Mario Mendoza has the lowest wRC+ with 400+ plate appearances in a season, with 20 wRC+ in 1979.

Interpreted as:

lowest wrc+ by a player in a season, min 400 pa

	NAME	WRC+	PA	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	BRAA
1	Mario Mendoza M. Mendoza	20	401	1979	SEA	148	373	26	74	10	3	1	29	9	1	62	3	0	93	14	13	5	0	12	.198	.216	.249	.466	11	-36.3	.210	-39.4
2	Jim Levey J. Levey	23	567	1933	SLA	141	529	43	103	10	4	2	36	26	3	68	4	6	127	16	9				.195	.237	.240	.477	21	-44.5	.227	-58.3
3	Rob Picciolo R. Picciolo	28	446	1977	OAK	148	419	35	84	12	3	2	22	9	1	55	1	4	108	17	14	3	0	8	.200	.218	.258	.475	13	-39.4	.213	-38.2
4	Billy Hunter B. Hunter	29	604	1953	SLA	154	567	50	124	18	1	1	37	24	2	45	3	1	147	20	11			12	.219	.253	.259	.512	25	-46.9	.239	-53.1
5	Jim Lillie J. Lillie	31	427	1886	KCC	114	416	37	73	9	0	0	22	11		80	13		82	9					.175		.197		25	-37.5	.190	-45.1
6	Larry Bowa L. Bowa	31	476	1973	PHI	122	446	42	94	11	3	0	23	24	1	31	10	6	111	14	4	1	8	5	.211	.252	.249	.501	19	-33.7	.225	-37.6
7	Skeeter Newsome S. Newsome	32	508	1936	PHA	127	471	41	106	15	2	0	46	25	1	27	13	4	125	17	11				.225	.266	.265	.531	26	-40.9	.253	-52.5
8	Cristian Guzman C. Guzman	34	456	1999	MIN	131	420	47	95	12	3	1	26	22	3	90	9	7	116	16	7	4	0	5	.226	.267	.276	.543	23	-36.8	.247	-40.2
9	Leo Durocher L. Durocher	34	520	1937	SLN	135	477	46	97	11	3	1	47	38	0	36	6		117	15	5			17	.203	.262	.245	.507	23	-41.9	.244	-42.3
10	Barry Foote B. Foote	35	410	1975	MON	118	387	25	75	16	1	7	30	17	1	48	0	1	114	24	4	1	6	9	.194	.229	.295	.524	18	-26.7	.234	-30.6
11	Alex Gonzalez A. Gonzalez	35	407	2000	FLA	109	385	35	77	17	4	7	42	13	2	77	7	1	123	28	5	2	0	7	.200	.229	.319	.548	17	-36.2	.239	-36
12	Art Scharein A. Scharein	35	522	1933	SLA	123	471	49	96	13	3	0	26	41	1	21	7	9	115	16	9				.204	.269	.244	.513	28	-32.4	.249	-45
13	Bobby Mattick B. Mattick	36	464	1940	CHC	128	441	30	96	15	0	0	33	19	0	33	5		111	15	4			8	.218	.250	.252	.502	19	-36.5	.235	-36.2
14	Germany Smith G. Smith	36	453	1897	BKN	112	428	47	86	17	3	0	29	14	4	23	1		109	20	7				.201	.233	.255	.488	22	-46.5	.235	-45.5
15	Jackie Bradley Jr. J. Bradley Jr.	36	428	2021	MIL	134	387	39	63	14	3	6	29	28	10	132	7	1	101	23	0	3	0	8	.163	.236	.261	.497	20	-32	.224	-34.7
16	Ted Kazanski T. Kazanski	37	406	1956	PHI	117	379	35	80	11	1	4	34	20	1	41	0	2	105	16	3	3	6	8	.211	.251	.277	.528	18	-29.5	.234	-30.7
17	Skeeter Webb S. Webb	37	449	1945	DET	118	407	43	81	12	2	0	21	30	0	35	8	7	97	14	12			9	.199	.254	.238	.492	20	-28.4	.242	-31.2
18	Doug Flynn D. Flynn	37	485	1982	TOT	146	463	26	104	12	4	0	39	8	0	37	6	4	124	16	10	4	0	9	.225	.236	.268	.504	20	-34.7	.226	-35.5
19	Alfredo Griffin A. Griffin	37	502	1990	LAD	141	461	38	97	11	3	1	35	29	2	65	6	3	117	15	6	4	11	5	.210	.258	.254	.512	21	-35.5	.227	-36.7
20	Bob Lillis B. Lillis	38	496	1963	HOU	147	469	31	93	13	1	1	19	15	4	35	3	4	111	15	7	1	1	8	.198	.229	.237	.466	18	-34.2	.211	-33.7
21	Pee-Wee Wanninger P. Wanninger	38	427	1925	NYY	117	403	35	95	13	6	1	23	11	0	34	3	5	123	20	13				.236	.256	.305	.561	22	-34.1	.259	-37.4
22	Clint Barmes C. Barmes	38	535	2006	COL	131	478	57	105	26	4	7	56	22	9	72	5	4	160	37	19	7	6	2	.220	.264	.335	.598	33	-34.3	.256	-43.2
23	Hal Lanier H. Lanier	38	518	1968	SFG	151	486	37	100	14	1	0	27	12	0	57	2	2	116	15	14	6	0	17	.206	.222	.239	.461	19	-28.9	.210	-31.5
24	Bobby Wine B. Wine	39	403	1969	MON	121	370	23	74	8	1	3	25	28	0	49	0	0	93	12	5	0	6	11	.200	.256	.251	.508	19	-24.4	.232	-28.2
25	Jiggs Parrott J. Parrott	39	553	1894	CHI	126	525	82	130	17	9	3	65	16	3	35	30		174	29	9				.248	.274	.331	.605	45	-55.3	.280	-63.8