1921 U.S. National Championships – Men's singles

Men's singles
1921 U.S. National Championships
Champion	Bill Tilden
Runner-up	Wallace Johnson
Score	6–1, 6–3, 6–1

Bill Tilden defeated Wallace Johnson 6–1, 6–3, 6–1 in the final to win the Men's Singles tennis title at the 1921 U.S. National Championships. It was Tilden's second U.S. Championships title and his fourth Grand Slam title overall

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking
• NG = Next Gen Accelerator Program entrant

Final eight

	Quarterfinals									Semifinals									Final
		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

Earlier rounds

Section 1

	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

Section 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

Section 3

	First Round									Second Round									Third Round									Fourth Round
		Dionne	7	7	10
		Evans	5	5	8						Dionne	3	1	1
		Fischer	w.	o.							Fischer	6	6	6
		Kashio																		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	w.	o.							Bernstein	2	3	3
		Larned																											Hunter	6	6	6
		Baggs	w.	o.																									Anderson	3	3	1
		Garland									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

Section 6

	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																		Tilden	6	6	6
		Wright									Tilden	6	6	6
											Goldsborough	2	1	4

Section 8

	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