lowest single season whip amongst relievers with minimum 15 ip in 2000s

Between the 2000 and 2009 seasons, Jose Acevedo had the lowest WHIP by a relief pitcher with 15.0+ innings pitched in a season, with a WHIP of 0.47 in 2004.

	NAME	WHIP	IP	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	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	Jose Acevedo J. Acevedo	0.47	17.0	2004	CIN	12	0	0		0	0.00	10	0	0	0	7	0	1	0	1	0	3	0	59	0	5.29	0.53	10.00	0.00	16.9	1.7	.146	0.53	3.71
2	Mike Adams M. Adams	0.59	37.0	2009	SDP	37	0	0		0	0.73	45	0	0	0	14	3	9	1	8	0	5	1	136	1	10.95	1.95	5.63	0.24	33.1	5.9	.159	2.19	3.41
3	Derrick Turnbow D. Turnbow	0.65	15.1	2003	ANA	11	2	0	1.000	0	0.59	15	0	0	0	7	1	1	0	3	0	7	0	53	0	8.80	1.76	5.00	0.00	28.3	5.7	.200	0.59	4.11
4	Mariano Rivera M. Rivera	0.67	70.2	2008	NYY	64	6	5	.545	0	1.40	77	0	0	39	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
5	Neftali Feliz N. Feliz	0.68	31.0	2009	TEX	20	1	0	1.000	0	1.74	39	0	0	2	13	6	6	2	8	3	3	0	117	0	11.32	2.32	4.88	0.58	33.3	6.8	.169	1.74	3.77
6	Eric Gagne E. Gagne	0.69	82.1	2003	LAD	77	2	3	.400	0	1.20	137	0	0	55	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
7	Jamie Moyer J. Moyer	0.70	18.2	2009	PHI	5	2	0	1.000	0	1.93	16	0	0	0	10	4	4	1	3	1	1	0	70	0	7.71	1.45	5.33	0.48	22.9	4.3	.184	1.93	4.82
8	J.J. Putz	0.70	71.2	2007	SEA	68	6	1	.857	0	1.38	82	0	0	40	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
9	Sergio Romo S. Romo	0.71	34.0	2008	SFG	29	3	1	.750	0	2.12	33	0	0	0	16	8	13	3	8	3	8	1	130	0	8.74	2.12	4.13	0.79	25.4	6.2	.157	3.44	4.24
10	Carlos Villanueva C. Villanueva	0.71	17.0	2006	MIL	4	1	0	1.000	0	3.18	13	0	0	0	10	6	6	2	2	1	2	0	65	0	6.88	1.06	6.50	1.06	20.0	3.1	.170	3.18	5.29
11	Cla Meredith C. Meredith	0.71	50.2	2006	SDP	45	5	1	.833	0	1.07	37	0	0	0	30	6	6	3	6	2	11	3	185	0	6.57	1.07	6.17	0.53	20.0	3.2	.197	1.07	5.33
12	Takashi Saito T. Saito	0.72	64.1	2007	LAD	63	2	1	.667	0	1.40	78	0	0	39	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
13	John Smoltz J. Smoltz	0.74	34.0	2001	ATL	31	1	1	.500	0	1.59	37	0	0	10	20	6	8	3	5	1	20	1	128	0	9.79	1.32	7.40	0.79	28.9	3.9	.207	2.12	5.29
14	Joba Chamberlain J. Chamberlain	0.75	24.0	2007	NYY	19	2	0	1.000	0	0.38	34	0	0	1	12	1	2	1	6	1	3	0	91	1	12.75	2.25	5.67	0.38	37.4	6.6	.224	0.75	4.50
15	Rafael Betancourt R. Betancourt	0.76	79.1	2007	CLE	68	5	1	.833	0	1.47	80	0	0	3	51	13	13	4	9	0	15	3	289	0	9.08	1.02	8.89	0.45	27.7	3.1	.240	1.47	5.79
16	Jeremy Fikac J. Fikac	0.76	26.1	2001	SDP	23	2	0	1.000	0	1.37	19	0	0	0	15	4	6	2	5	1	5	1	99	0	6.49	1.71	3.80	0.68	19.2	5.1	.181	2.05	5.13
17	Billy Wagner B. Wagner	0.77	48.1	2004	PHI	45	4	0	1.000	0	2.42	59	0	0	21	31	13	16	5	6	2	38	1	182	1	10.99	1.12	9.83	0.93	32.4	3.3	.236	2.98	5.77
18	Jason Vargas J. Vargas	0.77	15.2	2009	SEA	9	1	0	1.000	0	2.87	13	0	0	0	11	5	5	2	1	0	4	0	57	0	7.47	0.57	13.00	1.15	22.8	1.8	.220	2.87	6.32
19	Jonathan Papelbon J. Papelbon	0.77	58.1	2007	BOS	59	1	3	.250	0	1.85	84	0	0	37	30	12	12	5	15	4	53	0	224	0	12.96	2.31	5.60	0.77	37.5	6.7	.216	1.85	4.63
20	Jonathan Papelbon J. Papelbon	0.78	68.1	2006	BOS	59	4	2	.667	0	0.92	75	0	0	35	40	7	8	3	13	1	49	2	257	2	9.88	1.71	5.77	0.40	29.2	5.1	.224	1.05	5.27
21	Nelson Figueroa N. Figueroa	0.78	19.1	2003	PIT	9	0	1	.000	0	3.26	14	0	0	0	10	7	7	4	5	1	1	1	75	2	6.52	2.33	2.80	1.86	18.7	6.7	.118	3.26	4.66
22	Pat Neshek P. Neshek	0.78	37.0	2006	MIN	32	4	2	.667	0	2.19	53	0	0	0	23	9	9	6	6	0	3	0	138	0	12.89	1.46	8.83	1.46	38.4	4.3	.233	2.19	5.59
23	Kelvim Escobar K. Escobar	0.79	19.0	2005	LAA	9	1	0	1.000	0	1.89	17	0	0	1	11	4	4	1	4	0	2	0	71	0	8.05	1.89	4.25	0.47	23.9	5.6	.204	1.89	5.21
24	Joe Nathan J. Nathan	0.79	68.1	2006	MIN	64	7	0	1.000	0	1.58	95	0	0	36	38	12	12	3	16	1	61	4	262	3	12.51	2.11	5.94	0.40	36.3	6.1	.238	1.58	5.00
25	Rafael Soriano R. Soriano	0.79	53.0	2003	SEA	40	3	0	1.000	0	1.53	68	0	0	1	30	9	9	2	12	3	12	1	201	0	11.55	2.04	5.67	0.34	33.8	6.0	.241	1.53	5.09