Men's singles
1889 U.S. National Championships
Final
Champion	Henry Slocum[1]
Runner-up	Quincy Shaw[1]
Score	6–3, 6–1, 4–6, 6–2
Events
Singles men women Doubles men women
← 1888 · U.S. National Championships · 1890 →

Defending championHenry Slocum defeatedQuincy Shaw in the Challenge Round, 6–3, 6–1, 4–6, 6–2 to win the men's singles tennis title at the 1887 U.S. National Championships. Shaw defeatedOliver Campbell in the All Comers' Final, 1–6, 6–4, 6–3, 6–4. The event was held at theNewport Casino,Newport, R.I. from August 21 to August 28.^[1]

	Challenge round
	Henry Slocum		6	6	4	6
	Quincy A Shaw		3	1	6	2

	Semifinals									Finals
	Quincy A Shaw		4	6	6	6
	Percy Knapp		6	1	4	4
										Quincy A Shaw		1	6	6	6
										Oliver Campbell		6	4	3	4
	Ernest Meers		7	1	7	4	2
	Oliver Campbell		5	6	5	6	6

	First round									Second round									Quarterfinals									Semifinals
	CA Chase		6	6	6
	FOS Reade		0	3	1					CA Chase		6	6	6
	RB Hale		6	6	6					RB Hale		4	0	3
	A Rives		2	2	1														CA Chase		4	4	6	3
	RV Beach		6	6	8														QA Shaw		6	6	4	6
	FW Taylor		2	2	6					RV Beach		9	4	0	2
	QA Shaw		7	7	6	6				QA Shaw		7	6	6	6
	A Empie Wright		9	5	3	4																						QA Shaw		4	6	6	6
	J Ryerson		6	5	6	7																						P Knapp		6	1	4	4
	AL Williston		0	7	0	5				J Ryerson		5	6	2
	P Knapp		6	8	4	6				P Knapp		7	8	6
	M Fielding		2	6	6	2													P Knapp		6	6	6
	D Miller		6	8	6														D Miller		4	3	2
	RC Sands		4	6	1					D Miller		6	6	6
	GR Fearing		6	6	6					GR Fearing		2	2	3
	WW Reece		3	2	4

	First round									Second round									Quarterfinals									Semifinals
	FLV Hoppin		6	6	6
	SC Fox		3	0	1					FLV Hoppin		5	0	1
	FS Mansfield		9	6	6					FS Mansfield		7	6	6
	TS Tailer		7	0	1														FS Mansfield		1	2	2
	MR Wright		6	6	6														E Meers		6	6	6
	EW Gould		3	0	2					MR Wright		5	3	4
	E Meers		6	6	6					E Meers		7	6	6
	CE Sands		4	3	4																							E Meers		7	1	7	4	2
	ST Chase		8	6	2	6																						O Campbell		5	6	5	6	6
	GA Hurd		6	4	6	4				ST Chase		6	1	6	4	5
	J Clark		6	7	6					J Clark		2	6	0	6	7
	WR Weeden		3	5	4														J Clark		12	5	3	3
	H Taylor		6	6	6														O Campbell		10	7	6	6
	R Huntington		3	3	0					H Taylor		4	2	5
	O Campbell		6	6	6					O Campbell		6	6	7
	EV Thompson		4	1	2

• Albiero, Alessandro; Carta, Andrea (2010).The Grand Slam Record Book Vol. 1. Monte Porzio Catone: Effepi Libri. p. 573.ISBN 978-88-6002-017-8.

• 1889 U.S. National Championships (tennis)
• U.S. National Championships (tennis) by year – Men's singles

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