Before 1900, Fred Dunlap had the highest wRC+ in a season, with 215 wRC+ in 1884.

Interpreted as:

most single season wrc+ with a minimum of 3.1 PA per team game by a player before 1900

	NAME	WRC+	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	PA	TB	XBH	SH	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	BRAA
1	Fred Dunlap F. Dunlap	215	1884	SLU	101	449	160	185	39	8	13		29				478	279	60		.412		.621		143	73.6	.477	77.7
2	Ross Barnes R. Barnes	197	1876	CWS	66	322	126	138	21	14	1	59	20		8		342	190	36		.429		.590		105	53.2	.478	50.5
3	Tip O'Neill T. O'Neill	190	1887	STL	124	517	167	225	52	19	14	123	50	5	20	30	572	357	85		.435	.490	.691	1.180	191	96.4	.525	88.9
4	Pete Browning P. Browning	187	1882	LOU	69	288	67	109	17	3	5		26				314	147	25		.378		.510		80	36.1	.425	37.7
5	Dan Brouthers D. Brouthers	180	1886	DET	121	489	139	181	40	15	11	72	66		16	21	555	284	66		.370		.581		153	72.2	.469	68
6	John McGraw J. McGraw	178	1899	BAL	117	399	140	156	13	3	1	33	124	14	21	73	539	178	17	2	.391	.547	.446	.994	140	65.2	.494	61.2
7	Ed Delahanty E. Delahanty	177	1899	PHI	146	581	135	238	55	9	9	137	55	4	22	30	645	338	73	5	.410	.464	.582	1.046	164	74.8	.488	72.6
8	Ed Delahanty E. Delahanty	177	1895	PHI	116	480	149	194	49	10	11	106	86	6	31	46	578	296	70	6	.404	.500	.617	1.117	174	78.7	.510	76.8
9	Ed Delahanty E. Delahanty	177	1896	PHI	123	499	131	198	44	17	13	126	62	9	22	37	574	315	74	4	.397	.472	.631	1.103	161	73	.501	70.7
10	George Shafer G. Shafer	176	1884	SLU	106	467	130	168	40	10	2		30				497	234	52		.360		.501		122	49.4	.407	53.7
11	King Kelly K. Kelly	176	1886	CWS	118	451	155	175	32	11	4	79	83		33	53	534	241	47		.388		.534		150	71.7	.475	62.2
12	Roger Connor R. Connor	175	1885	NYG	110	455	102	169	23	15	1	65	51		8		506	225	39		.371		.495		125	54.3	.430	53.6
13	Cap Anson C. Anson	173	1881	CWS	84	343	67	137	21	7	1	82	26		4		369	175	29		.399		.510		91	40.8	.436	37.5
14	Dan Brouthers D. Brouthers	172	1885	BUF	98	407	87	146	32	11	7	59	34		10		441	221	50		.359		.543		110	48.6	.433	44.9
15	Dan Brouthers D. Brouthers	171	1882	BUF	84	351	71	129	23	11	6	63	21		7		372	192	40		.368		.547		95	42.4	.424	38.8
16	Deacon White D. White	170	1877	BOS	59	266	51	103	14	11	2	49	8		3		274	145	27		.387		.545		70	30.1	.429	29.1
17	Hugh Duffy H. Duffy	169	1894	BSN	125	539	160	237	51	16	18	145	66	1	15	48	616	374	85	10	.440	.502	.694	1.196	203	91.3	.526	80.7
18	George Hall G. Hall	165	1876	PHI	60	268	51	98	7	13	5	45	8		4		276	146	25		.366		.545		72	30.3	.419	27.3
19	Dave Orr D. Orr	165	1885	NYM	107	444	76	152	29	21	6	77	8	3			455	241	56		.342	.358	.543	.901	104	41	.407	43.3
20	George Gore G. Gore	164	1880	CWS	77	322	70	116	23	2	2	47	21		10		343	149	27		.360		.463		75	31.1	.391	28.8
21	Dan Brouthers D. Brouthers	164	1891	BSA	130	486	117	170	26	19	5	109	87	24	20	31	597	249	50		.350	.471	.512	.983	154	66.5	.471	60.2
22	Roger Connor R. Connor	164	1886	NYG	118	485	105	172	29	20	7	71	41		15	17	526	262	56		.355		.540		131	53.7	.433	52
23	Dan Brouthers D. Brouthers	164	1892	BKN	152	588	121	197	30	20	5	124	84	16	30	31	688	282	55		.335	.432	.480	.911	154	62.1	.437	61.3
24	Pete Browning P. Browning	164	1885	LOU	112	481	98	174	34	10	9	73	25	0			506	255	53		.362	.393	.530	.923	122	51.2	.421	47.4
25	John Reilly J. Reilly	164	1884	CNA	105	448	114	152	24	19	11	91	5	14			467	247	54		.339	.366	.551	.918	115	47	.408	44.5