lowest amount of walks thrown by a pitcher at age 40 in a season with at least 10 games played

Lew Burdette has given up the fewest walks by a 40-year-old pitcher with 10+ games pitched in a season, with 0 allowed in 1967.

	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	Lew Burdette L. Burdette	0	40	19	1967	CAL	1	0	1.000	0	4.91	8	0	0	1	18.1	16	10	10	4	1	8	0	71	0	3.93	0.00		1.96	11.3	0.0	0.87	.207	4.91	158	4.67	145	7.85	-3.1
2	Jose Contreras J. Contreras	3	40	17	2012	PHI	1	0	1.000	0	5.27	15	0	0	0	13.2	13	8	10	1	1	3	0	56	0	9.88	1.98	5.00	0.66	26.8	5.4	1.17	.333	6.59	134	2.72	68	8.56	1.9
3	Chris Hammond C. Hammond	5	40	29	2006	CIN	1	1	.500	0	6.91	23	0	0	0	28.2	36	22	23	5	0	7	0	125	0	7.22	1.57	4.60	1.57	18.4	4.0	1.43	.337	7.22	151	4.33	93	11.30	1.1
4	Bill Henry B. Henry	6	40	17	1968	TOT	0	2	.000	1	7.48	9	0	0	0	21.2	33	18	21	2	3	6	2	102	3	3.74	2.49	1.50	0.83	8.8	5.9	1.80	.378	8.72	253	4.00	143	13.71	-3
5	Brian Shouse B. Shouse	7	40	45	2009	TBR	1	1	.500	0	4.50	17	0	0	0	28.0	31	14	15	5	2	9	3	122	1	5.46	2.25	2.43	1.61	13.9	5.7	1.36	.286	4.82	106	5.16	119	9.96	-2.7
6	Joel Peralta J. Peralta	8	40	31	2016	TOT	1	1	.500	0	5.93	33	0	0	0	27.1	30	18	19	9	1	5	0	119	0	10.87	2.63	4.13	2.96	27.7	6.7	1.39	.309	6.26	147	5.99	144	9.88	-5.7
7	Kent Mercker K. Mercker	8	40	15	2008	CIN	1	0	1.000	0	3.29	6	0	0	0	13.2	13	5	5	1	0	5	1	58	1	3.95	5.27	0.75	0.66	10.3	13.8	1.54	.279	3.29	75	4.95	111	8.56	-0.7
8	Tom Burgmeier T. Burgmeier	8	40	17	1984	OAK	3	0	1.000	0	2.35	8	0	0	2	23.0	15	6	6	2	0	8	4	89	1	3.13	3.13	1.00	0.78	9.0	9.0	1.00	.183	2.35	62	4.24	107	5.87	-0.7
9	Roy Face R. Face	8	40	45	1968	TOT	2	4	.333	0	2.55	35	0	0	13	53.0	48	15	17	3	2	33	3	211	0	5.94	1.36	4.38	0.51	16.6	3.8	1.06	.276	2.89	86	2.37	84	8.15	2.6
10	Koji Uehara K. Uehara	9	40	43	2015	BOS	2	4	.333	0	2.23	47	0	0	25	40.1	28	10	14	3	0	38	1	160	4	10.49	2.01	5.22	0.67	29.4	5.6	0.92	.248	3.12	54	2.43	62	6.25	6.9
11	Trevor Hoffman T. Hoffman	9	40	48	2008	SDP	3	6	.333	0	3.77	46	0	0	30	45.1	38	19	19	8	0	42	2	180	0	9.13	1.79	5.11	1.59	25.6	5.0	1.04	.256	3.77	96	3.98	95	7.54	1
12	Mike Remlinger M. Remlinger	9	40	36	2006	ATL	2	4	.333	0	4.03	19	0	0	2	22.1	27	10	11	2	2	7	2	104	1	7.66	3.63	2.11	0.81	18.3	8.7	1.61	.347	4.43	90	4.08	91	10.88	1
