lowest amount of walks thrown by a pitcher at age 38 in a season with at least 10 games played

Jamie Walker has allowed the fewest walks by a 38-year-old pitcher with 10+ games pitched in a season, with 0 allowed in 2009.

	NAME	BB	AGE	G	SEASON	TM	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Jamie Walker J. Walker	0	38	22	2009	BAL	0	0		0	5.11	9	0	0	0	12.1	19	7	8	5	1	2	0	55	1	6.57	0.00		3.65	16.4	0.0	1.54	.350	5.84	112	7.14	156	13.86	-3.4
2	Pat Neshek P. Neshek	2	38	20	2019	PHI	0	1	.000	0	5.00	9	0	0	3	18.0	23	10	11	5	0	6	0	79	0	4.50	1.00	4.50	2.50	11.4	2.5	1.39	.286	5.50	113	6.15	135	11.50	-3.1
3	Dick Coffman D. Coffman	2	38	14	1945	PHN	2	1	.667	0	5.13	2	0	0	0	26.1	39	15	18	0	0	9		116	0	0.68	0.68	1.00	0.00	1.7	1.7	1.56	.348	6.15	136	2.62	71	13.33	3.1
4	Chris Martin C. Martin	3	38	45	2024	BOS	3	1	.750	0	3.45	50	0	0	2	44.1	47	17	22	5	3	9	1	180	2	10.15	0.61	16.67	1.02	27.8	1.7	1.13	.353	4.47	81	2.78	67	9.54	6.6
5	Jeff Reardon J. Reardon	3	38	11	1994	NYY	1	0	1.000	0	8.38	4	0	0	2	9.2	17	9	9	3	0	8	0	48	0	3.72	2.79	1.33	2.79	8.3	6.3	2.07	.368	8.38	178	7.26	153	15.83	-2.7
6	Bob McClure B. McClure	3	38	11	1990	CAL	2	0	1.000	0	6.43	6	0	0	0	7.0	7	5	6	0	0	1	0	30	0	7.71	3.86	2.00	0.00	20.0	10.0	1.43	.333	7.71	168	2.37	60	9.00	1.2
7	Doug Bair D. Bair	3	38	10	1988	TOR	0	0		0	4.05	8	0	0	0	13.1	14	6	6	2	0	4	0	55	1	5.40	2.03	2.67	1.35	14.5	5.5	1.27	.286	4.05	101	4.19	108	9.45	-0.5
8	Darren O'Day D. O'Day	4	38	12	2021	NYY	0	0		0	3.38	11	0	0	0	10.2	9	4	4	2	1	1	0	46	0	9.28	3.38	2.75	1.69	23.9	8.7	1.22	.250	3.38	80	4.94	114	7.59	-0.7
9	Bob Veale B. Veale	4	38	18	1974	BOS	0	1	.000	0	5.54	16	0	0	2	13.0	15	8	8	2	0	5	1	58	1	11.08	2.77	4.00	1.38	27.6	6.9	1.46	.361	5.54	143	3.03	80	10.38	1.1
10	Chad Qualls C. Qualls	5	38	19	2017	COL	1	1	.500	0	5.40	11	0	0	0	16.2	17	10	11	3	0	9	0	72	0	5.94	2.70	2.20	1.62	15.3	6.9	1.32	.264	5.94	108	5.07	111	9.18	-0.8
11	Bud Byerly B. Byerly	5	38	11	1959	SFG	1	0	1.000	0	1.38	4	0	0	0	13.0	11	2	2	2	0	6	1	52	0	2.77	3.46	0.80	1.38	7.7	9.6	1.23	.220	1.38	36	5.08	134	7.62	-1.9
12	Kirby Yates K. Yates	6	38	22	2025	LAD	3	2	.600	0	4.34	31	0	0	1	18.2	18	9	10	3	1	4	0	80	1	14.95	2.89	5.17	1.45	38.8	7.5	1.29	.385	4.82	110	2.95	73	8.68	2.2
