lowest whip by a reliever minimum 50 games in a single season

Koji Uehara has the lowest WHIP by a relief pitcher with 50+ games pitched in a season, with a WHIP of 0.57 in 2013.

	NAME	WHIP	G	SEASON	TM	W	L	W%	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%	BABIP	RA	H/9
1	Koji Uehara K. Uehara	0.57	73	2013	BOS	4	1	.800	0	1.09	101	0	0	21	74.1	33	9	10	5	9	1	40	2	265	1	12.23	1.09	11.22	0.61	38.1	3.4	.188	1.21	4.00
2	Dennis Eckersley D. Eckersley	0.61	51	1989	OAK	4	0	1.000	0	1.56	55	0	0	33	57.2	32	10	10	5	3	1	46	0	206	0	8.58	0.47	18.33	0.78	26.7	1.5	.190	1.56	4.99
3	Dennis Eckersley D. Eckersley	0.61	63	1990	OAK	4	2	.667	0	0.61	73	0	0	48	73.1	41	5	9	2	4	0	61	1	262	0	8.96	0.49	18.25	0.25	27.9	1.5	.213	1.10	5.03
4	Craig Kimbrel C. Kimbrel	0.65	63	2012	ATL	3	1	.750	0	1.01	116	0	0	42	62.2	27	7	7	3	14	2	56	0	231	5	16.66	2.01	8.29	0.43	50.2	6.1	.250	1.01	3.88
5	Emmanuel Clase E. Clase	0.66	74	2024	CLE	4	2	.667	0	0.61	66	0	0	47	74.1	39	5	10	2	10	2	66	1	270	2	7.99	1.21	6.60	0.24	24.4	3.7	.195	1.21	4.72
6	Mariano Rivera M. Rivera	0.67	64	2008	NYY	6	5	.545	0	1.40	77	0	0	39	70.2	41	11	11	4	6	2	60	0	259	1	9.81	0.76	12.83	0.51	29.7	2.3	.218	1.40	5.22
7	Kenley Jansen K. Jansen	0.67	72	2016	LAD	3	2	.600	0	1.83	104	0	0	47	68.2	35	14	14	4	11	2	63	2	251	1	13.63	1.44	9.45	0.52	41.4	4.4	.238	1.83	4.59
8	Joaquin Benoit J. Benoit	0.68	63	2010	TBR	1	2	.333	0	1.34	75	0	0	1	60.1	30	9	10	6	11	0	16	1	217	1	11.19	1.64	6.82	0.90	34.6	5.1	.192	1.49	4.48
9	Craig Kimbrel C. Kimbrel	0.68	67	2017	BOS	5	0	1.000	0	1.43	126	0	0	35	69.0	33	11	11	6	14	4	51	0	254	5	16.43	1.83	9.00	0.78	49.6	5.5	.260	1.43	4.30
10	Andrew Miller A. Miller	0.69	70	2016	TOT	10	1	.909	0	1.45	123	0	0	12	74.1	42	12	13	8	9	2	23	0	275	1	14.89	1.09	13.67	0.97	44.7	3.3	.256	1.57	5.09
11	Eric Gagne E. Gagne	0.69	77	2003	LAD	2	3	.400	0	1.20	137	0	0	55	82.1	37	11	12	2	20	3	67	2	306	2	14.98	2.19	6.85	0.22	44.8	6.5	.243	1.31	4.04
12	J.J. Putz	0.70	68	2007	SEA	6	1	.857	0	1.38	82	0	0	40	71.2	37	11	11	6	13	2	65	0	260	3	10.30	1.63	6.31	0.75	31.5	5.0	.197	1.38	4.65
13	Aroldis Chapman A. Chapman	0.70	67	2025	BOS	5	3	.625	0	1.17	85	0	0	32	61.1	28	8	9	3	15	0	43	0	228	6	12.47	2.20	5.67	0.44	37.3	6.6	.200	1.32	4.11
14	Sergio Romo S. Romo	0.71	65	2011	SFG	3	1	.750	0	1.50	70	0	0	1	48.0	29	8	8	2	5	0	16	1	175	0	13.13	0.94	14.00	0.38	40.0	2.9	.276	1.50	5.44
15	Takashi Saito T. Saito	0.72	63	2007	LAD	2	1	.667	0	1.40	78	0	0	39	64.1	33	10	10	5	13	3	55	0	234	0	10.91	1.82	6.00	0.70	33.3	5.6	.207	1.40	4.62
16	Koji Uehara K. Uehara	0.72	65	2011	TOT	2	3	.400	0	2.35	85	0	0	0	65.0	38	17	17	11	9	0	22	1	243	0	11.77	1.25	9.44	1.52	35.0	3.7	.196	2.35	5.26
17	Emmanuel Clase E. Clase	0.73	77	2022	CLE	3	4	.429	0	1.36	77	0	0	42	72.2	43	11	18	3	10	1	67	2	271	4	9.54	1.24	7.70	0.37	28.4	3.7	.222	2.23	5.33
18	Liam Hendriks L. Hendriks	0.73	69	2021	CWS	8	3	.727	0	2.54	113	0	0	38	71.0	45	20	23	11	7	1	58	1	267	6	14.32	0.89	16.14	1.39	42.3	2.6	.252	2.92	5.70
19	Sean Doolittle S. Doolittle	0.73	61	2014	OAK	2	4	.333	0	2.73	89	0	0	22	62.2	38	19	19	5	8	0	40	1	236	0	12.78	1.15	11.13	0.72	37.7	3.4	.246	2.73	5.46
20	Raisel Iglesias R. Iglesias	0.74	66	2024	ATL	6	2	.750	0	1.95	68	0	0	34	69.1	38	15	19	4	13	3	52	3	259	1	8.83	1.69	5.23	0.52	26.3	5.0	.199	2.47	4.93
21	Ryan Helsley R. Helsley	0.74	54	2022	STL	9	1	.900	0	1.25	94	0	0	19	64.2	28	9	11	6	20	0	33	1	239	1	13.08	2.78	4.70	0.84	39.3	8.4	.185	1.53	3.90
22	Oliver Perez O. Perez	0.74	51	2018	CLE	1	1	.500	0	1.39	43	0	0	0	32.1	17	5	6	1	7	2	1	3	120	1	11.97	1.95	6.14	0.28	35.8	5.8	.239	1.67	4.73
23	A.J. Puk	0.75	58	2024	TOT	4	5	.444	0	1.72	76	0	0	3	57.2	32	11	14	4	11	1	9	2	217	1	11.86	1.72	6.91	0.62	35.0	5.1	.224	2.18	4.99
24	Kenley Jansen K. Jansen	0.75	65	2017	LAD	5	0	1.000	0	1.32	109	0	0	41	68.1	44	10	11	5	7	2	57	0	258	2	14.36	0.92	15.57	0.66	42.2	2.7	.289	1.45	5.80
25	Matt Strahm M. Strahm	0.75	66	2024	PHI	6	2	.750	0	1.87	79	0	0	3	62.2	36	13	14	4	11	6	10	1	237	2	11.35	1.58	7.18	0.57	33.3	4.6	.234	2.01	5.17

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Sat 4/11	BOS	@	STL	7:15 PM
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Nationals	4	8	.333	3.5
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Brewers	8	4	.667
Reds	8	5	.615	0.5
Pirates	8	5	.615	0.5
Cardinals	7	5	.583	1.0
Cubs	6	7	.462	2.5
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Dodgers	9	3	.750
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Yankees	8	4	.667
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Guardians	8	5	.615
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Rangers	7	5	.583
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Angels	6	7	.462	1.5
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Mariners	4	9	.308	3.5