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TheU.S. Pro Tennis Championships were played each year from 1927 to 1999 (except 1944). Up to 1967, before the start of the "Open Era", this tournament was regarded as part of theprofessional grand slam. In 1963 the tournament failed financially but was revived in Boston without a break.

After World War IIBobby Riggs,Pancho Segura andPancho Gonzales won the Championships multiple times. Into the 1960s, the most frequent winners wereRod Laver andKen Rosewall.

	Round of 16									Quarterfinals									Semifinals									Final
	Bobby Riggs		6	6	6
	Jack March		2	3	3					Bobby Riggs		6	9	6	6
	John Faunce		6	9	6					John Faunce		1	11	3	3
	Jack Jossi		4	7	1														Bobby Riggs		6	6	6
	Wayne Sabin		4	7	6	6	6												Wayne Sabin		1	3	4
	Bill Tilden		6	9	1	1	0			Wayne Sabin		7	7	7
	Fred Perry		6	6	6					Fred Perry		5	5	5
	Frank Goeltz		2	3	2																							Bobby Riggs		6	6	6
	Welby Van Horn		6	6	4	6																						Don Budge		3	1	1
	John Nogrady		3	3	6	0				Welby Van Horn		6	6	3	6	4
	Frank Kovacs		10	4	11	10				Frank Kovacs		1	1	6	8	6
	Vincent Richards		8	6	9	8													Frank Kovacs		8	2	2
	Carl Earn		7	6	4	6													Don Budge		10	6	6
	Gene Mako		5	4	6	3				Carl Earn		4	3	1
	Don Budge		6	6	6					Don Budge		6	6	6
	John Howard		0	2	4

	Round of 16									Quarterfinals									Semifinals									Final
	Don Budge		6	6	6
	Jimmy Adler		1	0	1					Don Budge		6	6	6
	Wayne Sabin		7	6	6					Wayne Sabin		2	3	4
	Al Doyle		5	2	2														Don Budge		7	6	4	6
	Fred Perry		6	6	6														Welby Van Horn		5	3	6	3
	John Nogrady		3	1	4					Fred Perry		12	2	4
	Welby Van Horn		6	6	6					Welby Van Horn		14	6	6
	William C. Crosby		3	4	4																							Don Budge		6	3	8	6	3
	Bobby Riggs		6	6	6																							Bobby Riggs		3	6	10	4	6
	Martin Buxby		1	1	1					Bobby Riggs		6	6	6
	Elwood Cooke		6	6	6					Elwood Cooke		4	1	2
	Jack Jossi		2	1	2														Bobby Riggs		6	6	6
	Frank Kovacs		6	6	6														Frank Kovacs		3	3	4
	Jack March		2	3	2					Frank Kovacs		6	6	6
	John Faunce		6	6	6					John Faunce		2	2	2
	Robert Stubbs		2	2	4

	Round of 16									Quarterfinals									Semifinals									Final
	Bobby Riggs		6	6	6
	Richard Van den Bosch		0	1	3					Bobby Riggs		6	4	6	6
	Elwood Cooke		12	4	6	10				Elwood Cooke		4	6	3	0
	Pierre Pellizza		10	6	1	8													Bobby Riggs		6	6	7
	Frank Kovacs		6	6	6														Frank Kovacs		3	2	5
	Robert Harman		3	2	0					Frank Kovacs		3	3	6	6	6
	Pancho Segura		6	6	6					Pancho Segura		6	6	4	3	3
	Carl Earn		4	0	3																							Bobby Riggs		12	2	6	3
	Jack Kramer		6	6	6																							Jack Kramer		14	6	3	6
	Robert Stubbs		1	0	2					Jack Kramer		3	16	4	8	6
	Welby Van Horn		6	3	6	6				Welby Van Horn		6	14	6	6	4
	John Nogrady		1	6	1	1													Jack Kramer		6	8	3	6	6
	Don Budge		6	6	6														Don Budge		4	10	6	4	0
	Jimmy Adler		0	0	1					Don Budge		4	6	6	6
	Dinny Pails		3	6	6	6				Dinny Pails		6	2	3	3
	Wayne Sabin		6	3	3	4

