Jon Berti was the oldest third baseman in 2025. He was 35 years old.

	NAME	AGE	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Jon Berti J. Berti	35	2025	CHC	51	100	12	21	2	0	0	2	5	2	22	11	3	107	23	2	0	0	0	1	.210	.262	.230	.492	5	-7.6	.226	43	-7.2
2	Nolan Arenado N. Arenado	34	2025	STL	107	401	48	95	18	1	12	52	28	3	49	3	0	436	151	31	0	4	4	10	.237	.289	.377	.666	42	-9.4	.287	84	-8.5
3	Max Muncy M. Muncy	34	2025	LAD	100	313	48	76	10	2	19	67	64	6	83	4	0	388	147	31	0	5	2	4	.243	.376	.470	.846	63	16.7	.366	138	17.5
4	Eugenio Suárez E. Suárez	33	2025	TOT	159	588	91	134	28	0	49	118	46	16	196	4	1	657	309	77	0	7	2	11	.228	.298	.526	.824	96	18	.347	124	18.9
5	Gio Urshela G. Urshela	33	2025	ATH	59	181	10	43	14	1	0	20	13	0	40	0	1	197	59	15	2	1	0	6	.238	.287	.326	.613	17	-6.8	.271	71	-6.7
6	Matt Chapman M. Chapman	32	2025	SFG	128	454	76	105	23	2	21	61	71	6	126	9	4	535	195	46	0	4	1	8	.231	.340	.430	.770	73	10.1	.336	119	11.8
7	Andy Ibáñez A. Ibáñez	32	2025	DET	91	176	24	42	8	0	4	21	12	4	26	4	1	193	62	12	0	1	0	6	.239	.301	.352	.653	19	-3.7	.289	85	-3.4
8	Manny Machado M. Machado	32	2025	SDP	159	615	91	169	33	0	27	95	55	3	131	14	3	678	283	60	0	5	4	16	.275	.335	.460	.795	96	15.5	.341	123	18.4
9	José Ramírez J. Ramírez	32	2025	CLE	158	593	103	168	34	3	30	85	66	8	74	44	7	672	298	67	0	5	22	9	.283	.360	.503	.863	105	25.4	.360	133	26.4
10	Alex Bregman A. Bregman	31	2025	BOS	114	433	64	118	28	0	18	62	51	9	70	1	1	495	200	46	0	2	3	12	.273	.360	.462	.821	76	17.1	.356	124	13.7
11	Jeimer Candelario J. Candelario	31	2025	CIN	22	80	3	9	2	0	2	10	9	0	29	0	1	91	17	4	0	2	0	1	.113	.198	.213	.410	2	-9.2	.189	9	-9.8
12	Paul DeJong P. DeJong	31	2025	WSH	57	193	18	44	10	0	6	23	11	1	70	4	0	208	72	16	0	3	0	3	.228	.269	.373	.642	19	-6	.278	77	-5.8
13	Vimael Machín V. Machín	31	2025	BAL	4	11	1	1	0	0	1	1	1	0	2	0	0	12	4	1	0	0	0	0	.091	.167	.364	.530	1	-0.8	.227	43	-0.8
14	Ramón Urías R. Urías	31	2025	TOT	112	352	33	85	17	0	11	44	27	2	88	3	0	391	135	28	0	10	0	6	.241	.292	.384	.675	39	-6.7	.292	87	-5.8
15	Kevin Newman K. Newman	31	2025	LAA	56	114	13	23	2	0	2	11	1	0	23	1	0	116	31	4	1	0	0	5	.202	.209	.272	.481	4	-9.8	.209	27	-10
16	Josh Rojas J. Rojas	31	2025	CWS	69	189	14	34	9	0	2	11	19	0	48	4	1	211	49	11	1	2	0	6	.180	.252	.259	.512	11	-13.8	.232	44	-14
17	Miguel Andujar M. Andujar	30	2025	TOT	94	321	36	102	17	1	10	44	17	1	49	1	0	341	151	28	0	2	1	8	.318	.352	.470	.822	52	11.3	.354	126	10.5
18	Ryan McMahon R. McMahon	30	2025	TOT	154	509	62	109	23	1	20	53	70	4	189	3	1	586	194	44	0	3	1	7	.214	.312	.381	.693	66	-3.3	.306	86	-9.5
19	Yoán Moncada Y. Moncada	30	2025	LAA	84	248	39	58	13	2	12	35	32	7	75	0	0	289	111	27	0	2	1	4	.234	.336	.448	.783	40	6.2	.339	116	5.6
20	Zach McKinstry Z. McKinstry	30	2025	DET	144	452	68	117	23	11	12	49	46	7	111	19	5	511	198	46	1	5	1	6	.259	.333	.438	.771	69	8.3	.333	115	9
21	Nicky Lopez N. Lopez	30	2025	TOT	18	24	2	1	0	0	0	1	4	0	4	0	0	28	1	0	0	0	0	1	.042	.179	.042	.220	-1	-4.2	.130	-24	-4.1
22	Santiago Espinal S. Espinal	30	2025	CIN	114	301	25	73	12	0	0	16	21	1	38	2	1	328	85	12	3	2	0	11	.243	.292	.282	.575	24	-14.5	.259	57	-16.9
23	Amed Rosario A. Rosario	29	2025	TOT	62	181	20	50	11	0	6	23	7	2	31	1	0	191	79	17	0	1	0	6	.276	.309	.436	.745	24	1.3	.321	106	1.4
24	Emmanuel Rivera E. Rivera	29	2025	BAL	42	120	5	30	4	0	0	13	6	1	24	1	0	127	34	4	0	0	0	3	.250	.291	.283	.575	9	-5.6	.258	65	-5.3
25	Miles Mastrobuoni M. Mastrobuoni	29	2025	SEA	76	152	20	38	4	0	1	12	17	0	29	6	3	175	45	5	5	1	0	2	.250	.324	.296	.620	16	-4.4	.282	85	-3.1