1951 U.S. National Championships – Men's singles

The tournament used two lists of eight players for seeding the men's singles event; one for U.S. players and one for foreign players. Frank Sedgman is the champion; others show the round in which they were eliminated.^[2]

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• r = Retired

Final eight

	Quarterfinals									Semifinals									Final
	1	Dick Savitt	6	1	4	6	6
	15	J.E. Patty	3	6	6	1	4
										1	Dick Savitt	0	6	3	2
										13	Vic Seixas	6	3	6	6
	7	Herbie Flam	6	7	6	2	3
	13	Vic Seixas	1	9	2	6	6
																			13	Vic Seixas	4	1	1
																			2	Frank Sedgman	6	6	6
	3	Arthur Larsen	6	6	6	6
	11	Gardnar Mulloy	8	1	2	4
										3	Arthur Larsen	1	2	0
										2	Frank Sedgman	6	6	6
	5	Tony Trabert	6	2	5	6	3
	2	Frank Sedgman	3	6	7	3	6

Earlier rounds

Section 1

	First round									Second round									Third round									Fourth round
										1	Savitt	6	6	6
											Alloo	0	2	1
																			1	Savitt	7	6	6
																				Main	5	3	2
											Ink	4	2	6	2
											Main	6	6	3	6
																												1	Savitt	6	6	6
																													Clark	3	1	3
											Clark	8	6	7	6
											Hernandez	10	3	5	1
																				Clark	6	6	6
																			16	Levy	4	3	3
											Shields	1	3	1
										16	Levy	6	6	6

Section 2

	First round									Second round									Third round									Fourth round
										15	Patty	6	6	6
											Vincent	0	2	3
																			15	Patty	7	11	3	6
																				Hecht	5	9	6	4
											Seeler	5	3	8	5
											Hecht	7	6	6	7
																												15	Patty	1	6	6	7
		Grigry	6	6	6																							6	Rose	6	3	2	5
		Olmedo	0	4	1						Grigry	6	6	3	6	4
		Sorlien	1	6	7	8					Sorlien	3	3	6	8	6
		Welsh	6	4	5	6														Sorlien	2	2	4
		Fox	6	4	6	6													6	Rose	6	6	6
		Sisson	4	6	4	2					Fox	1	2	3
	6	Rose	6	6	6					6	Rose	6	6	6
		Neff	2	4	1

Section 3

	First round									Second round									Third round									Fourth round
	7	Flam	6	6	6
		Burrows	4	0	0					7	Flam	6	6	6
		Balbiers	6	6	6						Balbiers	0	3	2
		Ehmke	4	2	2														7	Flam	6	6	6
		Vogt	6	6	6															Vogt	3	4	4
		Backe	4	4	2						Vogt	13	6	6
		Heldman	6	6	3	6					Heldman	11	4	3
		Long	3	3	6	1																						7	Flam	4	6	6	7
		Schwartz	6	6	6																								Moylan	6	2	2	5
		Gaines	2	4	0						Schwartz	8	4	6	1	4
		Catton	6	6	7						Catton	6	6	3	6	6
		Masterson	0	4	5															Catton	1	3	2
		Moylan	6	6	8															Moylan	6	6	6
		Young	2	3	6						Moylan	3	2	6	7	6
	10	Rémy	3	6	6	3	6			10	Rémy	6	6	2	5	3
		De Witts	6	3	4	6	1

