	2023	TBR	56	4	2	.667	0	69	0	0	12	54.1	35	18	21	7	20	9	22	0	222	2	11.43	3.31	3.45	1.16	31.1	9.0	1.01	.239	3.48	73	3.99	96	5.80	1
11	Garrett Cleavinger G. Cleavinger	3.00	2023	TBR	15	1	0	1.000	0	14	0	0	0	12.0	6	4	5	2	6	1	3	0	48	1	10.50	4.50	2.33	1.50	29.2	12.5	1.00	.160	3.75	73	4.84	116	4.50	-1
12	Andrew Kittredge A. Kittredge	3.09	2023	TBR	14	2	0	1.000	0	10	0	0	1	11.2	12	4	4	1	2	1	6	0	50	0	7.71	1.54	5.00	0.77	20.0	4.0	1.20	.306	3.09	75	3.42	82	9.26	1
13	Kevin Kelly K. Kelly	3.09	2023	TBR	57	5	2	.714	0	56	0	0	1	67.0	53	23	27	2	15	10	4	1	276	1	7.52	2.01	3.73	0.27	20.3	5.4	1.01	.264	3.63	75	3.09	74	7.12	8.1
14	Shane McClanahan S. McClanahan	3.29	2023	TBR	21	11	2	.846	21	121	0	0	0	115.0	95	42	42	15	41	0	0	0	469	1	9.47	3.21	2.95	1.17	25.8	8.7	1.18	.274	3.29	80	3.91	94	7.43	3
15	Zach Eflin Z. Eflin	3.50	2023	TBR	31	16	8	.667	31	186	0	0	0	177.2	158	69	69	19	24	3	0	1	703	0	9.42	1.22	7.75	0.96	26.5	3.4	1.02	.295	3.50	85	3.00	72	8.00	23.2
16	Tyler Glasnow T. Glasnow	3.53	2023	TBR	21	10	7	.588	21	162	0	0	0	120.0	93	47	52	13	37	1	0	0	485	11	12.15	2.78	4.38	0.97	33.4	7.6	1.08	.294	3.90	86	2.91	70	6.98	16.9
17	Zack Littell Z. Littell	3.93	2023	TBR	26	3	6	.333	14	72	0	0	0	87.0	91	38	40	13	9	4	5	0	364	4	7.45	0.93	8.00	1.34	19.8	2.5	1.15	.293	4.14	96	3.99	96	9.41	1.5
18	Yonny Chirinos Y. Chirinos	4.02	2023	TBR	15	4	4	.500	4	31	0	0	0	62.2	58	28	30	10	20	4	1	0	262	2	4.45	2.87	1.55	1.44	11.8	7.6	1.24	.244	4.31	98	5.49	132	8.33	-9.6
19	Javy Guerra J. Guerra	4.09	2023	TBR	9	0	0		2	9	0	0	0	11.0	7	5	5	1	13	0	5	1	52	0	7.36	10.64	0.69	0.82	17.3	25.0	1.82	.207	4.09	100	6.34	153	5.73	-2.8
20	Jacob Lopez J. Lopez	4.38	2023	TBR	4	1	0	1.000	1	8	0	0	1	12.1	14	6	7	0	2	2	1	0	54	1	5.84	1.46	4.00	0.00	14.8	3.7	1.30	.333	5.11	107	2.93	70	10.22	1.7
21	José Lopez J. Lopez	4.50	2023	TBR	1	0	0		0	2	0	0	0	2.0	3	1	1	0	1	0	0	0	10	0	9.00	4.50	2.00	0.00	20.0	10.0	2.00	.429	4.50	110	2.75	66	13.50	0.3
22	Josh Fleming J. Fleming	4.70	2023	TBR	12	2	0	1.000	3	25	0	0	0	51.2	56	27	29	9	19	0	2	2	221	2	4.35	3.31	1.32	1.57	11.3	8.6	1.45	.280	5.05	115	5.65	136	9.75	-8.9
23	Aaron Civale A. Civale	5.36	2023	TBR	10	2	3	.400	10	58	0	0	0	45.1	51	27	27	7	11	3	0	0	198	1	11.51	2.18	5.27	1.39	29.3	5.6	1.37	.370	5.36	131	3.63	87	10.13	2.7
24	Taj Bradley T. Bradley	5.59	2023	TBR	23	5	8	.385	21	129	0	0	0	104.2	106	65	69	23	39	1	0	0	460	6	11.09	3.35	3.31	1.98	28.0	8.5	1.39	.310	5.93	136	4.79	115	9.11	-7.8
25	Cooper Criswell C. Criswell	5.73	2023	TBR	10	1	1	.500	0	27	0	0	0	33.0	40	21	23	6	11	4	4	1	151	2	7.36	3.00	2.45	1.64	17.9	7.3	1.55	.330	6.27	139	5.34	129	10.91	-4.5