13	Doug Jones D. Jones	9	40	75	1997	MIL	6	6	.500	0	2.02	82	0	0	36	80.1	62	18	20	4	3	73	1	307	2	9.19	1.01	9.11	0.45	26.7	2.9	0.88	.278	2.24	43	2.16	48	6.95	21.2
14	Rick Honeycutt R. Honeycutt	9	40	42	1994	TEX	1	2	.333	0	7.20	18	0	0	1	25.0	37	20	21	4	2	9	1	122	0	6.48	3.24	2.00	1.44	14.8	7.4	1.84	.371	7.56	146	5.08	107	13.32	-1
15	LaTroy Hawkins L. Hawkins	10	40	72	2013	NYM	3	2	.600	0	2.93	55	0	0	13	70.2	71	23	27	6	1	28	2	288	1	7.00	1.27	5.50	0.76	19.1	3.5	1.15	.301	3.44	83	3.06	81	9.04	5.5
16	Darren Oliver D. Oliver	11	40	61	2011	TEX	5	5	.500	0	2.29	44	0	0	2	51.0	47	13	17	3	1	17	1	215	0	7.76	1.94	4.00	0.53	20.5	5.1	1.14	.282	3.00	53	2.76	66	8.29	7.8
17	Mariano Rivera M. Rivera	11	40	61	2010	NYY	3	3	.500	0	1.80	45	0	0	33	60.0	39	12	14	2	5	55	3	230	0	6.75	1.65	4.09	0.30	19.6	4.8	0.83	.222	2.10	42	2.80	65	5.85	9.9
18	Steve Reed S. Reed	11	40	30	2005	BAL	1	2	.333	0	6.61	15	0	0	0	32.2	41	24	24	5	4	6	2	149	0	4.13	3.03	1.36	1.38	10.1	7.4	1.59	.316	6.61	154	5.46	123	11.30	-3.5
19	Dennis Eckersley D. Eckersley	11	40	52	1995	OAK	4	6	.400	0	4.83	40	0	0	29	50.1	53	27	29	5	1	48	0	212	0	7.15	1.97	3.64	0.89	18.9	5.2	1.27	.310	5.19	106	3.52	76	9.48	6.3
20	Doug Bair D. Bair	11	40	22	1990	PIT	0	0		0	4.81	19	0	0	0	24.1	30	13	15	3	0	5	1	112	3	7.03	4.07	1.73	1.11	17.0	9.8	1.68	.342	5.55	131	4.20	112	11.10	-1.2
21	Dick Hall D. Hall	11	40	27	1971	BAL	6	6	.500	0	4.98	26	0	0	1	43.1	52	24	27	4	1	14	9	194	1	5.40	2.28	2.36	0.83	13.4	5.7	1.45	.316	5.61	144	3.28	92	10.80	1.3
22	Rafael Betancourt R. Betancourt	12	40	45	2015	COL	2	4	.333	0	6.18	40	0	0	1	39.1	43	27	29	4	0	9	4	175	0	9.15	2.75	3.33	0.92	22.9	6.9	1.40	.328	6.64	136	3.33	80	9.84	3.4
23	Gene Garber G. Garber	13	40	26	1988	KCR	0	4	.000	0	3.58	20	0	0	6	32.2	29	13	15	4	2	19	2	138	0	5.51	3.58	1.54	1.10	14.5	9.4	1.29	.253	4.13	90	4.50	119	7.99	-2.7
24	Bobo Newsom B. Newsom	13	40	11	1948	NYG	0	4	.000	4	4.21	9	0	0	0	25.2	35	12	16	1	0	1		123	1	3.16	4.56	0.69	0.35	7.3	10.6	1.87	.340	5.61	105	3.99	97	12.27	0.3
25	Ken Takahashi K. Takahashi	14	40	28	2009	NYM	0	1	.000	0	2.96	23	0	0	0	27.1	23	9	9	2	2	5	1	116	2	7.57	4.61	1.64	0.66	19.8	12.1	1.35	.280	2.96	73	4.11	99	7.57	0.1