TheU.S. Professional Indoor Championships, also known asU.S. Pro Indoor,^[1] was a professionaltennis tournament founded in 1962 as thePhiladelphia Invitational Indoor Tennis Championships.^[2] The tournament was held inPhiladelphia, United States from 1962 to 1998. It played on indoorcarpet courts, and indoorhard courts. It was anILTF sanctioned event from 1962 to 1967 and again in 1970, theWorld Championship Tennis (WCT) circuit in 1968, 1969 and from 1971 to 1977 and theGrand Prix Tour from 1978 to 1989 before being held on theATP Tour. It was held annually first at theSpectrum, and then at theCoreStates Center. It was originally named the Philadelphia Indoor Open Tournament prior to the open era.

The tournament was founded in 1962 as thePhiladelphia Invitational Indoor Tennis Championships.^[3][4] This tournament until 1970 was part of theILTF World Circuit.^[4] In 1964 the tournament was also known as the Philadelphia Indoor Championships.^[4][5] In 1969 the name was changed to the Philadelphia International Indoor Open Championships.^[4] In 1970 the tournament was organised by theInternational Tennis Players Association (founded in 1965 as the International Professional Tennis Players Association)^[6] and branded as theInternational Tennis Players Association Open Indoor^[7] orITPA Open Indoor. In 1971 the tournament was re-branded as thePhiladelphia International Indoor Open Championships^[8] also called thePhiladelphia International Indoor^[9]

In 1972 theUnited States Professional Indoor tennis championships were created inPhiladelphia, United States, as part of theWCT circuit,^[10][11] rival of the National Tennis League (NTL). As the first event of the season, the PhiladelphiaU.S. Professional Indoor attracted all WCT stars at the PhiladelphiaSpectrum at each of its yearly editions, withRod Laver,John Newcombe orMarty Riessen winning the event in the early 1970s. After the WCT absorbed the NTL in 1970, the tournament continued to exist within the WCT tour until 1978, when the event officially became part of theGrand Prix Tour, precursor of the currentATP Tour.

As part of the Grand Prix's top tier tournaments until 1986, the Philadelphia event known as theU.S. Pro Indoor since 1973, saw American players dominating the fields in the 1970s and 1980s, withTim Mayotte reaching four finals,World No. 1sJimmy Connors andJohn McEnroe six finals each, and CzechoslovakIvan Lendl three. In 1985, Swiss watch company Ebel S.A. started its six-year sponsorship of the event, the tournament becoming until 1990 theEbel U.S. Pro Indoor.^[12][13] The event entered the new ATP circuit in 1990 as part of theChampionship Series, to see eighteen-year-old, and futureUS Open championPete Sampras win his first career title againstAndrés Gómez.

In 1991, the event lost Ebel's sponsorship,^[14] and went back to being theU.S. Pro Indoor for two editions, beforeComcast became the sponsor of the event in 1992, effectively saving it from being discontinued.^[15] In the following years, theComcast U.S. Indoor's prize money was reduced to less than a million dollars, preventing the creation of attractive line ups, and gaining the nickname "Comatose U.S. Indoor".^[16] In 1997,Advanta, already the sponsor of the 1971-created women's tournament of Philadelphia, theAdvanta Championships, since 1995, took upon the sponsorship of the men's event, which also became theAdvanta Championships.Pete Sampras won his third and fourth Philadelphia titles in the last two editions of the event, taking place on indoorhard courts at theCoreStates Center, before it was definitely discontinued in 1998.

