Si Johnson lost the most games in 1934, with 22 games.

	NAME	L	SEASON	TM	W	L%	G	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Si Johnson S. Johnson	22	1934	CIN	7	.759	46	.241	31	5.22	89	9	0	3	215.2	264	125	150	15	84	7	5	993	4	3.71	3.51	1.06	0.63	9.0	8.5	1.61	.312	6.26	131	4.47	111	11.02	-11.4
2	Paul Derringer P. Derringer	21	1934	CIN	15	.583	47	.417	31	3.59	122	18	1	4	261.0	297	104	129	8	59	4	15	1,128	7	4.21	2.03	2.07	0.28	10.8	5.2	1.36	.309	4.45	90	3.31	82	10.24	20.5
3	Bobo Newsom B. Newsom	20	1934	SLA	16	.556	47	.444	32	4.01	135	15	2	5	262.1	259	117	138	15	149	1	9	1,159	5	4.63	5.11	0.91	0.51	11.6	12.9	1.56	.284	4.73	83	4.55	95	8.89	7.5
4	Milt Gaston M. Gaston	19	1934	CWS	6	.760	29	.240	28	5.85	48	10	1	0	194.0	247	126	146	16	84	1	1	895	13	2.23	3.90	0.57	0.74	5.4	9.4	1.71	.310	6.77	130	5.01	112	11.46	-11.8
5	George Blaeholder G. Blaeholder	18	1934	SLA	14	.563	39	.438	33	4.22	66	14	1	3	234.1	276	110	130	16	68	0	5	1,021	0	2.53	2.61	0.97	0.61	6.5	6.7	1.47	.299	4.99	88	4.32	90	10.60	12.4
6	Phil Collins P. Collins	18	1934	PHN	13	.581	45	.419	32	4.18	72	15	0	1	254.0	277	118	138	30	87	3	11	1,121	2	2.55	3.08	0.83	1.06	6.4	7.8	1.43	.266	4.89	91	5.15	111	9.81	-10.8
7	Larry French L. French	18	1934	PIT	12	.600	49	.400	34	3.58	103	16	3	1	263.2	299	105	135	8	59	3	7	1,141	4	3.52	2.01	1.75	0.27	9.0	5.2	1.36	.301	4.61	88	3.44	84	10.21	19.3
8	Sugar Cain S. Cain	17	1934	PHA	9	.654	36	.346	32	4.41	66	15	0	0	230.2	235	113	128	15	128	3	2	1,035	3	2.58	4.99	0.52	0.59	6.4	12.4	1.57	.267	4.99	96	5.10	112	9.17	-13.4
9	Curt Davis C. Davis	17	1934	PHN	19	.472	51	.528	31	2.95	99	18	3	5	274.1	283	90	114	14	60	7	16	1,133	1	3.25	1.97	1.65	0.46	8.7	5.3	1.25	.282	3.74	64	3.79	82	9.28	24.9
10	Benny Frey B. Frey	16	1934	CIN	11	.593	39	.407	30	3.52	33	12	2	2	245.1	288	96	118	10	42	2	5	1,058	2	1.21	1.54	0.79	0.37	3.1	4.0	1.35	.286	4.33	88	3.92	98	10.57	2.3
11	Bump Hadley B. Hadley	16	1934	SLA	10	.615	39	.385	32	4.35	79	7	2	1	213.0	212	103	120	14	127	6	6	969	2	3.34	5.37	0.62	0.59	8.2	13.1	1.59	.266	5.07	90	5.11	107	8.96	-6.3
12	Van Mungo V. Mungo	16	1934	BKN	18	.471	45	.529	38	3.37	184	22	3	3	315.1	300	118	137	15	104	3	6	1,329	6	5.25	2.97	1.77	0.43	13.8	7.8	1.28	.279	3.91	85	3.59	89	8.56	14.7
