Bill Stemmyer

Born: 5/6/1865 in Cleveland, OH, USA

Died: 5/3/1945 in Cleveland, OH, USA

MLB Debut: 1885-10-03 | Final Game: 1888-06-15

Bats: R | Throws: R | Height: 6'2" | Weight: 190 lbs

Full name: William Stemmyer

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Biography

Bill Stemmyer was a professional baseball pitcher who played from 1885 to 1888, leaving a notable mark in the early years of Major League Baseball. Born in 1865, Stemmyer’s career unfolded during a transitional period in baseball, as the sport was beginning to evolve from the rough-and-tumble days of the 19th century into a more organized and structured game. Over the course of his career, Stemmyer compiled a record of 29-29, showcasing his ability to compete at the highest level despite the challenges of the era. With an earned run average (ERA) of 3.67 and a total of 295 strikeouts, Stemmyer demonstrated his prowess on the mound, contributing significantly to his teams' efforts. Although he recorded only one save, his overall performance indicated a solid grasp of pitching strategy and execution during a time when the role of the relief pitcher was just beginning to take shape. Stemmyer’s career, spanning just a few seasons, exemplified the spirit of the game during the late 1800s, as players navigated the complexities of competition and the emergence of new playing styles.

Career Pitching Statistics

W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
29	29	60	59	59	1	1	495.0	482	202	15	205	295	3.67	0

Career ERA 3.67 vs. league average 3.39 across their career seasons — 8.4% worse than league average.

Season-by-Season Pitching

Year	Team	Lg	W	L	G	GS	CG	SHO	SV	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
1885	BSN	NL	1	1	2	2	2	1	0	11.0	7	0	11	8	0.00	3.03 (+100%)	-384.4
1886	BSN	NL	22	18	41	41	41	0	0	348.7	300	117	144	239	3.02	3.37 (+10%)	-87.8
1887	BSN	NL	6	8	15	14	14	0	1	119.3	138	69	41	41	5.20	4.17 (-25%)	202.8
1888	CL3	AA	0	2	2	2	2	0	0	16.0	37	16	9	7	9.00	2.95 (-206%)	-256.2

Career Batting Statistics

G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
61	212	32	60	5	4	1	32	3	16	27	0.283	0.339	0.358	0.698	106.7

Career AVG .283 vs. league average .250 across their career seasons — +13.1% above league average.

Career OBP .339 vs. league average .304 across their career seasons — +11.6% above league average.

Career SLG .358 vs. league average .338 across their career seasons — +6.0% above league average.

Career OPS 0.698 vs. league average 0.642 across their career seasons — +8.6% above league average.

Season-by-Season Batting

Year	Team	Lg	G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
1885	BSN	NL	2	7	1	3	1	0	0	2	0	0	0	0.429	—	—	—	—	0.0
1886	BSN	NL	41	148	24	41	3	2	0	20	3	12	17	0.277	.246 (+12%)	.302 (+9%)	.331 (-2%)	.634 (+3%)	102.6
1887	BSN	NL	15	47	5	12	0	2	1	9	0	3	9	0.255	—	—	—	—	4.1
1888	CL3	AA	3	10	2	4	1	0	0	1	0	1	1	0.400	—	—	—	—	0.0