13	Oliver Perez O. Perez	6	38	21	2020	CLE	1	1	.500	0	2.00	14	0	0	1	18.0	13	4	5	0	3	2	3	72	0	7.00	3.00	2.33	0.00	19.4	8.3	1.06	.265	2.50	45	3.13	70	6.50	2.6
14	Jon Lieber J. Lieber	6	38	26	2008	CHC	2	3	.400	1	4.05	27	0	0	0	46.2	59	21	24	10	2	7	4	204	0	5.21	1.16	4.50	1.93	13.2	2.9	1.39	.308	4.63	90	5.27	120	11.38	-4.4
15	Mariano Rivera M. Rivera	6	38	64	2008	NYY	6	5	.545	0	1.40	77	0	0	39	70.2	41	11	11	4	2	60	0	259	1	9.81	0.76	12.83	0.51	29.7	2.3	0.67	.218	1.40	32	2.02	47	5.22	18
16	Steve Howe S. Howe	6	38	25	1996	NYY	0	1	.000	0	6.35	5	0	0	1	17.0	19	12	12	1	1	4	3	76	2	2.65	3.18	0.83	0.53	6.6	7.9	1.47	.286	6.35	130	4.57	95	10.06	0.4
17	Jim Brewer J. Brewer	6	38	13	1976	CAL	3	1	.750	0	2.70	16	0	0	2	20.0	20	6	7	0	0	7	0	85	0	7.20	2.70	2.67	0.00	18.8	7.1	1.30	.317	3.15	80	1.93	56	9.00	3.4
18	Ian Kennedy I. Kennedy	7	38	16	2023	TEX	0	1	.000	0	7.16	21	0	0	0	16.1	16	13	15	4	2	7	0	75	1	11.57	3.86	3.00	2.20	28.0	9.3	1.41	.293	8.27	167	5.52	126	8.82	-2
19	Ryan Franklin R. Franklin	7	38	21	2011	STL	1	4	.200	0	8.46	17	0	0	1	27.2	44	26	27	9	1	9	2	133	1	5.53	2.28	2.43	2.93	12.8	5.3	1.84	.354	8.78	229	6.89	185	14.31	-10
20	Giovanni Carrara G. Carrara	7	38	25	2006	LAD	0	1	.000	0	4.55	25	0	0	1	27.2	27	14	14	5	1	9	0	116	1	8.13	2.28	3.57	1.63	21.6	6.0	1.23	.282	4.55	104	4.55	102	8.78	-0.2
21	Tim Worrell T. Worrell	7	38	23	2006	SFG	3	2	.600	0	7.52	12	0	0	6	20.1	28	17	18	9	1	12	0	99	0	5.31	3.10	1.71	3.98	12.1	7.1	1.72	.271	7.97	166	8.89	201	12.39	-10.3
22	Greg Minton G. Minton	7	38	11	1990	CAL	1	1	.500	0	2.35	4	0	0	0	15.1	11	4	4	1	1	3	1	61	0	2.35	4.11	0.57	0.59	6.6	11.5	1.17	.208	2.35	61	4.69	119	6.46	-1.2
23	Guillermo Mota G. Mota	8	38	26	2012	SFG	0	1	.000	0	5.23	24	0	0	0	20.2	24	12	13	3	2	4	0	91	0	10.45	3.48	3.00	1.31	26.4	8.8	1.55	.389	5.66	143	4.10	111	10.45	-1
24	Jason Grimsley J. Grimsley	8	38	19	2006	ARI	1	2	.333	0	4.88	10	0	0	0	27.2	30	15	15	4	0	6	2	118	1	3.25	2.60	1.25	1.30	8.5	6.8	1.37	.271	4.88	104	5.16	111	9.76	-1.5
25	Mark Leiter M. Leiter	8	38	20	2001	MIL	2	1	.667	3	3.75	26	0	0	0	36.0	32	15	16	6	2	3	2	149	3	6.50	2.00	3.25	1.50	17.4	5.4	1.11	.243	4.00	86	4.60	104	8.00	-0.6