Alex Bregman has the most career ribbies by a third baseman in the postseason, with 55 RBIs.

	NAME	RBI	G	AB	R	H	2B	3B	HR	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Alex Bregman A. Bregman	55	102	380	63	91	18	1	19	56	9	66	3	1	447	168	38	0	2	4	11	.239	.349	.442	.791
2	Justin Turner J. Turner	42	86	315	43	85	19	1	13	38	13	59	5	0	368	145	33	0	2	1	6	.270	.370	.460	.830
3	Chipper Jones C. Jones	39	83	303	52	89	18	0	11	64	1	55	8	3	374	140	29	1	5	10	8	.294	.413	.462	.875
4	Alex Rodriguez A. Rodriguez	33	60	221	37	54	13	0	10	36	9	59	7	2	269	97	23	0	3	4	5	.244	.368	.439	.807
5	David Freese D. Freese	30	51	174	21	49	15	1	8	19	2	47	0	1	196	90	24	0	1	2	8	.282	.357	.517	.874
6	Scott Brosius S. Brosius	30	58	196	19	48	8	1	8	8	2	46	0	2	217	82	17	8	3	3	4	.245	.278	.418	.696
7	Matt Williams M. Williams	28	51	190	23	47	9	0	6	19	2	41	1	0	214	74	15	1	2	0	2	.247	.319	.389	.709
8	Graig Nettles G. Nettles	27	52	181	17	40	5	1	5	19	1	21	0	1	206	62	11	0	5	0	5	.221	.291	.343	.634
9	Ron Cey R. Cey	27	45	161	22	42	8	0	7	25	1	29	1	0	189	71	15	1	1	3	2	.261	.362	.441	.803
10	Rafael Devers R. Devers	26	26	89	21	27	0	0	8	12	0	25	1	0	102	51	8	0	1	0	1	.303	.382	.573	.955
11	Evan Longoria E. Longoria	26	51	180	21	32	8	0	10	14	1	63	1	0	197	70	18	1	1	0	6	.178	.240	.389	.629
12	Terry Pendleton T. Pendleton	23	66	230	26	58	12	3	3	12	0	30	2	3	244	85	18	1	1	3	4	.252	.288	.370	.658
13	George Brett G. Brett	23	43	166	30	56	8	5	10	17	0	20	2	3	184	104	23	0	1	6	4	.337	.397	.627	1.023
14	Anthony Rendon A. Rendon	21	31	117	16	33	8	0	5	18	0	19	1	0	138	56	13	0	3	3	0	.282	.370	.479	.848
15	Mike Lowell M. Lowell	21	34	115	17	29	8	0	4	13	1	15	1	0	132	49	12	0	3	2	3	.252	.326	.426	.752
16	Brooks Robinson B. Robinson	21	39	145	17	44	8	0	5	6	0	9	0	2	156	67	13	1	4	1	3	.303	.323	.462	.785
17	Pablo Sandoval P. Sandoval	20	42	157	21	53	13	0	6	10	3	24	0	0	171	84	19	0	1	3	7	.338	.386	.535	.921
18	José Ramírez J. Ramírez	19	45	167	17	40	10	0	4	20	1	33	2	2	190	62	14	0	2	7	2	.240	.321	.371	.692
19	Robin Ventura R. Ventura	19	34	121	12	22	7	0	3	24	1	21	0	0	150	38	10	0	4	4	3	.182	.313	.314	.627
20	Kris Bryant K. Bryant	18	44	170	18	43	8	1	7	14	1	55	1	0	185	74	16	0	0	0	3	.253	.314	.435	.749
21	Mike Moustakas M. Moustakas	18	42	161	17	34	5	0	6	9	1	31	0	0	173	57	11	1	1	3	2	.211	.256	.354	.610
22	Morgan Ensberg M. Ensberg	18	26	98	8	22	5	0	2	9	2	16	0	2	110	33	7	0	1	1	5	.224	.300	.337	.637
23	Carney Lansford C. Lansford	18	33	128	17	39	3	0	2	10	0	10	4	1	141	48	5	3	0	0	3	.305	.355	.375	.730
24	Home Run Baker H. Run Baker	18	25	91	15	33	7	1	3	5	0	11	1	4	97	51	11	0		2	1	.363	.396	.560	.956
25	Manny Machado M. Machado	17	35	135	14	27	5	0	9	9	0	39	0	0	146	59	14	2	0	0	4	.200	.250	.437	.687