Mark Leiter lost the most games in 1997, with 17 games.

Interpreted as:

most losses by a player MLB 1997

	NAME	L	SEASON	TM	W	L%	G	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	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	Mark Leiter M. Leiter	17	1997	PHI	10	.630	31	.370	31	5.67	148	3	0	0	182.2	216	115	132	25	64	9	0	4	832	11	7.29	3.15	2.31	1.23	17.8	7.7	1.53	.326	6.50	132	4.46	105	10.64	-4.5
2	James Baldwin J. Baldwin	15	1997	CWS	12	.556	32	.444	32	5.27	140	1	0	0	200.0	205	117	128	19	83	5	0	3	879	14	6.30	3.74	1.69	0.86	15.9	9.4	1.44	.294	5.76	119	4.26	96	9.23	3.9
3	Steve Cooke S. Cooke	15	1997	PIT	9	.625	32	.375	32	4.30	109	0	0	0	167.1	184	80	95	15	77	9	0	11	756	8	5.86	4.14	1.42	0.81	14.4	10.2	1.56	.310	5.11	100	4.51	106	9.90	-5
4	Cal Eldred C. Eldred	15	1997	MIL	13	.536	34	.464	34	4.99	122	1	1	0	202.0	207	112	118	31	89	9	0	0	885	5	5.44	3.97	1.37	1.38	13.8	10.1	1.47	.278	5.26	107	5.34	118	9.22	-18.3
5	Tim Wakefield T. Wakefield	15	1997	BOS	12	.556	35	.444	29	4.25	151	4	2	0	201.1	193	95	109	24	87	16	2	5	866	6	6.75	3.89	1.74	1.07	17.4	10.0	1.39	.287	4.87	91	4.69	106	8.63	-5.9
6	Jon Lieber J. Lieber	14	1997	PIT	11	.560	33	.440	32	4.49	160	1	0	0	188.1	193	94	102	23	51	1	0	8	799	3	7.65	2.44	3.14	1.10	20.0	6.4	1.30	.301	4.87	105	3.82	90	9.22	8.7
7	Jaime Navarro J. Navarro	14	1997	CWS	9	.609	33	.391	33	5.79	142	2	0	0	209.2	267	135	155	22	73	3	0	6	957	14	6.10	3.13	1.95	0.94	14.8	7.6	1.62	.342	6.65	131	4.20	95	11.46	5.5
8	Scott Sanders S. Sanders	14	1997	TOT	6	.700	47	.300	20	5.86	120	1	1	2	139.2	152	91	92	30	62	4	15	6	626	8	7.73	4.00	1.94	1.93	19.2	9.9	1.53	.298	5.93	128	5.59	121	9.79	-14.7
9	John Smiley J. Smiley	14	1997	TOT	11	.560	26	.440	26	5.31	120	0	0	0	154.1	184	91	99	26	41	7	0	3	674	5	7.00	2.39	2.93	1.52	17.8	6.1	1.46	.329	5.77	124	4.67	108	10.73	-5.9
10	Woody Williams W. Williams	14	1997	TOR	9	.609	31	.391	31	4.35	124	0	0	0	194.2	201	94	98	31	66	5	0	3	833	7	5.73	3.05	1.88	1.43	14.9	7.9	1.37	.280	4.53	95	4.99	111	9.29	-11.2
11	Kevin Appier K. Appier	13	1997	KCR	9	.591	34	.409	34	3.40	196	4	1	0	235.2	215	89	96	24	74	4	0	2	972	14	7.49	2.83	2.65	0.92	20.2	7.6	1.23	.283	3.67	74	3.75	81	8.21	22.4
12	Scott Karl S. Karl	13	1997	MIL	10	.565	32	.435	32	4.47	119	1	0	0	193.1	212	96	103	23	67	4	0	1	839	6	5.54	3.12	1.78	1.07	14.2	8.0	1.44	.302	4.79	96	4.52	100	9.87	0.2
