Singles
1886 U.S. National Championships
Final
Champion	Richard Sears
Runner-up	Robert Livingston Beeckman
Score	4–6, 6–1, 6–3, 6–4
Details
Draw	32
Events
Singles Doubles
← 1885 · U.S. National Championships · 1887 →

Five-time defending champion Richard Sears defeated Robert Livingston Beeckman in the challenge round, 4–6, 6–1, 6–3, 6–4 to win the men's singles tennis title at the 1886 U.S. National Championships. For the first time, all matches were played as best of five sets.

	Challenge round
	Richard Sears		4	6	6	6
	Robert L Beeckman		6	1	3	4

	Semifinals									Finals
	Joseph Clark		5	2	3
	Howard Taylor		6	6	6
										Howard Taylor		6	3	4	2
										Robert L Beeckman		2	6	6	6
	Robert L Beeckman		6	6	6
	Charles A Chase		4	0	2

	First round									Second round									Third round									Quarterfinals
										GM Brinley		6	3	6	6
	P Presbry		6	6	6					P Presbry		2	6	2	4
	R Gamble		3	1	5														GM Brinley		0	4	3
																			J Clark		6	6	6
										J Clark		6	6	6
										Edgar		0	1	1
																												J Clark		1	6	6	6
																												H Slocum		6	5	5	2
										H Slocum		4	6	6	6
										O Campbell		6	1	3	1
																			H Slocum		6	4	6	4
																			PS Sears		2	6	2	6
										PS Sears		5	4	6	6	6
										WR Weeden		6	6	1	0	3

	First round									Second round									Third round									Quarterfinals
										H Taylor		0	3	6	6	13
										J Dwight		6	6	1	2	11
																			H Taylor		6	6	6
																			W Berry		0	0	1
																												H Taylor		6	6	6
																												QA Shaw		3	5	5
																			QA Shaw		6	6	4	6
																			GA Smith		0	1	6	1
										MS Paton		1	1	0
	GA Smith		2	6	6	6				GA Smith		6	6	6
	WH Barnes		6	3	4	4

	First round									Second round									Third round									Quarterfinals
										E.A. Manice		0	0	1
										RL Beeckman		6	6	6
																			RL Beeckman		6	6	6
																			HM Sears		2	0	0
										Miller		6	3	3	6	6
										HM Sears		2	6	6	5	7
																												RL Beeckman		6	3	6	6
																												FS Mansfield		4	6	0	3
										C Nightingale		1	0	0
										FS Mansfield		6	6	6
																			FS Mansfield		6	6	6
																			M Fielding		4	1	3
										W Lewis		2	2	3
										M Fielding		6	6	6

	First round									Second round									Third round									Quarterfinals
										SH Hooper		0	3	0
										CA Chase		6	6	6
																			CA Chase		6	6	6
																			Robbins		5	3	2
										A Rives
										Robbins		w/	o
																												CA Chase		6	6	6
																												M Post		0	2	4
										D'Invilliers
										M Post		w/	o
																			M Post		6	6	3	2	6
																			F Warren		2	4	6	6	2
										F Warren		7	2	6	6	6
										FW Taylor		9	6	3	0	4

• Albiero, Alessandro; Carta, Andrea (2010). The Grand Slam Record Book Vol. 1. Monte Porzio Catone: Effepi Libri. p. 571. ISBN 978-88-6002-017-8.