Year	Champions	Runners-up	Score
1962	Jon Douglas	Ronald Holmberg	5–7, 3–6, 6–1, 6–2, 7–5
1963	Whitney Reed	Frank Froehling	4–6, 6–1, 8–6, 6–4
1964	Chuck McKinley	Rafael Osuna	6–3, 8–6, 5–7, 4–6, 6–3
1965	Charlie Pasarell	Ian Crookenden	6–8, 11–9, 8–6, 6–4
1966	Charlie Pasarell	Arthur Ashe	13–11, 6–2, 2–6, 9–7
1967	Arthur Ashe	Charlie Pasarell	7–5, 9–7, 6–3
1968	Manuel Santana	Jan Leschly	8–6, 6–3
1969	Rod Laver	Tony Roche	7–5, 6–4, 6–4
1970	Rod Laver(2)	Tony Roche	6–3, 8–6, 6–2
1971	John Newcombe	Rod Laver	7–6(7–5), 7–6(7–1), 6–4
1972	Rod Laver(3)	Ken Rosewall	4–6, 6–2, 6–2, 6–2
1973	Stan Smith	Robert Lutz	7–6(7–2), 7–6(7–5), 4–6, 6–4
1974	Rod Laver(4)	Arthur Ashe	6–1, 6–4, 3–6, 6–4
1975	Marty Riessen	Vitas Gerulaitis	7–6(7–1), 5–7, 6–2, 6–7(0–7), 6–3
1976	Jimmy Connors	Björn Borg	7–6(7–5), 6–4, 6–0
1977	Dick Stockton	Jimmy Connors	3–6, 6–4, 3–6, 6–1, 6–2
1978	Jimmy Connors(2)	Roscoe Tanner	6–2, 6–4, 6–3
1979	Jimmy Connors(3)	Arthur Ashe	6–3, 6–4, 6–1
1980	Jimmy Connors(4)	John McEnroe	6–3, 2–6, 6–3, 3–6, 6–4
1981	Roscoe Tanner	Wojtek Fibak	6–2, 7–6(7–5), 7–5
1982	John McEnroe	Jimmy Connors	6–3, 6–3, 6–1
1983	John McEnroe(2)	Ivan Lendl	4–6, 7–6(9–7), 6–4, 6–3
1984	John McEnroe(3)	Ivan Lendl	6–3, 3–6, 6–3, 7–6(7–3)
1985	John McEnroe(4)	Miloslav Mečíř	6–3, 7–6(7–5), 6–1
1986	Ivan Lendl	Tim Mayotte	(walkover)
1987	Tim Mayotte	John McEnroe	3–6, 6–1, 6–3, 6–1
1988	Tim Mayotte(2)	John Fitzgerald	4–6, 6–2, 6–2, 6–3
1989	Boris Becker	Tim Mayotte	7–6(7–4), 6–1, 6–3
1990	Pete Sampras	Andrés Gómez	7–6(7–4), 7–5, 6–2
1991	Ivan Lendl(2)	Pete Sampras	5–7, 6–4, 6–4, 3–6, 6–3
1992	Pete Sampras(2)	Amos Mansdorf	6–1, 7–6(7–4), 2–6, 7–6(7–2)
1993	Mark Woodforde	Ivan Lendl	5–4 (ret.)
1994	Michael Chang	Paul Haarhuis	6–3, 6–2
1995	Thomas Enqvist	Michael Chang	0–6, 6–4, 6–0
1996	Jim Courier	Chris Woodruff	6–4, 6–3
1997	Pete Sampras(3)	Patrick Rafter	5–7, 7–6(7–4), 6–3
1998	Pete Sampras(4)	Thomas Enqvist	7–5, 7–6(7–3)

