# 1973 Grand Prix (tennis)

The 1973 Commercial Union Assurance Grand Prix was a tennis circuit administered by the International Lawn Tennis Federation (ILTF) which served as a forerunner to the current Association of Tennis Professionals (ATP) World Tour and the Women's Tennis Association (WTA) Tour. The circuit consisted of the four modern Grand Slam tournaments and open tournaments recognised by the ILTF. Bonus points were awarded to players who were nominated to play in certain 1973 Davis Cup ties and who missed tournaments through competing in those ties. The Commercial Union Assurance Masters is included in this calendar but did not count towards the Grand Prix.

## Schedule
### Key

* AA events
* Grand Prix Masters
* A events
* B events
* C events
* Team events

### December 1972

| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
| 26 Dec | Australian Open Melbourne, Australia Grand Slam – Group A Grass – $27,450 – 56S/32D Singles – Doubles | John Newcombe 6–3, 6–7, 7–5, 6–1 | Onny Parun | Karl Meiler Patrick Proisy | Wanaro N'Godrella Alex Metreveli John Cooper Bob Carmichael |
| 26 Dec | Australian Open Melbourne, Australia Grand Slam – Group A Grass – $27,450 – 56S/32D Singles – Doubles | Mal Anderson John Newcombe 6–3, 6–4, 7–6 | John Alexander Phil Dent | Karl Meiler Patrick Proisy | Wanaro N'Godrella Alex Metreveli John Cooper Bob Carmichael |

### May

| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
| 7 May | Rothmans British Hard Court Championships Bournemouth, Great Britain Group B Clay – 64S/32D/32XD | Adriano Panatta 6–8, 7–5, 6–3, 8–6 | Ilie Năstase | Barry Phillips-Moore Ross Case | Geoff Masters Buster Mottram François Jauffret Patrice Dominguez |
| 7 May | Rothmans British Hard Court Championships Bournemouth, Great Britain Group B Clay – 64S/32D/32XD | Juan Gisbert Sr. Ilie Năstase 6–4, 8–6 | Adriano Panatta Ion Țiriac | Barry Phillips-Moore Ross Case | Geoff Masters Buster Mottram François Jauffret Patrice Dominguez |
| 7 May | Rothmans British Hard Court Championships Bournemouth, Great Britain Group B Clay – 64S/32D/32XD | Virginia Wade Frew McMillan 6–2, 6–3 | Ilana Kloss Bernard Mitton | Barry Phillips-Moore Ross Case | Geoff Masters Buster Mottram François Jauffret Patrice Dominguez |
| 21 May | French Open Paris, France Grand Slam – Group AA Clay – 128S/64D/32XD Singles – Doubles – Mixed doubles | Ilie Năstase 6–3, 6–3, 6–0 | Nikola Pilić | Adriano Panatta Tom Gorman | Tom Okker Paolo Bertolucci Jan Kodeš Roger Taylor |
| 21 May | French Open Paris, France Grand Slam – Group AA Clay – 128S/64D/32XD Singles – Doubles – Mixed doubles | John Newcombe Tom Okker 6–1, 3–6, 6–3, 5–7, 6–4 | Jimmy Connors Ilie Năstase | Adriano Panatta Tom Gorman | Tom Okker Paolo Bertolucci Jan Kodeš Roger Taylor |
| 21 May | French Open Paris, France Grand Slam – Group AA Clay – 128S/64D/32XD Singles – Doubles – Mixed doubles | Françoise Dürr Jean-Claude Barclay 6–1, 6–4 | Betty Stöve Patrice Dominguez | Adriano Panatta Tom Gorman | Tom Okker Paolo Bertolucci Jan Kodeš Roger Taylor |

