lowest whip by a reliever minimum 40 games

Tyler Wells has the lowest WHIP by a relief pitcher when pitching in 40+ games, with a WHIP of 0.79.

	NAME	WHIP	G	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	Tyler Wells T. Wells	0.79	49	2	3	.400	0	3.49	73	0	0	5	67.0	40	26	27	9	13	1	20	0	256	2	9.81	1.75	5.62	1.21	28.5	5.1	.194	3.63	5.37
2	Koji Uehara K. Uehara	0.83	424	20	22	.476	0	2.43	524	0	0	95	414.0	279	112	120	53	66	4	207	8	1,583	9	11.39	1.43	7.94	1.15	33.1	4.2	.241	2.61	6.07
3	Andy Messersmith A. Messersmith	0.84	49	5	0	1.000	0	1.58	97	0	0	14	97.0	45	17	17	6	36	1	30	7	368	1	9.00	3.34	2.69	0.56	26.4	9.8	.171	1.58	4.18
4	Tyson Miller T. Miller	0.88	71	7	1	.875	0	2.61	67	0	0	1	86.1	56	25	28	9	20	6	18	0	333	2	6.98	2.08	3.35	0.94	20.1	6.0	.203	2.92	5.84
5	Christy Mathewson C. Mathewson	0.89	56	20	6	.769	0	1.87	76	0	0	19	149.0	119		52	4	13	2	48		570	1	4.59	0.79	5.85	0.24	13.3	2.3	.242	3.14	7.19
6	Tyler Holton T. Holton	0.89	146	12	5	.706	0	2.43	161	0	0	9	192.2	132	52	56	20	40	6	28	2	742	6	7.52	1.87	4.03	0.93	21.7	5.4	.217	2.62	6.17
7	Hunter Gaddis H. Gaddis	0.89	106	7	3	.700	0	1.59	101	0	0	0	107.1	71	19	22	9	25	5	13	2	413	3	8.47	2.10	4.04	0.75	24.5	6.1	.227	1.84	5.95
8	Aaron Sanchez A. Sanchez	0.90	61	4	4	.500	0	2.35	59	0	0	3	80.1	49	21	23	4	23	3	13	1	307	3	6.61	2.58	2.57	0.45	19.2	7.5	.206	2.58	5.49
9	Roberto Osuna R. Osuna	0.90	314	14	18	.438	0	2.74	348	0	0	155	315.0	230	96	101	28	55	13	247	6	1,227	17	9.94	1.57	6.33	0.80	28.4	4.5	.258	2.89	6.57
10	Tejay Antone T. Antone	0.91	40	2	1	.667	0	2.16	75	0	0	3	58.1	28	14	15	4	25	4	7	0	225	2	11.57	3.86	3.00	0.62	33.3	11.1	.205	2.31	4.32
11	Emmanuel Clase E. Clase	0.93	340	20	22	.476	0	1.86	325	0	0	168	333.2	248	69	104	14	61	7	275	8	1,310	17	8.77	1.65	5.33	0.38	24.8	4.7	.259	2.81	6.69
12	Josh Hader J. Hader	0.94	441	29	29	.500	0	2.65	785	0	0	211	482.2	266	142	152	59	187	23	300	5	1,902	18	14.64	3.49	4.20	1.10	41.3	9.8	.244	2.83	4.96
13	Ed Walsh E. Walsh	0.95	77	18	11	.621	0	0.70	145	0	0	28	179.2	138		68	2	32	3	72		694	9	7.26	1.60	4.53	0.10	20.9	4.6	.266	3.41	6.91
14	Tom Hughes T. Hughes	0.95	72	17	3	.850	0	1.44	131	0	0	17	194.1	128		58	3	57	6	56		736	4	6.07	2.64	2.30	0.14	17.8	7.7	.232	2.69	5.93
15	Masanori Murakami M. Murakami	0.95	53	5	1	.833	0	3.21	96	0	0	9	87.0	61	31	31	10	22	3	21	5	344	3	9.93	2.28	4.36	1.03	27.9	6.4	.239	3.21	6.31
16	Félix Bautista F. Bautista	0.96	138	12	7	.632	0	2.07	217	0	0	56	143.1	78	33	39	13	60	3	90	1	560	10	13.63	3.77	3.62	0.82	38.8	10.7	.243	2.45	4.90
17	Justin Slaten J. Slaten	0.97	67	7	5	.583	0	3.10	74	0	0	5	78.1	60	27	31	5	16	2	14	2	311	4	8.50	1.84	4.63	0.57	23.8	5.1	.257	3.56	6.89
18	Kenley Jansen K. Jansen	0.97	890	49	38	.563	0	2.61	1,237	0	0	457	884.2	591	257	275	84	268	31	669	18	3,517	21	12.58	2.73	4.62	0.85	35.2	7.6	.267	2.80	6.01
19	Mariano Rivera M. Rivera	0.97	1,105	79	57	.581	0	2.06	1,135	0	0	652	1233.2	934	282	305	63	266	44	952	41	4,870	13	8.28	1.94	4.27	0.46	23.3	5.5	.259	2.23	6.81
20	John Smoltz J. Smoltz	0.98	242	4	6	.400	0	2.41	280	0	0	154	261.1	205	70	74	17	50	1	204	5	1,015	9	9.64	1.72	5.60	0.59	27.6	4.9	.282	2.55	7.06
21	Chad Green C. Green	0.98	337	39	24	.619	0	2.95	498	0	0	29	414.2	307	136	151	55	99	10	84	11	1,620	16	10.81	2.15	5.03	1.19	30.7	6.1	.263	3.28	6.66
22	Kevin Kelly K. Kelly	0.98	130	10	4	.714	0	2.90	121	0	0	2	142.2	114	46	54	10	26	15	19	2	573	3	7.63	1.64	4.65	0.63	21.1	4.5	.259	3.41	7.19
23	Jason Adam J. Adam	0.99	302	24	11	.686	0	2.73	350	0	0	24	296.1	181	90	102	32	111	31	76	8	1,186	12	10.63	3.37	3.15	0.97	29.5	9.4	.225	3.10	5.50
24	Cade Smith C. Smith	0.99	99	7	3	.700	0	2.10	140	0	0	4	98.2	72	23	25	1	26	5	6	1	391	0	12.77	2.37	5.38	0.09	35.8	6.6	.324	2.28	6.57
25	Bryan Hudson B. Hudson	1.00	61	6	2	.750	0	2.66	82	0	0	0	81.1	48	24	26	8	33	6	8	2	329	1	9.07	3.65	2.48	0.89	24.9	10.0	.200	2.88	5.31