best whip as a pitcher in a month with a minimum of 40 innings pitched in the 1920's

Between the 1920 and 1929 seasons, Guy Bush had the lowest WHIP when pitching at least 40 innings in a month, with a WHIP of 0.68 in August 1926.

	NAME	WHIP	IP	MONTH	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	BABIP	RA	H/9
1	Guy Bush G. Bush	0.68	51.2	August 1926	7	6	0	1.000	5	0.17	8	4	2	0	25	1	5	1	10	0	1	183	1	1.39	1.74	0.80	0.17	4.4	5.5	.146	0.87	4.35
2	Burleigh Grimes B. Grimes	0.74	71.1	June 1928	8	7	1	.875	7	1.64	27	7	2	0	42	13	16	2	11	1	1	266	1	3.41	1.39	2.45	0.25	10.2	4.1	.178	2.02	5.30
3	Jesse Haines J. Haines	0.76	63.0	June 1920	9	6	2	.750	7	1.14	26	6	3	0	40	8	11	0	8	3	2	237	0	3.71	1.14	3.25	0.00	11.0	3.4	.200	1.57	5.71
4	Eddie Rommel E. Rommel	0.79	43.0	August 1928	11	3	0	1.000	1	0.84	7	0	0	3	27	4	4	0	7	0	6	156	0	1.47	1.47	1.00	0.00	4.5	4.5	.190	0.84	5.65
5	Bullet Joe Bush B. Joe Bush	0.81	47.0	August 1926	7	3	2	.600	5	1.72	15	5	1	0	28	9	11	3	10	1	0	176	0	2.87	1.91	1.50	0.57	8.5	5.7	.170	2.11	5.36
6	Ray Kremer R. Kremer	0.81	67.2	September 1927	9	8	0	1.000	7	0.93	20	7	3	1	46	7	8	1	9	0	2	249	0	2.66	1.20	2.22	0.13	8.0	3.6	.205	1.06	6.12
7	Red Lucas R. Lucas	0.81	54.0	September 1927	6	5	1	.833	6	1.83	6	6	2	0	38	11	11	1	6	0	0	202	0	1.00	1.00	1.00	0.17	3.0	3.0	.196	1.83	6.33
8	Babe Adams B. Adams	0.82	55.0	August 1920	7	6	0	1.000	7	1.31	18	5	3	0	40	8	9	1	5	0	0	204	0	2.95	0.82	3.60	0.16	8.8	2.5	.217	1.47	6.55
9	Pete Donohue P. Donohue	0.82	62.0	September 1926	11	4	3	.571	7	1.45	15	4	3	1	44	10	13	0	7	3	3	236	0	2.18	1.02	2.14	0.00	6.4	3.0	.209	1.89	6.39
10	Dazzy Vance D. Vance	0.83	61.2	September 1924	8	5	2	.714	7	2.34	60	5	1	0	38	16	19	6	13	5	1	234	2	8.76	1.90	4.62	0.88	25.6	5.6	.213	2.77	5.55
11	Tommy Thomas T. Thomas	0.83	63.2	May 1927	8	6	1	.857	7	0.99	32	6	2	0	38	7	9	1	15	0	1	243	0	4.52	2.12	2.13	0.14	13.2	6.2	.190	1.27	5.37
12	Ted Lyons T. Lyons	0.84	61.0	August 1926	7	4	2	.667	6	0.89	16	6	2	0	37	6	8	2	14	0	1	236	0	2.36	2.07	1.14	0.30	6.8	5.9	.172	1.18	5.46
13	Walter Johnson W. Johnson	0.84	58.1	August 1924	7	7	0	1.000	7	1.23	28	5	2	0	36	8	8	0	13	2	0	223	1	4.32	2.01	2.15	0.00	12.6	5.8	.200	1.23	5.55
14	Urban Shocker U. Shocker	0.86	69.0	September 1921	8	6	2	.750	8	1.96	27	7	3	0	49	15	17	3	10	0	0	264	0	3.52	1.30	2.70	0.39	10.2	3.8	.205	2.22	6.39
15	Pat Malone P. Malone	0.86	49.0	May 1928	6	4	1	.800	5	1.65	28	4	1	0	31	9	11	3	11	0	1	187	2	5.14	2.02	2.55	0.55	15.0	5.9	.193	2.02	5.69
16	Red Faber R. Faber	0.86	77.0	July 1921	8	7	1	.875	8	0.82	37	8	2	0	51	7	7	2	15	0	0	288	0	4.32	1.75	2.47	0.23	12.8	5.2	.209	0.82	5.96
17	Dazzy Vance D. Vance	0.87	46.0	September 1928	6	4	1	.800	5	0.78	41	4	0	0	26	4	9	1	14	1	1	179	0	8.02	2.74	2.93	0.20	22.9	7.8	.205	1.76	5.09
18	Guy Morton G. Morton	0.87	43.2	July 1921	8	4	1	.800	3	1.03	15	2	2	0	30	5	14	0	8	1	4	169	0	3.09	1.65	1.88	0.00	8.9	4.7	.207	2.89	6.18
19	Lefty Grove L. Grove	0.87	49.1	August 1928	8	6	0	1.000	5	1.46	32	5	1	0	35	8	12	2	8	0	2	187	0	5.84	1.46	4.00	0.36	17.1	4.3	.228	2.19	6.39
20	Dolf Luque D. Luque	0.87	42.1	August 1927	6	4	1	.800	5	1.91	14	4	2	0	30	9	9	2	7	0	1	159	1	2.98	1.49	2.00	0.43	8.8	4.4	.206	1.91	6.38
21	Johnny Morrison J. Morrison	0.88	41.0	August 1921	5	3	2	.600	5	1.98	9	3	2	0	28	9	9	2	8	0	0	153	0	1.98	1.76	1.13	0.44	5.9	5.2	.194	1.98	6.15
22	Garland Braxton G. Braxton	0.88	55.2	July 1928	7	3	2	.600	7	2.43	17	4	0	0	40	15	20	3	9	3	0	222	1	2.75	1.46	1.89	0.49	7.7	4.1	.195	3.23	6.47
23	George Uhle G. Uhle	0.89	40.2	August 1925	6	4	2	.667	5	2.43	19	4	1	0	27	11	11	2	9	2	1	153	2	4.20	1.99	2.11	0.44	12.4	5.9	.207	2.43	5.98
24	Grover Alexander G. Alexander	0.89	49.2	August 1926	10	4	2	.667	5	2.17	11	4	1	2	35	12	13	2	9	0	5	193	0	1.99	1.63	1.22	0.36	5.7	4.7	.193	2.36	6.34
25	Art Nehf A. Nehf	0.90	41.1	September 1920	6	4	1	.800	5	1.09	15	4	2	0	29	5	8	0	8	1	1	158	0	3.27	1.74	1.88	0.00	9.5	5.1	.216	1.74	6.31