Men's singles
1921 U.S. National Championships
Final
Champion	Bill Tilden[1]
Runner-up	Wallace Johnson[1]
Score	6–1, 6–3, 6–1
Details
Draw	108
Seeds	N.A.
Events
Singles men women Doubles men women
← 1920 · U.S. National Championships · 1922 →

Defending championBill Tilden defeatedWallace Johnson in the final, 6–1, 6–3, 6–1, to win the men's singles tennis title at the 1921 U.S. National Championships.^[2] It was Tilden's secondU.S. Championships singles title and fourthmajor singles title overall. Tilden became the first male tennis player to win four consecutive major singles events.

The tournament began on September 9, weeks after the conclusion of the correspondingWomen's singles event, and ended on September 19. For the first time, the men's tournament was held at the Germantown Cricket Club in Philadelphia instead of at Forest Hills.^[3]

Key

	Quarterfinals									Semifinals									Finals
	Craig Biddle		0	3	4
	Wallace Johnson		6	6	6
										Wallace Johnson		6	3	8	6
										James Anderson		4	6	6	3
	Frank Hunter		1	3	4
	James Anderson		6	6	6
																			Wallace Johnson		1	3	1
																			Bill Tilden		6	6	6
	Gordon Lowe		4	3	4
	Bill Tilden		6	6	6
										Bill Tilden		10	6	6
										Willis Davis		8	2	1
	Willis Davis		6	4	6	1	6
	Robert Kinsey		3	6	4	6	4

	First round									Second round									Third round									Fourth round
										Parker		6	6	6
										Robinson		4	4	2
																			Parker		6	4	1	3
																			Biddle		4	6	6	6
										Biddle		6	6	6
										Gilmore		2	1	1
																												Biddle		6	3	6	6
																												Hammett		1	6	4	1
										Crawford		10	6	6
										Pannock		8	3	4
																			Crawford		3	6	2	4
																			Hammett		6	3	6	6
										Hammett		6	6	6
										Golden		4	2	2

	First round									Second round									Third round									Fourth round
										Knight		6	6	6
										Hathaway		4	2	1
																			Knight		2	3	8
	Kinsey		6	6	6														Kinsey		6	6	10
	Putnam		1	3	4					Kinsey		6	6	6
	Oelsner		4	6	9	6				Oelsner		2	4	4
	Stockton		6	4	7	0																						Kinsey		6	6	2	1
	Edwards		6	7	5	6	6																					Johnson		4	8	6	6
	Vanneman		3	9	7	3	1			Edwards		4	6	6	4	6
	Myers		2	6	6	3	8			Myers		6	4	4	6	4
	Gibbons		6	0	1	6	7r												Edwards		0	1	2
	Washburn		6	6	6														Johnson		6	6	6
	Thayer		0	2	2					Washburn		3	7	6	3	3
	Johnson		6	6	6					Johnson		6	5	2	6	6
	Mercur		1	3	4

	First round									Second round									Third round									Fourth round
	Dionne		7	7	10
	Evans		5	5	8					Dionne		3	1	1
	Fischer									Fischer		6	6	6
	Kashio		w/	o															Fischer		6	6	4	3	0
	Hunter		6	5	6	3	6												Hunter		4	1	6	6	6
	Anderson		3	7	3	6	3			Hunter		6	6	6
	Bernstein									Bernstein		2	3	3
	Larned		w/	o																								Hunter		6	6	6
	Baggs																											Anderson		3	3	1
	Garland		w/	o						Baggs		1	2	0
	King		6	6	6					King		6	6	6
	Ewing		3	1	4														King		2	3	10
	Jones		6	6	6														Anderson		6	6	12
	Sweet		0	1	1					Jones		2	2	1
	Anderson		6	6	6					Anderson		6	6	6
	Baggs		2	2	1