13	Joe Cascarella J. Cascarella	15	1934	PHA	12	.556	42	.444	22	4.68	71	9	2	1	194.1	214	101	111	8	104	3	13	870	3	3.29	4.82	0.68	0.37	8.2	12.0	1.64	.301	5.14	102	4.58	101	9.91	-0.2
14	Monte Weaver M. Weaver	15	1934	WSH	11	.577	31	.423	31	4.79	51	11	0	0	204.2	255	109	127	16	63	0	0	916	4	2.24	2.77	0.81	0.70	5.6	6.9	1.55	.304	5.58	110	4.56	105	11.21	-5.9
15	Johnny Welch J. Welch	15	1934	BSA	13	.536	41	.464	22	4.49	91	8	1	0	206.1	223	103	112	14	76	8	14	913	5	3.97	3.32	1.20	0.61	10.0	8.3	1.45	.289	4.89	97	4.34	94	9.73	6.1
16	Ed Brandt E. Brandt	14	1934	BSN	16	.467	40	.533	28	3.53	106	20	3	5	255.0	249	100	111	13	83	4	10	1,080	4	3.74	2.93	1.28	0.46	9.8	7.7	1.30	.270	3.92	93	3.98	104	8.79	-6.5
17	Freddie Fitzsimmons F. Fitzsimmons	14	1934	NYG	18	.438	38	.563	37	3.04	73	14	3	1	263.1	266	89	114	12	51	1	1	1,082	9	2.49	1.74	1.43	0.41	6.7	4.7	1.20	.269	3.90	77	3.75	94	9.09	6.1
18	Bill Lee B. Lee	14	1934	CHC	13	.519	35	.481	29	3.40	104	16	4	1	214.1	218	81	91	9	74	2	4	910	9	4.37	3.11	1.41	0.38	11.4	8.1	1.36	.290	3.82	85	3.76	94	9.15	5.9
19	Les Tietje L. Tietje	14	1934	CWS	5	.737	34	.263	22	4.81	81	6	1	0	176.0	174	94	106	20	96	2	7	786	2	4.14	4.91	0.84	1.02	10.3	12.2	1.53	.262	5.42	107	5.35	120	8.90	-17.3
20	Ted Lyons T. Lyons	13	1934	CWS	11	.542	30	.458	24	4.87	53	21	0	1	205.1	249	111	138	15	66	2	4	928	2	2.32	2.89	0.80	0.66	5.7	7.1	1.53	.295	6.05	108	4.55	102	10.91	-1.9
21	Fritz Ostermueller F. Ostermueller	13	1934	BSA	10	.565	33	.435	23	3.49	75	9	0	3	198.2	200	77	93	7	99	1	8	881	6	3.40	4.48	0.76	0.32	8.5	11.2	1.51	.276	4.21	75	4.33	94	9.06	6.1
22	Monte Pearson M. Pearson	13	1934	CLE	18	.419	39	.581	33	4.52	140	19	0	2	254.2	257	128	144	16	130	1	6	1,136	15	4.95	4.59	1.08	0.57	12.3	11.4	1.52	.284	5.09	99	4.38	96	9.08	5.1
23	Bill Swift B. Swift	13	1934	PIT	11	.542	37	.458	25	3.98	81	13	1	0	212.2	244	94	107	15	46	8	7	923	1	3.43	1.95	1.76	0.63	8.8	5.0	1.36	.296	4.53	98	4.04	99	10.33	1.4
24	Ray Benge R. Benge	12	1934	BKN	14	.462	36	.538	32	4.32	64	14	1	0	227.0	252	109	124	11	61	3	2	996	1	2.54	2.42	1.05	0.44	6.4	6.1	1.38	.281	4.92	109	4.03	100	9.99	-0.8
25	Ralph Birkofer R. Birkofer	12	1934	PIT	11	.522	41	.478	23	4.10	71	11	0	1	204.0	227	93	106	11	66	5	13	898	2	3.13	2.91	1.08	0.49	7.9	7.3	1.44	.290	4.68	101	4.17	102	10.01	-1.7