13	Terry Mulholland T. Mulholland	13	1997	TOT	6	.684	40	.316	27	4.24	99	1	0	0	186.2	190	88	100	24	51	11	5	3	794	3	4.77	2.46	1.94	1.16	12.5	6.4	1.29	.273	4.82	99	4.71	109	9.16	-8.2
14	Carlos Perez C. Perez	13	1997	MON	12	.520	33	.480	32	3.88	110	8	5	0	206.2	206	89	109	21	48	4	0	1	857	2	4.79	2.09	2.29	0.91	12.8	5.6	1.23	.274	4.75	92	4.11	98	8.97	1.8
15	Bob Tewksbury B. Tewksbury	13	1997	MIN	8	.619	26	.381	26	4.22	92	5	2	0	168.2	200	79	83	12	31	1	0	1	721	2	4.91	1.65	2.97	0.64	12.8	4.3	1.37	.321	4.43	91	3.50	77	10.67	19.2
16	Tim Belcher T. Belcher	12	1997	KCR	13	.480	32	.520	32	5.02	113	3	1	0	213.1	242	119	128	31	70	5	0	2	927	7	4.77	2.95	1.61	1.31	12.2	7.6	1.46	.298	5.40	109	4.99	108	10.21	-8.3
17	Jim Bullinger J. Bullinger	12	1997	MON	7	.632	36	.368	25	5.56	87	2	2	0	155.1	165	96	106	17	74	12	4	5	697	7	5.04	4.29	1.18	0.98	12.5	10.6	1.54	.292	6.14	132	5.06	121	9.56	-15.3
18	John Burkett J. Burkett	12	1997	TEX	9	.571	30	.429	30	4.56	139	2	0	0	189.1	240	96	106	20	30	4	0	1	828	1	6.61	1.43	4.63	0.95	16.8	3.6	1.43	.346	5.04	96	3.55	77	11.41	22.3
19	Frank Castillo F. Castillo	12	1997	TOT	12	.500	34	.500	33	5.42	126	0	0	0	184.1	220	111	121	25	69	8	0	4	830	3	6.15	3.37	1.83	1.22	15.2	8.3	1.57	.324	5.91	116	4.75	105	10.74	-4.2
20	Alex Fernandez A. Fernandez	12	1997	FLA	17	.414	32	.586	32	3.59	183	5	1	0	220.2	193	88	93	25	69	4	0	2	904	9	7.46	2.81	2.65	1.02	20.2	7.6	1.19	.270	3.79	89	3.91	94	7.87	5.9
21	LaTroy Hawkins L. Hawkins	12	1997	MIN	6	.667	20	.333	20	5.84	58	0	0	0	103.1	134	67	71	19	47	4	0	0	478	6	5.05	4.09	1.23	1.65	12.1	9.8	1.75	.329	6.18	125	5.85	129	11.67	-15.2
22	Ken Hill K. Hill	12	1997	TOT	9	.571	31	.429	31	4.55	106	1	0	0	190.0	194	96	103	19	95	3	0	3	833	7	5.02	4.50	1.12	0.90	12.7	11.4	1.52	.287	4.88	97	4.83	105	9.19	-4.7
23	Chris Holt C. Holt	12	1997	HOU	8	.600	33	.400	32	3.52	95	0	0	0	209.2	211	82	98	17	61	8	0	4	883	1	4.08	2.62	1.56	0.73	10.8	6.9	1.30	.276	4.21	89	4.24	106	9.06	-7
24	Steve Karsay S. Karsay	12	1997	OAK	3	.800	24	.200	24	5.77	92	0	0	0	132.2	166	85	92	20	47	9	0	3	609	7	6.24	3.19	1.96	1.36	15.1	7.7	1.61	.331	6.24	129	4.94	110	11.26	-6.9
25	Dave Mlicki D. Mlicki	12	1997	NYM	8	.600	32	.400	32	4.00	157	1	1	0	193.2	194	86	89	21	76	5	0	7	838	5	7.30	3.53	2.07	0.98	18.7	9.1	1.39	.299	4.14	99	4.14	100	9.02	0