	Round of 16									Quarterfinals									Semifinals									Final
	Bobby Riggs		6	6	5	6
	John H. Cushingham		1	4	7	3				Bobby Riggs		12	6	6
	Jimmy Evert		6	6	6					Jimmy Evert		10	3	2
	Wayne Sabin		3	3	3														Bobby Riggs		6	7	6	6
	Welby Van Horn		6	7	9														Welby Van Horn		8	5	3	3
	William C. Crosby		3	5	7					Welby Van Horn		6	3	6	6
	Carl Earn		6	7	6					Carl Earn		4	6	3	2
	John Faunce		4	5	1																							Bobby Riggs		9	3	6	7
	Don Budge		6	6	6																							Don Budge		7	6	3	5
	Joseph Fishbach		1	1	1					Don Budge		6	6	6
	Elwood Cooke		9	9	9					Elwood Cooke		3	2	2
	Mitch Gornto		7	7	7														Don Budge		2	7	6	6
	Frank Kovacs		6	6	6														Frank Kovacs		6	5	4	4
	Frank Goeltz		1	0	4					Frank Kovacs		6	6	1	6
	John Nogrady		10	3	6	6				John Nogrady		2	4	6	4
	Pierre Pellizza		8	6	0	3

	Round of 16							Quarterfinals									Semifinals									Final
	Jack Kramer		6	6
	Jimmy Evert		4	2				Jack Kramer		6	6	6
	Carl Earn		6	6				Carl Earn		1	2	3
	Al Doyle		3	2													Jack Kramer		4	10	6	4	3
	Pancho Segura		6	6													Pancho Segura		6	8	1	6	6
	John Nogrady		2	2				Pancho Segura		6	6	6
	Welby Van Horn		6	3	6			Welby Van Horn		0	2	2
	Joe Whalen		2	6	2																					Pancho Segura		6	1	8	4
	Bobby Riggs		6	8																						Frank Kovacs		1	6	6	4	rtd.
	Pierre Pellizza		1	6				Bobby Riggs		6	6	7
	Jack March		6	1	6			Jack March		4	1	5
	Gene Mako		2	6	3												Bobby Riggs		2	3	7	5
	Frank Parker		6	6													Frank Kovacs		6	6	5	7
	John Faunce		2	3				Frank Parker		0	0	1
	Frank Kovacs		6	6				Frank Kovacs		6	6	6
	Joe Fishbach		1	0

	Round of 16							Quarterfinals									Semifinals									Final
	Frank Kovacs		6	6
	Martin Buxby		0	2				Frank Kovacs		6	6	6
	Bill Tilden		7	6				Bill Tilden		4	3	3
	Wayne Sabin		5	3													Frank Kovacs		19	6	6
	Vinny Rurac		6	7													Don Budge		17	2	1
	Jack March		2	5				Vinny Rurac		2	1	5
	Don Budge		6	6				Don Budge		6	6	6
	Al Doyle		4	3																						Frank Kovacs		6	3	6	1	9
	Carl Earn		6	6																						Pancho Segura		2	6	3	6	7
	{{Preview warning|unrecognized country in Template:flag icon}} R. McFarland		3	1				Carl Earn		6	9	6
	Frank Parker		8	6				Frank Parker		2	7	3
	{{Preview warning|unrecognized country in Template:flag icon}} R. Rogers		6	0													Carl Earn		6	3	2	2
	Elwood Cooke		6	6													Pancho Segura		3	6	6	6
	George Lyttleton-Rogers		1	1				Elwood Cooke		1	1	4
	Pancho Segura		6	6				Pancho Segura		6	6	6
	George Richey		3	3

Round robin		W–L	Pancho Segura	Pancho Gonzales	Bobby Riggs	Welby Van Horn	Frank Parker	Jack Kramer
1.	Pancho Segura	4–0		6–3, 6–4, 6–2	6–0, 8–6, 6–1	6–1, 6–2, 6–4	6–2, 6–2, 6–0
2.	Pancho Gonzales	3–1	3–6, 4–6, 2–6		6–3, 4–6, 6–2, 6–3	6–3, 8–6, 6–0	4–6, 6–1, 7–5, 6–2
3.	Bobby Riggs	2–2	0–6, 6–8, 1–6	3–6, 6–4, 2–6, 3–6		6–3, 8–10, 4–6, 6–4, 6–4	6–3, 17–15, 6–2
4.	Welby Van Horn	1–3	1–6, 2–6, 4–6	3–6, 6–8, 0–6	3–6, 10–8, 6–4, 4–6, 4–6		3–6, 6–3, 3–6, 10–8, 6–2
5.	Frank Parker	0–5	2–6, 2–6, 0–6	6–4, 1–6, 5–7, 2–6	3–6, 15–17, 2–6	6–3, 3–6, 6–3, 8–10, 2–6		6–4, 0–6, 6–4, 0–6, 3–6
6.	Jack Kramer1	1–0					4–6, 6–0, 4–6, 6–0, 6–3

¹ withdrew due to injury.

