lowest amount of home runs allowed in an mlb season at age 40 with at least 10 games played

Orlando Pena has allowed the fewest home runs by a 40-year-old pitcher with 10+ games pitched in a season, with 0 HR in 1974.

Interpreted as:

lowest amount of home runs allowed by a player in an MLB season at age 40 with at least 10 games played

	NAME	HR	AGE	G	SEASON	TM	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	BB	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	Orlando Pena O. Pena	0	40	46	1974	TOT	5	2	.714	0	2.21	28	0	0	4	53.0	51	13	15	21	1	28	3	224	1	4.75	3.57	1.33	0.00	12.5	9.4	1.36	.293	2.55	60	2.76	79	8.66	4.4
2	Jose Contreras J. Contreras	1	40	17	2012	PHI	1	0	1.000	0	5.27	15	0	0	0	13.2	13	8	10	3	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	Kent Mercker K. Mercker	1	40	15	2008	CIN	1	0	1.000	0	3.29	6	0	0	0	13.2	13	5	5	8	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
4	Tony Fossas T. Fossas	1	40	41	1998	TOT	1	3	.250	0	5.96	23	0	0	0	22.2	30	15	15	16	0	10	0	110	1	9.13	6.35	1.44	0.40	20.9	14.5	2.03	.414	5.96	131	3.79	83	11.91	2
5	Woodie Fryman W. Fryman	1	40	61	1980	MON	7	4	.636	0	2.25	59	0	0	17	80.0	61	20	23	30	2	40	9	331	1	6.64	3.38	1.97	0.11	17.8	9.1	1.14	.251	2.59	62	2.63	74	6.86	8.4
6	Bobo Newsom B. Newsom	1	40	11	1948	NYG	0	4	.000	4	4.21	9	0	0	0	25.2	35	12	16	13	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
7	Burleigh Grimes B. Grimes	1	40	22	1934	TOT	4	5	.444	4	6.11	15	0	0	1	53.0	63	36	38	26	2	14		245	2	2.55	4.42	0.58	0.17	6.1	10.6	1.68	.308	6.45	149	4.38	106	10.70	-1.7
8	Babe Adams B. Adams	1	40	27	1922	PIT	8	11	.421	19	3.57	39	12	4	1	171.1	191	68	77	15	4	4		707	1	2.05	0.79	2.60	0.05	5.5	2.1	1.20	.293	4.04	87	2.96	73	10.03	20.4
9	Miguel Batista M. Batista	2	40	35	2011	TOT	5	2	.714	5	3.60	31	1	1	0	60.0	49	24	29	33	6	2	5	262	3	4.65	4.95	0.94	0.30	11.8	12.6	1.37	.247	4.35	97	4.37	117	7.35	-4.3
10	Mariano Rivera M. Rivera	2	40	61	2010	NYY	3	3	.500	0	1.80	45	0	0	33	60.0	39	12	14	11	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
11	Ken Takahashi K. Takahashi	2	40	28	2009	NYM	0	1	.000	0	2.96	23	0	0	0	27.1	23	9	9	14	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
12	Mike Remlinger M. Remlinger	2	40	36	2006	ATL	2	4	.333	0	4.03	19	0	0	2	22.1	27	10	11	9	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	Tom Burgmeier T. Burgmeier	2	40	17	1984	OAK	3	0	1.000	0	2.35	8	0	0	2	23.0	15	6	6	8	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
14	Bill Henry B. Henry	2	40	17	1968	TOT	0	2	.000	1	7.48	9	0	0	0	21.2	33	18	21	6	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
15	Art Herring A. Herring	2	40	35	1946	BKN	7	2	.778	2	3.35	34	0	0	5	86.0	91	32	39	29	1	13		373	2	3.56	3.03	1.17	0.21	9.1	7.8	1.40	.290	4.08	97	2.94	84	9.52	5.4
16	Boom-Boom Beck B. Beck	2	40	25	1945	TOT	8	5	.615	11	2.68	29	6	0	1	110.2	96	33	40	26	1	6		444	0	2.36	2.11	1.12	0.16	6.5	5.9	1.10	.244	3.25	71	2.98	80	7.81	9
17	Red Ruffing R. Ruffing	2	40	11	1945	NYY	7	3	.700	11	2.89	24	8	1	0	87.1	85	28	32	20	1	0		364	0	2.47	2.06	1.20	0.21	6.6	5.5	1.20	.262	3.30	86	3.01	87	8.76	4.4
18	Joe Heving J. Heving	2	40	27	1941	CLE	5	2	.714	3	2.29	18	2	1	5	70.2	63	18	21	31	1	13		298	0	2.29	3.95	0.58	0.25	6.0	10.4	1.33	.248	2.67	57	3.88	99	8.02	0.2
19	Herb Pennock H. Pennock	2	40	30	1934	BSA	2	0	1.000	2	3.05	16	1	0	2	62.0	68	21	31	16	0	20		265	1	2.32	2.32	1.00	0.29	6.0	6.0	1.35	.286	4.50	66	3.80	83	9.87	5.5
20	Eddie Plank E. Plank	2	40	37	1916	SLA	16	15	.516	26	2.33	88	17	3	3	235.2	203	61	78	67	6	9		930	2	3.36	2.56	1.31	0.08	9.5	7.2	1.15	.262	2.98	84	2.61	95	7.75	3.5
21	Fernando Rodney F. Rodney	3	40	61	2017	ARI	5	4	.556	0	4.23	65	0	0	39	55.1	40	26	29	26	2	53	3	231	7	10.57	4.23	2.50	0.49	28.1	11.3	1.19	.274	4.72	93	3.02	69	6.51	8.2
22	Koji Uehara K. Uehara	3	40	43	2015	BOS	2	4	.333	0	2.23	47	0	0	25	40.1	28	10	14	9	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
23	Darren Oliver D. Oliver	3	40	61	2011	TEX	5	5	.500	0	2.29	44	0	0	2	51.0	47	13	17	11	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
24	Tom Gordon T. Gordon	3	40	34	2008	PHI	5	4	.556	0	5.16	26	0	0	2	29.2	31	17	19	17	0	7	1	139	4	7.89	5.16	1.53	0.91	18.7	12.2	1.62	.301	5.76	119	4.40	101	9.40	-0.1
25	Mike Flanagan M. Flanagan	3	40	42	1992	BAL	0	0		0	8.05	17	0	0	0	34.2	50	31	34	23	5	15	1	180	4	4.41	5.97	0.74	0.78	9.4	12.8	2.11	.356	8.83	202	5.34	134	12.98	-5.2