Nick Punto's historically low slugging percentage

Here are the twenty most recent times that a player played at least 20 games and a had an on-base percentage that was at least 15% higher than his slugging percentage:

Rk	Player	Year	OBP	SLG	G	Age	PA	R	2B	HR	RBI	BB	SO	Pos
1	Nick Punto	2009	.337	.284	125	31	440	56	15	1	38	61	70	*46/5D
2	Gregor Blanco	2008	.366	.309	144	24	519	52	14	1	38	74	99	*78/9
3	Desi Relaford	2000	.351	.300	128	26	502	55	14	5	46	75	71	*6
4	Rickey Henderson	2000	.368	.305	123	41	519	75	14	4	32	88	75	*7/D
5	Ryan McGuire	1998	.292	.243	130	26	244	17	9	1	10	32	55	*37/98
6	Mark McLemore	1998	.369	.317	126	33	567	79	15	5	53	89	64	*4/D
7	Rickey Henderson	1997	.400	.342	120	38	509	84	14	8	34	97	85	*7D8/9
8	Otis Nixon	1996	.377	.327	125	37	575	87	15	1	29	71	68	*8
9	Rickey Henderson	1996	.410	.344	148	37	602	110	17	9	29	125	90	*798
10	Walt Weiss	1995	.403	.321	137	31	537	65	17	1	25	98	57	*6
11	Walt Weiss	1993	.367	.308	158	29	591	50	14	1	39	79	73	*6
12	Lance Blankenship	1992	.393	.341	123	28	446	59	24	3	34	82	57	*4798/3D
13	Brett Butler	1991	.401	.343	161	34	730	112	13	2	38	108	79	*8
14	Jose Oquendo	1991	.357	.301	127	27	441	37	11	1	26	67	48	*46/31
15	Gary Pettis	1991	.341	.277	137	33	343	37	7	0	19	54	91	*8/D
16	Dick Schofield	1991	.310	.260	134	28	487	44	9	0	31	50	69	*6
17	Geno Petralli	1990	.357	.302	133	30	382	28	13	0	21	50	49	*2/54
18	Gerald Young	1989	.326	.276	146	24	620	71	17	0	38	74	60	*8
19	Otis Nixon	1989	.306	.260	126	30	293	41	7	0	21	33	36	*87/9
20	Felix Fermin	1989	.302	.260	156	25	562	50	9	0	21	41	27	*6/4

Provided by Baseball-Reference.com: View Play Index Tool Used
Generated 12/14/2011.

Punto just signed with the Red Sox.

Some guys on this list just have insanely high OBP due to walking a lot (hello Rickey Henderson and Brett Butler.) Other guys walked a little bit and just never hit for extra bases. That's Punto's deal.