Kyle Gibson gave up the most walks in 2020, with 30 allowed.

Interpreted as:

most walks allowed with a minimum of 1 IP per team game by a player 2020

	NAME	BB	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	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	Kyle Gibson K. Gibson	30	2020	TEX	12	2	6	.250	12	5.35	58	1	1	0	67.1	73	40	44	12	6	0	1	301	1	7.75	4.01	1.93	1.60	19.3	10.0	1.53	.313	5.88	119	5.38	118	9.76	-5.8
2	Lucas Giolito L. Giolito	28	2020	CWS	12	4	3	.571	12	3.48	97	1	1	0	72.1	47	28	31	8	2	0	0	288	3	12.07	3.48	3.46	1.00	33.7	9.7	1.04	.255	3.86	78	3.18	69	5.85	11.2
3	Martín Pérez M. Pérez	28	2020	BOS	12	3	5	.375	12	4.50	46	0	0	0	62.0	55	31	33	8	3	0	0	262	2	6.68	4.06	1.64	1.16	17.6	10.7	1.34	.266	4.79	96	4.88	110	7.98	-3
4	Carlos Carrasco C. Carrasco	27	2020	CLE	12	3	4	.429	12	2.91	82	0	0	0	68.0	55	22	22	8	2	0	0	280	6	10.85	3.57	3.04	1.06	29.3	9.6	1.21	.292	2.91	66	3.58	81	7.28	6.5
5	José Berríos J. Berríos	26	2020	MIN	12	5	4	.556	12	4.00	68	0	0	0	63.0	57	28	28	8	3	0	0	271	5	9.71	3.71	2.62	1.14	25.1	9.6	1.32	.295	4.00	91	4.06	92	8.14	2.4
6	Johnny Cueto J. Cueto	26	2020	SFG	12	2	3	.400	12	5.40	56	0	0	0	63.1	61	38	41	9	3	0	0	277	1	7.96	3.69	2.15	1.28	20.2	9.4	1.37	.284	5.83	123	4.63	109	8.67	-2.8
7	Lance Lynn L. Lynn	25	2020	TEX	13	6	3	.667	13	3.32	89	1	0	0	84.0	64	31	34	13	6	0	0	344	2	9.54	2.68	3.56	1.39	25.9	7.3	1.06	.242	3.64	74	4.18	91	6.86	3.7
8	Germán Márquez G. Márquez	25	2020	COL	13	4	6	.400	13	3.75	73	0	0	0	81.2	78	34	41	6	0	0	0	344	4	8.04	2.76	2.92	0.66	21.2	7.3	1.26	.300	4.52	74	3.27	69	8.60	12.6
9	Zac Gallen Z. Gallen	25	2020	ARI	12	3	2	.600	12	2.75	82	0	0	0	72.0	55	22	24	9	2	0	0	291	4	10.25	3.13	3.28	1.13	28.2	8.6	1.11	.266	3.00	61	3.65	84	6.88	5.7
10	Luis Castillo L. Castillo	24	2020	CIN	12	4	6	.400	12	3.21	89	1	0	0	70.0	62	25	31	5	1	0	0	292	1	11.44	3.09	3.71	0.64	30.5	8.2	1.23	.329	3.99	68	2.64	57	7.97	15.2
11	Kyle Freeland K. Freeland	23	2020	COL	13	2	3	.400	13	4.33	46	0	0	0	70.2	77	34	34	9	3	0	0	304	0	5.86	2.93	2.00	1.15	15.1	7.6	1.42	.305	4.33	85	4.64	98	9.81	0.7
12	Aaron Nola A. Nola	23	2020	PHI	12	5	5	.500	12	3.28	96	2	1	0	71.1	54	26	31	9	2	0	2	289	1	12.11	2.90	4.17	1.14	33.2	8.0	1.08	.283	3.91	73	3.18	70	6.81	10.6
