which mlb player has the highest bb per ab

Hayden Penn, Darrell Rasner and Tige Stone are tied for the most career walks per at-bat, with 2.

	NAME	BB/AB	BB	AB	G	R	H	2B	3B	HR	RBI	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Hayden Penn H. Penn	2	2	1	18	0	0	0	0	0	0	0	0	0	0	5	0	0	2	0	0	0	.000	.667	.000	.667	1	0.7	.470	210	0.7
2	Darrell Rasner D. Rasner	2	2	1	2	0	0	0	0	0	0	0	1	0	0	3	0	0	0	0	0	0	.000	.667	.000	.667	1	0.4	.472	194	0.3
3	Tige Stone T. Stone	2	2	1	5	0	1	0	0	0	0	0	0	0	0	3	1	0	0				1.000	1.000	1.000	2.000	1	1.1	.813	381	1.1
4	Gowell Claset G. Claset	1.5	3	2	8	3	1	0	0	0	1	0	1	0	0	5	1	0	0				.500	.800	.500	1.300	2	1.1	.626	256	1
5	Talmadge Nunnari T. Nunnari	1.2	6	5	18	2	1	0	0	0	1	0	2	0	0	12	1	0	0	1	1	0	.200	.583	.200	.783	2	0.7	.410	141	0.7
6	Reid Detmers R. Detmers	1	1	1	1	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0.1	.346	118	0
7	Clarke Schmidt C. Schmidt	1	1	1	2	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0.1	.346	122	0.1
8	Edubray Ramos E. Ramos	1	1	1	162	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0	.345	115	0
9	Audry Perez A. Perez	1	1	1	3	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0	.345	119	0
10	Phillippe Aumont P. Aumont	1	1	1	6	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0.1	.343	119	0.1
11	Brandon Gomes B. Gomes	1	1	1	6	0	0	0	0	0	1	0	1	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0	.345	123	0.1
12	Cole Kimball C. Kimball	1	1	1	11	1	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0	.347	119	0
13	Josh Stinson J. Stinson	1	1	1	20	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0	.347	120	0
14	Dan Runzler D. Runzler	1	1	1	79	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0	.347	124	0
15	Brian Gordon B. Gordon	1	1	1	1	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0	.347	115	0
16	Satoru Komiyama S. Komiyama	1	1	1	22	0	0	0	0	0	0	0	1	0	0	3	0	0	1	0	0	0	.000	.500	.000	.500	0	0.1	.352	117	0.1
17	Jorge Julio J. Julio	1	2	2	95	0	0	0	0	0	0	0	2	0	0	4	0	0	0	0	0	0	.000	.500	.000	.500	1	0.1	.356	109	0.1
18	Brandon Lyon B. Lyon	1	1	1	81	1	1	1	0	0	1	0	0	0	0	2	2	1	0	0	0	0	1.000	1.000	2.000	3.000	1	1.1	.989	544	1.1
19	Mike Saipe M. Saipe	1	1	1	1	0	0	0	0	0	0	0	0	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0	.356	91	0
20	Jeff Wallace J. Wallace	1	1	1	76	0	0	0	0	0	0	0	0	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0	.361	108	0
21	Cory Bailey C. Bailey	1	2	2	57	2	1	0	0	0	0	0	0	0	0	5	1	0	1	0	0	0	.500	.750	.500	1.250	2	1	.585	255	1
22	Dave Pavlas D. Pavlas	1	1	1	13	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0.1	.353	114	0
23	Jeff Musselman J. Musselman	1	1	1	48	0	0	0	0	0	0	0	0	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0	.352	130	0.1
24	Jim Sadowski J. Sadowski	1	1	1	4	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0.1	.357	123	0.1
25	Mike Davison M. Davison	1	1	1	31	1	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.500	.000	.500	0	0.1	.354	114	0