	Round of 16							Quarterfinals							Semifinals									Final
	Pancho Gonzales		6	6
	Frank Rerlcha		0	2				Pancho Gonzales		6	8	6
	John Howard		3	7	6			John Howard		0	10	0
	Jerry Evert		6	5	4										Pancho Gonzales		6	6	6
	Frank Kovacs		6	6											Frank Kovacs		3	3	3
	Vic Braden		3	2				Frank Kovacs		6	7
	Jack March		6	8				Jack March		2	5
	Ed Burke		3	6																				Pancho Gonzales		6	4	6	4	0
	Pancho Segura		6	6																				Pancho Segura		3	6	3	6	6
	Jim Hendrix		2	2				Pancho Segura		6	6
	Al Doyle		6	6				Al Doyle		2	0
	Tom Burke		4	2											Pancho Segura		6	6	6
	Don Budge		6	6											Don Budge		0	3	2
	Henry Kenny		1	2				Don Budge		6	6
	Jack Rodgers		6	2	6			Jack Rodgers		3	2
	George Richey		4	6	3

	Round of 16						Quarterfinals						Semifinals						Final
							Pancho Gonzales	6	6
	Jack Rodgers	8	6				Jack Rodgers	3	4
	{{Preview warning|unrecognized country in Template:flag icon}}Jerry Evert	6	2										Pancho Gonzales	6	6
	Bobby Riggs	9	6										Bobby Riggs	3	2
	Vic Braden	7	2				Bobby Riggs	6	6
	Carl Earn	6	6				Carl Earn	2	4
	{{Preview warning|unrecognized country in Template:flag icon}} J. Morton	3	1																Pancho Gonzales	4	6	7	6
																			Don Budge	6	4	5	2
							Frank Kovacs	6	6
	Al Doyle	4	6	6			Al Doyle	2	4
	George Richey	6	4	1									Frank Kovacs	9	4
	Robert Rodgers	3	6	6									Don Budge	11	6
	{{Preview warning|unrecognized country in Template:flag icon}} D. Martin	6	4	4			Robert Rodgers	4	3
	Don Budge	w/o					Don Budge	6	6
	Joe Whalen

• Note – Sources vary as to which event was the U.S. Pro in 1954. At the time, Los Angeles had the semi-official title.

	Round of 16							Quarterfinals							Semifinals									Final
								Pancho Gonzales		6	6
								Al Doyle		1	2
															Pancho Gonzales		6	6	6
	Carl Earn		6	6											Don Budge		2	3	4
	Elwood Cooke		1	4				Carl Earn		6	5	2
	Don Budge		6	6				Don Budge		3	7	6
	Bobby Riggs		4	4																				Pancho Gonzales		6	9	3	6
	Frank Sedgman		6	6																				Frank Sedgman		3	7	6	2
	Vic Braden		0	1				Frank Sedgman		6	6
	Frank Kovacs		6	6				Frank Kovacs		1	4
	Thomas Burke		3	3											Frank Sedgman		6	7	2	6
															Pancho Segura		2	5	6	4
								Jack Rodgers		0	2
								Pancho Segura		6	6

	Round of 16							Quarterfinals							Semifinals									Final
	Pancho Gonzales		6	8
	Robert Harman		4	6				Pancho Gonzales		6	6
	Gene Mako		6	6				Gene Mako		0	3
	Jack Jossi		1	4											Pancho Gonzales		6	6	6
	Samuel Match		6	6											Frank Sedgman		4	4	4
	Wayne Sabin		1	2				Samuel Match		3	2
	Frank Sedgman		6	6				Frank Sedgman		6	6
	Pierre Pallizza		0	1																				Pancho Gonzales		6	4	2	6	6
	Carl Earn		6	6																				Pancho Segura		4	6	6	2	4
	Walter Wesbrook		2	2				Carl Earn		6	6
	Bob Rogers		6	6				Bob Rogers		1	3
	George Toley		3	4											Carl Earn		2	3	1
	Constantin Tanacescu		6	6											Pancho Segura		6	6	6
	John Faunce		3	4				Constantin Tanacescu		0	1
	Ben Gorchakoff		0	2				Pancho Segura		6	6
	Pancho Segura		6	6

	Round of 16						Quarterfinals						Semifinals						Final
							Pancho Gonzales	21	21
	Frank Parker	21	21				Frank Parker	15	13
	John Faunce	13	17										Pancho Gonzales	21	13	22
													Frank Kovacs	18	21	20
							Frank Kovacs	21	21
	Bobby Riggs	21	21				Bobby Riggs	15	13
	Martin Buxby	17	19																Pancho Gonzales	21	19	21	20	21
																			Pancho Segura	16	21	8	22	19
							Don Budge	20	21	12
	Carl Earn	21	21				Carl Earn	22	13	21
	{{Preview warning|unrecognized country in Template:flag icon}}Vinnie Rurac	15	12										Carl Earn	15	17
													Pancho Segura	21	21
							Pancho Segura	21	21
	Fred Perry	21	18	21			Fred Perry	12	10
	Al Doyle	15	21	12