13	Max Scherzer M. Scherzer	23	2020	WSH	12	5	4	.556	12	3.74	92	1	0	0	67.1	70	28	30	10	1	0	1	295	6	12.30	3.07	4.00	1.34	31.2	7.8	1.38	.355	4.01	83	3.45	76	9.36	8
14	Brady Singer B. Singer	23	2020	KCR	12	4	5	.444	12	4.06	61	0	0	0	64.1	52	29	29	8	2	0	0	263	5	8.53	3.22	2.65	1.12	23.2	8.7	1.17	.260	4.06	89	4.07	93	7.27	2.3
15	Matthew Boyd M. Boyd	22	2020	DET	12	3	7	.300	12	6.71	60	1	0	0	60.1	67	45	46	15	5	0	0	271	5	8.95	3.28	2.73	2.24	22.1	8.1	1.48	.308	6.86	153	5.77	131	9.99	-9.3
16	Shane Bieber S. Bieber	21	2020	CLE	12	8	1	.889	12	1.63	122	0	0	0	77.1	46	14	15	7	1	0	0	297	5	14.20	2.44	5.81	0.81	41.1	7.1	0.87	.267	1.75	37	2.06	46	5.35	20.5
17	Dinelson Lamet D. Lamet	20	2020	SDP	12	3	1	.750	12	2.09	93	0	0	0	69.0	39	16	18	5	4	0	0	267	1	12.13	2.61	4.65	0.65	34.8	7.5	0.86	.234	2.35	49	2.47	56	5.09	15.1
18	Zach Davies Z. Davies	19	2020	SDP	12	7	4	.636	12	2.73	63	0	0	0	69.1	55	21	26	9	0	0	0	276	2	8.18	2.47	3.32	1.17	22.8	6.9	1.07	.249	3.38	64	3.87	87	7.14	4.4
19	Andrew Heaney A. Heaney	19	2020	LAA	12	4	3	.571	12	4.45	70	0	0	0	66.2	63	33	35	9	2	0	1	279	2	9.45	2.57	3.68	1.21	25.1	6.8	1.23	.302	4.72	99	3.78	83	8.51	5.8
20	Alec Mills A. Mills	19	2020	CHC	11	5	5	.500	11	4.48	46	1	1	0	62.1	53	31	31	13	2	0	0	252	0	6.64	2.74	2.42	1.88	18.3	7.5	1.16	.233	4.48	101	5.43	123	7.65	-7.2
21	Patrick Corbin P. Corbin	18	2020	WSH	11	2	7	.222	11	4.66	60	0	0	0	65.2	85	34	35	10	0	0	1	295	1	8.22	2.47	3.33	1.37	20.3	6.1	1.57	.362	4.80	103	4.16	92	11.65	2.8
22	Jacob deGrom J. deGrom	18	2020	NYM	12	4	2	.667	12	2.38	104	0	0	0	68.0	47	18	21	7	0	0	0	268	4	13.76	2.38	5.78	0.93	38.8	6.7	0.96	.288	2.78	57	2.26	52	6.22	15.9
23	Antonio Senzatela A. Senzatela	18	2020	COL	12	5	3	.625	12	3.44	41	1	0	0	73.1	71	28	29	9	4	0	0	303	0	5.03	2.21	2.28	1.10	13.5	5.9	1.21	.268	3.56	68	4.56	97	8.71	1.4
24	Brandon Woodruff B. Woodruff	18	2020	MIL	13	3	5	.375	13	3.05	91	1	0	0	73.2	55	25	26	9	4	0	0	293	1	11.12	2.20	5.06	1.10	31.1	6.1	0.99	.269	3.18	68	3.20	72	6.72	10.2
25	Chris Bassitt C. Bassitt	17	2020	OAK	11	5	2	.714	11	2.29	55	0	0	0	63.0	56	16	18	6	2	0	0	261	2	7.86	2.43	3.24	0.86	21.1	6.5	1.16	.276	2.57	54	3.58	83	8.00	5.2