Section 4

	First round									Second round									Third round									Fourth round
	13	Seixas	4	6	4	6	6
		Bartzen	6	0	6	0	3			13	Seixas	6	5	6	6
		Devoe	6	6	6						Devoe	3	7	2	4
		Johnson	2	3	4														13	Seixas	8	6	6
		Deodhar	0	6	6	8														Fisher	6	4	2
		Kerdasha	6	3	1	6					Deodhar	1	0	0
		Fisher	6	6	6						Fisher	6	6	6
		Cleveland	1	1	4																							13	Seixas	4	7	7	6
		Morales	3	6	6	3	6																					4	McGregor	6	5	5	4
		Hayes	6	3	2	6	1				Morales	6	7	7	3	1
		Eisenberg	8	6	6						Eisenberg	4	9	5	6	6
		Hajjar	6	2	1															Eisenberg	3	6	1
		Hagist	1	8	6	6													4	McGregor	6	8	6
		Fujikura	6	6	4	2					Hagist	6	2	2	6
	4	McGregor	6	6	6					4	McGregor	3	6	6	8
		Martin	2	2	4

Section 5

	First round									Second round									Third round									Fourth round
	3	Larsen	6	6	6
		Lewyn	1	2	1					3	Larsen	6	6	6
		Anthony	4	6	6	6					Anthony	2	0	4
		Reed	6	0	2	3													3	Larsen	6	6	6
		Golden	6	6	6															Golden	2	3	4
		Wood	2	0	3						Golden	6	6	6
		Macken	6	7	6						Macken	3	3	3
		Fine	2	5	3																							3	Larsen	6	3	6	3	7
		Richardson	6	6	6																								Richardson	4	6	1	6	5
		Reed	2	3	1						Richardson	5	7	6	3	10
		Huebner	6	9	6						Huebner	7	5	4	6	8
		Hobbs	3	7	2															Richardson	2	7	6	6
		Willner	4	6	6	6														Tuero	6	5	3	2
		Freedman	6	3	3	1					Willner	6	1	2	5
		Tuero	8	6	6	11					Tuero	4	6	6	7
	14	Kumamaru	6	8	4	9

Section 6

	First round									Second round									Third round									Fourth round
	11	Mulloy	6	6	8
		Tully	4	1	6					11	Mulloy	6	6	6
		Bassford	6	6	6						Bassford	3	2	2
		Slobin	2	1	4														11	Mulloy	6	6	6
		Cain																		Van Rensselaer	4	1	3
		Herren	w/o								Cain	w/o
		Van Rensselaer	6	6	6						Van Rensselaer
		Hetzeck	1	2	3																							11	Mulloy	4	6	6	6
		Cochell	6	6	6																								Cochell	6	2	1	2
		Molinari	3	2	1						Cochell	6	6	3	6
		Buse	7	6	6						Buse	4	4	6	4
		Rogers	5	3	3															Cochell	3	6	6	8
		Rumbough	3	6	6	6													8	Mottram	6	3	3	6
		Bishop	6	3	4	4					Rumbough	4	3	4
	8	Mottram	6	6	6	6				8	Mottram	6	6	6
		Steele Jr.	1	8	2	3

Section 7

	First round									Second round									Third round									Fourth round
	5	Trabert	6	6	6
		Clothier	2	0	0					5	Trabert	6	6	6
		Mateer	6	7	14						Mateer	2	2	0
		Squires	4	5	12														5	Trabert	6	6	7
		Geller	6	6	6															Geller	3	4	5
		Schreiber	2	2	2						Geller	9	7	5	6
											Kerr	7	5	7	4
																												5	Trabert	6	6	6	6
																													Rochon	3	8	1	1
											Olmedo	0	0	1
											Rochon	6	6	6
																				Rochon	8	8	6	4	7
																			12	Candy	6	10	4	6	5
											Ganzenmuller	0	2	2
										12	Candy	6	6	6

Section 8

	First round									Second round									Third round									Fourth round
										9	Talbert	6	6	6
											Paton	0	0	2
																			9	Talbert	6	6	6
																				Nakano	2	1	1
											Nakano	6	0	5	6	6
											Buse	4	6	7	4	2
																												9	Talbert	1	1	5
																												2	Sedgman	6	6	7
											Ball	1	8	6	9
											Boys	6	6	0	7
																				Ball	4	0	2
																			2	Sedgman	6	6	6
											Bogley	0	4	2
										2	Sedgman	6	6	6