Men's singles
1898 U.S. National Championships
Champion	Malcolm D. Whitman
Runner-up	Robert Wrenn
Score	w/o

Malcolm Whitman defeated Dwight F. Davis in the All Comers final, 3–6, 6–2, 6–2, 6–1 to win the men's singles tennis title at the 1898 U.S. National Championships. Two-time reigning champion Robert Wrenn did not defend his title.

Draw

Challenge round

	Challenge round
	R Wrenn
	MD Whitman		w/o

Finals

	Semifinals									Final
	WS Bond		13	4	3
	D Davis		11	6	6
										D Davis		6	2	2	1
										MD Whitman		3	6	6	6
	LE Ware		2	0	2
	MD Whitman		6	6	6

Earlier rounds

Section 1

	First round									Second round									Third round									Quarterfinals
										BS Harris		0	2	0
										WS Bond		6	6	6
																			WS Bond		6	6	6
																			J Forbes		1	3	1
										RD Little		2	2	2
										J Forbes		6	6	6
																												WS Bond		6	6	6
																												H Ward		3	3	4
										WS Clough
	H Ward		6	2	4					H Ward		w/o
	G Sheldon		3	6	6	r													H Ward		6	6	3	6
	RH Carleton		6	6	6														H Hackett		2	3	6	0
	C Whitbeck		1	4	1					RH Carleton		4	2	2
	H Hackett		6	7	8					H Hackett		6	6	6
	R Hooker		2	5	6

Section 2

	First round									Second round									Third round									Quarterfinals
	H Avery		w/o
	GS Keyes									H Avery		3	4	6	6	4
	S Ware		w/o							S Ware		6	6	1	3	6
	H Foulke																		S Ware		1	3	1
	G Belden		6	6	6														R Stevens		6	6	6
	ER Marvin		2	2	3					G Belden		4	0	6	4
	R Stevens		6	6	2	6				R Stevens		6	6	4	6
	GH Miles		0	4	6	2																						R Stevens		6	4	5
	JC Davidson		6	6	6																							D Davis		8	6	7
	SA Cushman		3	1	3					JC Davidson		6	1	3	4
	D Davis		6	8	6					D Davis		4	6	6	6
	H Plummer		2	6	0														D Davis		6	6	6	6
	A Codman		5	6	7	6													A Codman		8	4	2	2
	T Gross		7	3	5	3				A Codman		6	7	6
	EA Freshman		w/o							EA Freshman		2	5	0
	D Miller

Section 3

	First round									Second round									Third round									Quarterfinals
	L Fitzgerald		w/o
	LJ Grant									L Fitzgerald
	LE Ware		6	6	6					LE Ware		w/o
	EP Fischer		2	3	1														LE Ware		6	6	6
	W Clothier		6	6	6														S Millett		3	0	1
	E Stille		4	3	4					W Clothier		6	7	2	1	0
	S Millett		4	6	6	6				S Millett		2	5	6	6	6
	H Cole		6	4	0	4																						LE Ware		6	6	6
	GW Lee		5	5	6																							GW Lee		2	3	4
	WKAuchincloss		2	2	4					GW Lee		6	6	6
	J Bramhall		6	6	6					J Bramhall		2	1	1
	CO Wheeler		1	3	2														GW Lee		9	7	3	7	6
	HL Ewer		6	6	6														HL Ewer		7	9	6	5	1
	LH Cook		2	2	4					HL Ewer		7	4	6	6
	JK Willing		w/o							JK Willing		5	6	4	3
	WC Grant

Section 4

	First round									Second round									Third round									Quarterfinals
	MD Whitman		6	6	6
	JF Brice		1	0	0					MD Whitman		6	6	6
	WD Brownell		6	6	2	6				WD Brownell		0	2	2
	D Emery		4	3	6	0													MD Whitman		6	6	6
																			GL Wrenn		2	1	1
										GL Wrenn		8	6	6
										J Talmage		6	1	3
																												MD Whitman		11	4	6	8
																												CR Budlong		9	6	2	6
										B Wright		4	3	4
										CR Budlong		6	6	6
																			CR Budlong		5	3	5	6	6
																			J Parmly Paret		1	6	7	3	4
										J Parmly Paret		9	6	6
										R McKittrick		7	4	3

References

• Albiero, Alessandro; Carta, Andrea (2010). The Grand Slam Record Book Vol. 1. Monte Porzio Catone: Effepi Libri. p. 581. ISBN 978-88-6002-017-8.