1917 U.S. National Championships – Men's singles

Robert Lindley Murray defeated Nathaniel W. Niles 5–7, 8–6, 6–3, 6–3 in the final to win the men's singles tennis title at the 1917 U.S. National Championships.^[2] The event was held at the West Side Tennis Club in Forest Hills, New York.^[3][4] The tournament was renamed National Patriotic Tournament in support of the war effort. No trophies were handed out to the winners and the entrance fees were dedicated to the American Red Cross.^[5]

Men's singles
1917 U.S. National Championships
Champion	Robert Lindley Murray[1]
Runner-up	Nathaniel W. Niles[1]
Score	5–7, 8–6, 6–3, 6–3

Final eight

	Quarterfinals									Semifinals									Final
		R. Lindley Murray	4	6	6	4	6
		Craig Biddle	6	1	4	6	2
											R. Lindley Murray	4	6	6	6
											John Strachan	6	3	3	1
		John Strachan	6	2	6	6
		Chuck Garland	1	6	2	3
																				R. Lindley Murray	5	8	6	6
																				Nathaniel W. Niles	7	6	3	3
		Nathaniel W. Niles	6	6	6
		Clarence Griffin	1	3	0
											Nathaniel W. Niles	6	4	6	6
											R. Norris Williams	2	6	4	3
		Harold Throckmorton[6]	1	6	4	6	3
		R. Norris Williams	6	4	6	0	6

Earlier rounds

Section 1

	First round									Second round									Third round									Quarterfinals
	Fixman		w/	o
	Murray									Murray		6	6
	Emerson		2	1						Westfall		2	2
	Westfall		6	6															Murray		3	6	6	6
	Pell		6	6															Tilden		6	4	3	3
	Rosenbaum		3	3						Pell		3	3
	Otto Salm		0	1						Tilden		6	6
	Tilden		6	6																								Murray		4	6	6	4	6
	Mathey																											Biddle		6	1	4	6	2
	Burrows		w/	o						Mathey		6	6
	Walker		6	6						Walker		3	1
	Seymour		2	0															Mathey		4	14	3	3
	Alexander		6	6															Biddle		6	12	6	6
	Bassford		1	0						Alexander		1	6	0
	Biddle									Biddle		6	4	6
	Major		w/	o

Section 2

	First round									Second round									Third round									Quarterfinals
	Strachan
	Letson		w/	o						Strachan		6	6
	Bowman		w/	o						Binzen		1	1
	Binzen																		Strachan		6	2	6	6
	MacPherson																		MacPherson		1	6	0	3
	Harris		w/	o						MacPherson		6	6
	Wagner		6	6						Wagner		1	4
	Berk		3	0																								Strachan		6	2	6	6
	Watters		7	6																								Garland		1	6	2	3
	Allen		5	4						Watters		6	6
	Kashio		7	7	10					Kashio		3	4
	Brown Ransom		9	5	8														Watters		4	1	3
	Garland		6	7															Garland		6	6	6
	Mahan		1	5						Garland		6	6
	Dionne		4	6	0					Behr		2	4
	Behr		6	2	6

Section 3

	First round									Second round									Third round									Quarterfinals
	Voshell		4	6'	3
	Ward		6	1	6					Ward		6	6
	Inman		1	3						Parker		2	2
	Parker		6	6															Ward		6	3	1	2
	Niles		6	6															Niles		3	6	6	6
	Allen		4	2						Niles		6	6
	Chambers									Chambers		4	1
	Adoue		w/	o																								Niles		6	6	6
	Armstrong		w/	o																								Griffin		1	3	0
	Beck									Beck		6	6
	Vail		6	9						Vail		1	3
	Vilsack		3	7															Beck		2	6	2
	Griffin		6	6															Griffin		6	8	6
	MacMullen		2	3						Griffin		6	6
	VanDeventer									VanDeventer		2	2
	Mack		w/	o

Section 4

	First round									Second round									Third round									Quarterfinals
	Throckmorton		6	6
	Johnson		4	4						Throckmorton		7	6
	Baggs									Baggs		5	3
	O Neale		w/	o															Throckmorton		4	6	6	6
	Washburn		6	6															Washburn		6	2	4	4
	Dickinson		3	3						Washburn		6	6
	Tilden		w/	o						McClave		0	2
	McClave																											Throckmorton		1	6	4	6	3
	Whitman		w/	o																								Williams		6	4	6	0	6
	Wright									Wright		7	10	2
	VanDeventer		2	4						Beekman		5	12	6
	Beekman		6	6															Beekman		8	4	7	3
	Williams		6	6															Williams		6	6	9	6
	Pate		2	2						Williams		6	6
	French		3	6	6					French		3	2
	James		6	3	1