	Quarterfinals								Semifinals								Final
	Pancho Segura	21	21	21
	Gene Garrett	13	8	10
									Pancho Segura	21	21	21
									Tony Trabert	13	10	16
	Tony Trabert	21	21	21
	Carl Earn	11	17	7
																	Pancho Segura	15	21	14	20
																	Pancho Gonzales	21	13	21	22
	Pancho Gonzales	21	21	33
	Frank Parker	16	17	31
									Pancho Gonzales	23	21	21
									Rex Hartwig	21	18	18
	Rex Hartwig	21	21	21
	Frank Kovacs	10	13	16

	Quarterfinals						Semifinals						Final
	Pancho Gonzales	6	6
	Frank Parker	2	3
							Pancho Gonzales	3	11	8
							Tony Trabert	6	9	6
	Tony Trabert	6	9
	Frank Kovacs	3	7
													Pancho Gonzales	6	3	7	6
													Pancho Segura	3	6	5	1
	Ken Rosewall	6	6
	Bobby Riggs	2	2
							Ken Rosewall	2	3
							Pancho Segura	6	6
	Pancho Segura	8	6
	Dinny Pails	6	4

	Quarterfinals						Semifinals						Final
	Pancho Gonzales	6	7
	Armando Vieira	3	5
							Pancho Gonzales	6	6
							Pancho Segura	4	3
	Pancho Segura	6	6
	Al Doyle	1	3
													Pancho Gonzales	3	4	14	6	6
													Lew Hoad	6	6	12	1	4
	Lew Hoad	5	6	6
	Frank Parker	7	2	4
							Lew Hoad	6	13
							Tony Trabert	2	11
	Tony Trabert	6	6
	Bobby Riggs	3	1

	Quarterfinals						Semifinals						Final
	Pancho Gonzales	6	6
	Jerry DeWitts	3	1
							Pancho Gonzales	6	3	6
							Ashley Cooper	3	6	3
	Ashley Cooper	6	6
	Frank Parker	4	2
													Pancho Gonzales	6	6	6
													Lew Hoad	4	2	4
	Pancho Segura	6	6
	Malcolm Anderson	0	3
							Pancho Segura	6	2
							Lew Hoad	8	6
	Lew Hoad	6	6
	Bobby Riggs	2	3

	Quarterfinals							Semifinals							Final
	Tony Trabert		6	6
	Frank Parker		0	2				Tony Trabert		4	6	6
								Pancho Segura		6	4	4
															Tony Trabert		5	4
	Alex Olmedo		4	6	6										Alex Olmedo		7	6
	Sam Giammalva		6	3	1			Alex Olmedo		6	7
								Ashley Cooper		4	5

	First round				Second round				Third round				Semifinal						Final
													Pancho Gonzales	6	6
													Andrés Gimeno	4	3
									Andrés Gimeno	6
									Frank Parker	0
					Frank Parker	6
	Armando Vieira	6			Armando Vieira	3
	Al Doyle	3																	Pancho Gonzales	6	7
	Sam Giammalva	w/o																	Frank Sedgman	3	5
	Jack Arkinstall				Sam Giammalva	8
					Bobby Riggs	6
									Sam Giammalva	2
									Barry MacKay (tennis)	6
													Barry MacKay (tennis)	4	9
													Frank Sedgman	6	11

	Semifinals						Final
	Earl Buchholz	6	6
	Jack Arkinstall	2	4
							Earl Buchholz	6	6	6
							Pancho Segura	4	3	4
	Pancho Segura	6	7	11
	Barry MacKay (tennis)	4	9	9

	Quarterfinals									Semifinals									Final
	Rod Laver		6	1	6	6
	Pancho Segura		2	6	2	3
										Rod Laver		5	6	6	6
										Earl Buchholz		7	4	4	3
	Earl Buchholz		6	6	6
	Lew Hoad		4	1	2
																			Rod Laver		4	2	2
																			Ken Rosewall		6	6	6
	Alex Olmedo		10	2	6	6
	Pancho Gonzales		8	6	0	1
										Alex Olmedo		3	3	9
										Ken Rosewall		6	6	11
	Ken Rosewall		6	6	6
	Tony Trabert		2	2	2