Ted Williams had the most walks by a player in his first 3 seasons, with 350 bases on balls.

Interpreted as:

most walks by a player in first three years

	NAME	BB	G	AB	R	H	2B	3B	HR	RBI	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Ted Williams T. Williams	350	436	1,582	400	563	120	28	91	378	8	145	8		1,944	1,012	239	4			33	.356	.475	.640	1.114	475	241.3	.496	177	203.1
2	Ferris Fain F. Fain	344	431	1,506	232	418	76	17	17	237	5	122	22		1,883	579	110	28			47	.278	.413	.384	.798	285	64.5	.385	121	49.2
3	Roy Thomas R. Thomas	330	419	1,557	371	494	21	9	1	108	41	153	106		1,980	536	31	52				.317	.449	.344	.793	369	101	.401	134	94.3
4	Frank Thomas F. Thomas	304	378	1,323	251	426	88	7	63	255	8	254	7	6	1,651	717	158	0	16	19	44	.322	.447	.542	.989	333	150.3	.437	177	147.3
5	Charlie Keller C. Keller	289	389	1,405	291	427	63	31	65	298	1	179	20		1,709	747	159	14			18	.304	.423	.532	.955	335	130.2	.434	149	112.3
6	Eddie Stanky E. Stanky	286	397	1,351	256	346	53	9	1	102	7	99	14		1,685	420	63	41			24	.256	.389	.311	.700	207	28.6	.349	106	12.9
7	Ralph Kiner R. Kiner	284	452	1,622	285	448	59	12	114	331	6	251	5		1,915	873	185	3			42	.276	.386	.538	.924	343	127.4	.422	144	103.8
8	Harlond Clift H. Clift	282	436	1,623	350	463	96	25	45	198	15	207	19		1,934	744	166	14				.285	.396	.458	.854	326	79.2	.394	111	31.1
9	Lu Blue L. Blue	281	427	1,673	334	498	91	27	12	166	16	135	31		2,004	679	130	34				.298	.404	.406	.809	308	58.1	.383	115	40
10	Eddie Mathews E. Mathews	271	440	1,583	286	441	75	17	112	296	5	259	17	10	1,875	886	204	9	7		24	.279	.384	.560	.944	344	129.6	.420	151	123
11	Bill Joyce B. Joyce	268	295	1,104	286	289	42	45	10	174	25	82	102		1,397	451	97					.262	.417	.409	.825	289	86.2	.407	131	65.6
12	Alvin Davis A. Davis	263	442	1,624	224	457	85	5	63	266	12	217	6	9	1,917	741	153	2	16	33	32	.281	.382	.456	.839	295	77.5	.370	127	62.1
13	Miller Huggins M. Huggins	262	435	1,600	294	442	34	22	3	94	12	129	81		1,919	529	59	45				.276	.382	.331	.713	258	62	.353	114	29.2
14	Max Bishop M. Bishop	257	318	1,062	195	284	51	8	6	81	8	108	13		1,353	369	65	26				.267	.414	.347	.761	196	27.8	.374	104	8.1
15	Kris Bryant K. Bryant	247	457	1,711	319	492	104	12	94	274	42	481	28	14	2,014	902	210	0	14	10	18	.288	.388	.527	.915	355	118.9	.389	144	108.1
16	Jim Gilliam J. Gilliam	246	444	1,750	342	473	79	33	26	155	11	105	44	36	2,032	696	138	18	7	4	25	.270	.362	.398	.760	265	27.9	.350	99	-1.3
17	Rhys Hoskins R. Hoskins	240	363	1,299	212	310	78	5	81	229	23	369	9	5	1,575	641	164	0	13	9	19	.239	.364	.493	.857	251	59.5	.363	125	49.5
18	Adam Dunn A. Dunn	240	340	1,160	208	279	58	4	72	171	23	370	31	13	1,431	561	134	1	7	23	16	.241	.379	.484	.863	227	52.7	.371	123	41.9
19	Don Buddin D. Buddin	239	401	1,359	198	325	73	3	27	133	13	267	8	5	1,637	485	103	16	10	2	34	.239	.356	.357	.713	197	10.3	.329	95	-10.4
20	Kosuke Fukudome K. Fukudome	238	426	1,358	203	352	83	10	34	156	4	283	25	22	1,622	557	127	8	14	13	27	.259	.368	.410	.778	218	25	.346	105	10
21	Dummy Hoy D. Hoy	238	385	1,503	282	424	38	22	3	121	25		156		1,766	515	63					.282	.389	.343	.732	318	60.1	.364	117	46.1
22	Steve Kemp S. Kemp	236	444	1,624	238	459	73	11	59	272	8	250	10	12	1,892	731	143	6	18	5	33	.283	.373	.450	.823	284	69.3	.368	125	56.1
23	Curt Blefary C. Blefary	234	430	1,435	214	361	56	12	67	215	17	223	9	10	1,714	642	135	21	7	18	21	.252	.361	.447	.809	252	74.2	.360	136	67.3
24	Juan Soto J. Soto	228	313	1,110	226	328	71	6	69	217	4	259	23	5	1,349	618	146	1	6	25	21	.295	.415	.557	.972	265	99.4	.405	152	90.1
25	Cody Bellinger C. Bellinger	228	450	1,595	292	443	88	14	111	288	7	405	39	9	1,840	892	213	0	10	43	22	.278	.368	.559	.928	321	97.2	.380	140	95.1