MLB / Players

Win Mercer

HandednessBats Left · Throws Right

Listed at5 ft 9 in · 154 lb

BornJune 20, 1874 · Chester, WV, USA

MLB debutApril 21, 1894

Final gameSeptember 27, 1902

Seasons9 (1894–1902)

Washington Senators 1894–1899; New York Giants 1900; Washington Senators 1901; Detroit Tigers 1902

Percentile snapshot

1902 season — qualified pitchers

66.2

73.2

53.5

11.3

70.4

63.4

SHO

81.7

282

26.8

32.4

23.9

15.5

29.6

281.7

71.8

ERA

3.04

43.7

WHIP

1.285

43.7

K/9

1.28

1.4

FIP

3.71

19.7

FIP-

102.3

40.8

ERA+

119.5

70.4

sWAR

4.4

73.2

of 72 qualified 1902 pitchers (min 137 IP)

Career, era-adjusted

ERA+

106.4

62.6

sWAR

34.5

97.2

ERA+ measured against qualified careers (1,000+ IP), 1,334 of them; sWAR measured against every career in history, 24,011 of them. Only era-adjusted career stats carry a percentile — a raw career total gets a rank instead, because pooling the 1890s with the 2020s is a choice, not a measurement.

Season by season

Batting

Season	G	PA	AB	R	H	2B	3B	HR	RBI	BB	SO	SB	BA	OBP	SLG	OPS	wRC+	OPS+	wOBA	sWAR
1894	53	175	165	29	48	5	2	2	29	9	20	9	.291	.328	.382	.709	73.7	70.3	.329	7.5
1895	64	221	201	26	51	9	1	1	26	12	33	7	.254	.306	.323	.629	68.3	62.1	.302	4.1
1896	49	171	156	23	38	1	1	1	14	9	18	9	.244	.302	.282	.584	62.1	54.3	.286	4.5
1897	50	151	139	23	44	2	5	0	19	6	13	7	.317	.354	.403	.757	97.7	99.3	.358	7.6
1898	80	277	249	38	80	3	5	2	25	18	31	14	.321	.369	.398	.767	116.2	119.3	.372	1.0
1899	108	417	375	73	112	6	7	1	35	32	17	16	.299	.360	.360	.720	98.8	97.5	.350	1.8
1900	76	279	248	32	73	4	0	0	27	26	26	15	.294	.366	.310	.676	93.0	87.5	.335	2.7
1901	51	167	140	26	42	7	2	0	16	23	13	10	.300	.402	.379	.781	118.8	116.2	.378	1.1
1902	35	109	100	8	18	2	0	0	6	6	7	1	.180	.226	.200	.426	21.8	17.8	.209	4.4

Pitching

Season	G	GS	W	L	SV	CG	SHO	H	ER	BB	SO	HR	IP	ERA	WHIP	K/9	FIP	FIP-	ERA+	sWAR
1894	50	39	17	23	3	30	0	445	145	126	72	9	339.3	3.85	1.683	1.91	4.97	93.3	138.5	7.5
1895	44	38	13	23	2	32	0	432	154	96	85	17	313.3	4.42	1.685	2.44	4.83	101.3	107.9	4.1
1896	46	45	25	18	0	38	2	456	168	117	94	10	366.3	4.13	1.564	2.31	4.26	97.6	105.6	4.5
1897	47	43	21	20	3	35	3	403	121	104	91	5	342.0	3.18	1.482	2.39	4.14	96.1	135.1	7.6
1898	33	30	12	18	0	24	0	309	125	71	52	3	233.7	4.81	1.626	2.00	3.63	100.8	74.8	1.0
1899	23	21	7	14	0	21	0	234	95	53	28	2	186.0	4.60	1.543	1.35	3.73	96.9	83.7	1.8
1900	33	29	13	17	0	26	1	303	104	58	39	5	242.7	3.86	1.488	1.45	3.74	101.2	95.8	2.7
1901	24	22	9	13	1	19	1	217	91	50	31	8	179.7	4.56	1.486	1.55	4.15	112.2	81.2	1.1
1902	35	33	15	18	1	28	4	282	95	80	40	5	281.7	3.04	1.285	1.28	3.71	102.3	119.5	4.4

sWAR is the season TOTAL for a player who both hit and pitched: the record book carries one figure per season, not a split, so the same number appears on both lines rather than being counted twice.

Career totals

Batting

566

1,967

1,773

278

506

RBI

197

141

178

.2854

OBP

.3439

SLG

.3452

OPS

.6891

Pitching

G (P)

335

300

354th-most career GS

132

360th-most career W

164

110th-most career L

253

76th-most career CG

SHO

2,485

262nd-most career IP

SO (P)

532

BB allowed

755

304th-most career BB allowed

ERA

3.977

WHIP

1.5439

K/9

1.93

A total is called out only where it ranks in the all-time top 500; hover a figure for its rank and the size of the field it was ranked in. Ranks are absolute facts and carry no percentile — the population for "career home runs" would be an editorial choice, and the rank is not.

Best games

Batting

Date	Game	AB	R	H	2B	3B	RBI	BB	TB
1901-04-27	MIN @ ATH Gameday	5	3	4	2	0	1	0	6
1901-09-23	CLE @ MIN Gameday	4	1	2	1	1	1	0	5
1901-09-21	CLE @ MIN Gameday	6	2	4	0	0	3	0	4
1901-08-19	CWS @ MIN Gameday	2	0	1	0	1	1	1	3
1901-09-03	MIN @ DET Gameday	4	0	2	0	0	2	1	2

Pitching

Date	Game	IP	H	R	ER	BB	SO	HR
1901-08-10	ATH @ MIN Gameday	9.0	8	4	3	2	6	2
1901-08-26	CLE @ MIN Gameday	9.0	6	1	1	2	5	0
1902-05-03	CLE @ DET Gameday	9.0	8	3	2	2	3	0
1902-07-05	BAL @ DET Gameday	9.0	6	1	1	1	3	0
1901-08-31	MIN @ CLE Gameday	8.0	19	16	10	4	3	0

Ranked from our own play-by-play game log, which begins in 1901 — not from the record book, so a career played outside it shows nothing here rather than a short list.