Year	Champions	Runners-up	Score
1968	Not held
1969	Tom Okker Marty Riessen	John Newcombe Tony Roche	8–6, 6–4
1970	Ilie Năstase Ion Țiriac	Arthur Ashe Dennis Ralston	6–4, 6–3
1971	Competition stopped at the quarterfinals stage
1972	Arthur Ashe Robert Lutz	John Newcombe Tony Roche	6–3, 6–7, 6–3
1973	Brian Gottfried Dick Stockton	Roy Emerson Rod Laver	4–6, 6–3, 6–4
1974	Pat Cramer Mike Estep	Jean-Baptiste Chanfreau Georges Goven	6–1, 6–1
1975	Brian Gottfried Raúl Ramírez	Dick Stockton Erik van Dillen	3–6, 6–3, 7–6(7–4)
1976	Rod Laver Dennis Ralston	Bob Hewitt Frew McMillan	7–6(8–6), 7–6(7–3)
1977	Bob Hewitt Frew McMillan	Wojtek Fibak Tom Okker	6–1, 1–6, 6–3
1978	Bob Hewitt Frew McMillan	Vitas Gerulaitis Sandy Mayer	6–4, 6–4
1979	Wojtek Fibak Tom Okker	Peter Fleming John McEnroe	5–7, 6–1, 6–3
1980	Peter Fleming John McEnroe	Brian Gottfried Raúl Ramírez	6–3, 7–6
1981	Sherwood Stewart Marty Riessen	Brian Gottfried Raúl Ramírez	6–2, 6–2
1982	Peter Fleming John McEnroe	Sherwood Stewart Ferdi Taygan	7–6, 6–4
1983	Kevin Curren Steve Denton	Peter Fleming John McEnroe	6–4, 7–6
1984	Peter Fleming John McEnroe	Henri Leconte Yannick Noah	6–2, 6–3
1985	Mats Wilander Joakim Nyström	Wojtek Fibak Sandy Mayer	3–6, 6–2, 6–2
1986	Scott Davis David Pate	Stefan Edberg Anders Järryd	7–6, 3–6, 6–3, 7–5
1987	Sergio Casal Emilio Sánchez	Christo Steyn Danie Visser	3–6, 6–1, 7–6
1988	Kelly Evernden Johan Kriek	Kevin Curren Danie Visser	7–6, 6–3
1989	Paul Annacone Christo van Rensburg	Rick Leach Jim Pugh	6–3, 7–5
1990	Rick Leach Jim Pugh	Grant Connell Glenn Michibata	3–6, 6–4, 6–2
1991	Rick Leach Jim Pugh	Udo Riglewski Michael Stich	6–4, 6–4
1992	Todd Woodbridge Mark Woodforde	Jim Grabb Richey Reneberg	6–4, 7–6
1993	Jim Grabb Richey Reneberg	Marcos Ondruska Brad Pearce	6–7, 6–3, 6–0
1994	Paul Haarhuis Jacco Eltingh	Jim Grabb Jared Palmer	6–3, 6–4
1995	Jim Grabb Jonathan Stark	Paul Haarhuis Jacco Eltingh	7–6, 6–7, 6–3
1996	Todd Woodbridge Mark Woodforde	Byron Black Grant Connell	7–6, 6–2
1997	Sébastien Lareau Alex O'Brien	Ellis Ferreira Patrick Galbraith	6–3, 6–3
1998	Jacco Eltingh Paul Haarhuis	David Macpherson Richey Reneberg	7–6, 6–7, 6–2

Most titles	Rod Laver	4
	Jimmy Connors
	John McEnroe
	Pete Sampras
Most finals	Jimmy Connors	6
	John McEnroe
Most consecutive titles	John McEnroe (1982–1985)	4
Most consecutive finals	Jimmy Connors (1976–1980)	5

A chronological list of this tournaments names:

• Philadelphia Invitational Indoor Tennis Championships (1962–1965)
• Philadelphia International Indoor Championships (1966–1968)
• International Tennis Players Association Open Indoor (1970)
• Philadelphia International Indoor Open Championships (1969, 1971)
• U.S. Professional Indoor (1972–1984)
• Ebel U.S. Pro Indoor (1985–1990)
• U.S. Pro Indoor (1991–1992)
• Comcast U.S. Indoor (1993-1996)
• Advanta Championships (1997–1998)

• Marilyn Fernberger
• U.S. National Indoor Championships

• itftennis.com search function (search Philadelphia)

• U.S. Pro Indoor
• ATP Tour
• Hard court tennis tournaments
• Indoor tennis tournaments
• Sports in Philadelphia
• Defunct tennis tournaments in the United States
• World Championship Tennis
• Tennis in Pennsylvania
• 1968 establishments in Pennsylvania
• 1998 disestablishments in Pennsylvania
• Grand Prix tennis circuit

• Articles with short description
• Short description matches Wikidata
• Pages using infobox tennis tournament with location field