	First round									Second round									Third round									Fourth round
	Adoue		6	6	8
	Wood		1	3	6					Adoue		6	2	6	6
	Voshell									Voshell		2	6	4	4
	Kumagae		w/	o															Adoue		5	3	3
	Ingraham		6	6	6														Williams		7	6	6
	Peach		3	1	4					Ingraham		1	5	2
	Williams		6	6	6					Williams		6	7	6
	Thayer		0	2	1																							Williams		3	3	6	6	4
	LeRoy		6	6	6																							Anderson		6	6	2	4	6
	De La Borbolla		4	2	3					LeRoy		1	2	3
	Hawkes		6	6	6					Hawkes		6	6	6
	Rosenbaum		2	3	3														Hawkes		8	0	3
	Symington																		Anderson		10	6	6
	Caner		w/	o						Symington		1	0	5
	Anderson		1	6	6	6				Anderson		6	6	7
	Rice		6	2	3	3

	First round									Second round									Third round									Fourth round
	Talland
	Murray		w/	o						Talland		w/	o
	Mathey									Mathey
	Chapin		w/	o															Mathey		w/	o
	Morgan		6	6	4	6													Lowe
	Kamber		4	2	6	2				Morgan		2	2	2
	Lowe									Lowe		6	6	6
	Werner		w/	o																								Lowe		6	6	6
	Banks																											Pearson		2	3	3
	Edralin		w/	o						Banks		6	6	9	6
	Dudley									Dudley		3	3	11	2
	Garcia		w/	o															Banks		3	3	4
	Pearson		6	6	6														Pearson		6	6	6
	Davis		3	2	4					Pearson		5	3	6	6	6
	Niles		6	6	6					Niles		7	6	3	4	3
	Miller		1	0	2

	First round									Second round									Third round									Fourth round
	Johnston		6	6	6
	Kelleher		4	4	4					Johnston		6	6	6
	Hall		2	3	7	8	7			Hall		4	1	4
	Ackerland		6	6	5	6	5												Johnston		2	3	6	9	6
	Hayes		6	6	6														Richards		6	6	3	7	2
	Richards		1	1	0					Hayes		3	4	4
	Richards		6	6	3	6				Richards		6	6	6
	Herndon		1	1	6	4																						Johnston		6	5	4	3
	Allen		6	7	6																							Tilden		4	7	6	6
	Hennessey		2	5	1					Allen		3	0	10
	Shimizu		6	6	6					Shimizu		6	6	12
	Nielsen		1	1	1														Shimizu		4	4	1
	Tilden		6	6	6														Tilden		6	6	6
	Wright		0	0	1					Tilden		6	6	6
	Goldsborough		6	7	6					Goldsborough		2	1	4
	Goldman		2	5	2

	First round									Second round									Third round									Fourth round
	Magee		4	6	2	7	8
	Gore		6	0	6	5	6			Magee		2	8	2
	Neer		6	6	9					Neer		6	10	6
	Tremaine		2	1	7														Neer		3	4	6	4
	Todd		6	6	6														Davis		6	6	2	6
	Groesbeck		1	1	0					Todd		6	6	4	3	3
	Davis									Davis		4	3	6	6	6
	Ingersoll		w/	o																								Davis		9	5	14	6
	Emerson		6	6	5	6																						Clothier		7	7	12	3
	Osborne		3	4	7	1				Emerson		6	6	6	6
	de Turenne		6	6	10					de Turenne		3	8	4	4
	Bruneau		0	4	8														Emerson		1	4	1
																			Clothier		6	6	6
										Clothier		6	6	6
										Taylor		1	0	2

	First round									Second round									Third round									Fourth round
										Rogers		6	6	6
										Martin		1	4	2
																			Rogers		4	6	2	12	2
																			Gallon		6	2	6	10	6
										Gallon		6	6	6
										Neeley		3	1	2
																												Gallon		0	1	4
																												Kinsey		6	6	6
										Kinsey		6	6	6
										Watson		3	2	2
																			Kinsey		6	6	6
																			Fall		0	0	3
										Fall		7	6	6
										Wilson		5	1	2

• 1921 U.S. National Championships (tennis)
• U.S. National Championships (tennis) by year – Men's singles

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