Rich Hill was the oldest in 2025. He was 45 years old.

	NAME	AGE	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	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	Rich Hill R. Hill	45	2025	KCR	2	0	2	.000	2	5.00	4	0	0	0	9.0	9	5	7	2	8	0	0	0	43	0	4.00	8.00	0.50	2.00	9.3	18.6	1.89	.241	7.00	117	7.79	187	9.00	-3.6
2	Justin Verlander J. Verlander	42	2025	SFG	29	4	11	.267	29	3.85	137	0	0	0	152.0	155	65	74	16	52	6	0	1	662	2	8.11	3.08	2.63	0.95	20.7	7.9	1.36	.308	4.38	94	3.84	97	9.18	2
3	Jesse Chavez J. Chavez	41	2025	ATL	4	0	1	.000	0	9.00	8	0	0	0	8.0	14	8	8	4	5	0	0	0	43	0	9.00	5.63	1.60	4.50	18.6	11.6	2.38	.385	9.00	211	9.50	235	15.75	-5
4	Yuli Gurriel Y. Gurriel	41	2025	SDP
5	Charlie Morton C. Morton	41	2025	TOT	33	9	11	.450	27	5.83	149	0	0	0	142.0	152	92	94	23	72	14	1	2	654	3	9.44	4.56	2.07	1.46	22.8	11.0	1.58	.326	5.96	145	4.95	121	9.63	-13.8
6	David Robertson D. Robertson	40	2025	PHI	20	2	0	1.000	0	4.08	22	0	0	2	17.2	18	8	9	4	8	0	4	1	78	0	11.21	4.08	2.75	2.04	28.2	10.3	1.47	.318	4.58	97	4.94	117	9.17	-1.4
7	Max Scherzer M. Scherzer	40	2025	TOR	17	5	5	.500	17	5.19	82	0	0	0	85.0	87	49	49	19	23	2	0	0	358	2	8.68	2.44	3.57	2.01	22.9	6.4	1.29	.293	5.19	128	4.99	120	9.21	-7.7
8	Justin Turner J. Turner	40	2025	CHC
9	Chris Martin C. Martin	39	2025	TEX	49	2	6	.250	0	2.98	43	0	0	2	42.1	43	14	18	6	8	1	10	3	174	2	9.14	1.70	5.38	1.28	24.7	4.6	1.20	.319	3.83	73	3.58	84	9.14	3.2
10	Adam Ottavino A. Ottavino	39	2025	NYY	3	0	0		0	0.00	3	0	0	0	1.2	0	0	0	0	4	0	0	0	9	0	16.20	21.60	0.75	0.00	33.3	44.4	2.40	.000	0.00	0	6.73	157	0.00	-0.4
11	Carlos Santana C. Santana	39	2025	TOT
12	Carlos Carrasco C. Carrasco	38	2025	TOT	11	2	2	.500	9	7.09	34	0	0	0	45.2	61	36	36	10	17	0	2	0	212	1	6.70	3.35	2.00	1.97	16.0	8.0	1.71	.338	7.09	171	5.60	133	12.02	-6.9
13	Yu Darvish Y. Darvish	38	2025	SDP	15	5	5	.500	15	5.38	68	0	0	0	72.0	66	43	44	14	19	6	0	0	296	4	8.50	2.38	3.58	1.75	23.0	6.4	1.18	.275	5.50	133	4.81	118	8.25	-5.8
14	Luis García L. García	38	2025	TOT	58	2	2	.500	0	3.42	48	0	0	2	55.1	55	21	23	2	26	0	15	5	233	9	7.81	4.23	1.85	0.33	20.6	11.2	1.46	.338	3.74	82	3.27	77	8.95	5.8
15	Martín Maldonado M. Maldonado	38	2025	SDP
16	Andrew McCutchen A. McCutchen	38	2025	PIT
17	Wade Miley W. Miley	38	2025	CIN	3	1	0	1.000	2	6.75	7	0	0	0	12.0	15	9	9	3	6	1	1	0	55	0	5.25	4.50	1.17	2.25	12.7	10.9	1.75	.316	6.75	151	6.96	159	11.25	-3.2
18	Caleb Thielbar C. Thielbar	38	2025	CHC	67	3	4	.429	0	2.64	56	0	0	1	58.0	38	17	17	5	13	0	4	1	220	0	8.69	2.02	4.31	0.78	25.5	5.9	0.88	.226	2.64	65	2.99	74	5.90	6.9
19	Kirby Yates K. Yates	38	2025	LAD	50	4	3	.571	0	5.23	52	0	0	3	41.1	38	24	26	9	17	1	15	0	178	1	11.32	3.70	3.06	1.96	29.2	9.6	1.33	.293	5.66	126	4.75	113	8.27	-2.4
20	Ryan Brasier R. Brasier	37	2025	CHC	28	0	1	.000	1	4.50	20	0	0	0	26.0	27	13	13	2	5	0	4	0	105	0	6.92	1.73	4.00	0.69	19.0	4.8	1.23	.321	4.50	110	3.17	78	9.35	2.6
21	Aroldis Chapman A. Chapman	37	2025	BOS	67	5	3	.625	0	1.17	85	0	0	32	61.1	28	8	9	3	15	0	43	0	228	6	12.47	2.20	5.67	0.44	37.3	6.6	0.70	.200	1.32	27	1.73	41	4.11	16.8
22	Jacob deGrom J. deGrom	37	2025	TEX	30	12	8	.600	30	2.97	185	0	0	0	172.2	122	57	57	26	37	3	0	0	669	3	9.64	1.93	5.00	1.36	27.7	5.5	0.92	.230	2.97	73	3.64	86	6.36	11.7
23	Kyle Gibson K. Gibson	37	2025	BAL	4	0	3	.000	4	16.78	10	0	0	0	12.1	29	23	23	7	7	0	0	0	73	1	7.30	5.11	1.43	5.11	13.7	9.6	2.92	.449	16.78	419	10.59	259	21.16	-9.1
24	Paul Goldschmidt P. Goldschmidt	37	2025	NYY
25	Kenley Jansen K. Jansen	37	2025	LAA	62	5	4	.556	0	2.59	57	0	0	29	59.0	37	17	18	8	19	1	47	2	234	0	8.69	2.90	3.00	1.22	24.4	8.1	0.95	.195	2.75	62	3.98	93	5.64	2.1