### June

| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
| 4 Jun | Italian Open Rome, Italy Group A Clay – $101,600 – 96S/48D | Ilie Năstase 6–1, 6–1, 6–1 | Manuel Orantes | Tom Okker Paolo Bertolucci | Stan Smith Péter Szőke Jiří Hřebec Jan Kodeš |
| 4 Jun | Italian Open Rome, Italy Group A Clay – $101,600 – 96S/48D | John Newcombe Tom Okker 6–3, 6–2, 6–4 | Ross Case Geoff Masters | Tom Okker Paolo Bertolucci | Stan Smith Péter Szőke Jiří Hřebec Jan Kodeš |
| 4 Jun | Berlin Open Berlin, West Germany Group C Clay – 32S/16D | Hans-Jürgen Pohmann 6–3, 3–6, 6–3, 6–3 | Karl Meiler | Jürgen Fassbender Eddie Dibbs | Attila Korpás Ulrich Pinner Harald Elschenbroich Bernard Mignot |
| 4 Jun | Berlin Open Berlin, West Germany Group C Clay – 32S/16D | Jürgen Fassbender Hans-Jürgen Pohmann 4–6, 6–4, 6–4 | Raúl Ramírez Joaquín Loyo-Mayo | Jürgen Fassbender Eddie Dibbs | Attila Korpás Ulrich Pinner Harald Elschenbroich Bernard Mignot |
| 11 Jun | German Open Hamburg, West Germany Group B Clay – 62S/28D | Eddie Dibbs 6–1, 3–6, 7–6, 6–3 | Karl Meiler | Jaime Fillol Jürgen Fassbender | Paul Gerken Harald Elschenbroich Jiří Hřebec Martin Mulligan |
| 11 Jun | German Open Hamburg, West Germany Group B Clay – 62S/28D | Jürgen Fassbender Hans-Jürgen Pohmann 7–6, 7–6, 7–6 | Manuel Orantes Ion Țiriac | Jaime Fillol Jürgen Fassbender | Paul Gerken Harald Elschenbroich Jiří Hřebec Martin Mulligan |
| 11 Jun | John Player Open Nottingham, Great Britain Group B Grass – 40S/21D | Erik van Dillen 3–6, 6–1, 6–1 | Frew McMillan | Tom Gorman Jimmy Connors | Jaidip Mukerjea Mark Cox Dick Stockton Stephen Warboys |
| 11 Jun | John Player Open Nottingham, Great Britain Group B Grass – 40S/21D | Tom Gorman Erik van Dillen 6–4, 6–4 | Bob Carmichael Frew McMillan | Tom Gorman Jimmy Connors | Jaidip Mukerjea Mark Cox Dick Stockton Stephen Warboys |
| 18 Jun | Rothmans Championships London, Great Britain Group C Grass – 48S/32D Singles – Doubles | Ilie Năstase 9–8, 6–3 | Roger Taylor | Alex Metreveli Owen Davidson | Ismail El Shafei Jürgen Fassbender John Newcombe Cliff Drysdale |
| 18 Jun | Rothmans Championships London, Great Britain Group C Grass – 48S/32D Singles – Doubles | Tom Okker Marty Riessen 6–4, 7–5 | Ray Keldie Raymond Moore | Alex Metreveli Owen Davidson | Ismail El Shafei Jürgen Fassbender John Newcombe Cliff Drysdale |
| 18 Jun | Rothmans South of England Championships Eastbourne, Great Britain Group B Grass – 32S/16D | Mark Cox 6–2, 2–6, 6–3 | Patrice Dominguez | Onny Parun Allan Stone | Paul Gerken Andrés Gimeno Ian Fletcher Graham Stilwell |
| 18 Jun | Rothmans South of England Championships Eastbourne, Great Britain Group B Grass – 32S/16D | Ove Bengtson Jim McManus 6–4, 4–6, 7–5 | Manuel Orantes Ion Țiriac | Onny Parun Allan Stone | Paul Gerken Andrés Gimeno Ian Fletcher Graham Stilwell |
| 25 Jun | Wimbledon Championships London, Great Britain Grand Slam – Group AA Grass – 128S/64D/56XD Singles – Doubles – Mixed doubles | Jan Kodeš 6–1, 9–8$^{(7–5)}$, 6–3 | Alex Metreveli | Sandy Mayer Roger Taylor | Jürgen Fassbender Jimmy Connors Björn Borg Vijay Amritraj |
| 25 Jun | Wimbledon Championships London, Great Britain Grand Slam – Group AA Grass – 128S/64D/56XD Singles – Doubles – Mixed doubles | Jimmy Connors Ilie Năstase 3–6, 6–3, 6–4, 8–9$^{(3–7)}$, 6–1 | John Cooper Neale Fraser | Sandy Mayer Roger Taylor | Jürgen Fassbender Jimmy Connors Björn Borg Vijay Amritraj |
| 25 Jun | Wimbledon Championships London, Great Britain Grand Slam – Group AA Grass – 128S/64D/56XD Singles – Doubles – Mixed doubles | Billie Jean King Owen Davidson 6–3, 6–2 | Janet Newberry Raúl Ramírez | Sandy Mayer Roger Taylor | Jürgen Fassbender Jimmy Connors Björn Borg Vijay Amritraj |

### July

| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
| 9 Jul | Swedish Open Båstad, Sweden Group B Clay – $50,000 – 32S/22D Singles – Doubles | Stan Smith 6–4, 6–2, 7–6 | Manuel Orantes | Björn Borg Leif Johansson | Martin Mulligan Jaime Pinto Bravo Bob Carmichael Antonio Zugarelli |
| 9 Jul | Swedish Open Båstad, Sweden Group B Clay – $50,000 – 32S/22D Singles – Doubles | Nikola Pilić Stan Smith 2–6, 6–4, 6–4 | Bob Carmichael Frew McMillan | Björn Borg Leif Johansson | Martin Mulligan Jaime Pinto Bravo Bob Carmichael Antonio Zugarelli |
| 9 Jul | Swiss Open Gstaad, Switzerland Group B Clay – 32S | Ilie Năstase 6–4, 6–3, 6–3 | Roy Emerson | Patrick Proisy Karl Meiler | Brian Fairlie Allan Stone Sandy Mayer Tom Okker |
| 9 Jul | Green Shield Welsh Open Newport, Great Britain Group C Grass – 64S/32D | Roger Taylor 9–8, 8–6 | Bob Giltinan | John Paish Jeff Simpson | Terry Ryan John Bartlett Byron Bertram Dick Bohrnstedt |
| 9 Jul | Green Shield Welsh Open Newport, Great Britain Group C Grass – 64S/32D | Title shared. | Bertram / Lloyd Giltinan / Keldie | John Paish Jeff Simpson | Terry Ryan John Bartlett Byron Bertram Dick Bohrnstedt |
| 16 Jul | U.S. Professional Tennis Championships Boston, United States Group B Hard – 32S/16D Singles | Jimmy Connors 6–3, 4–6, 6–4, 3–6, 6–2 | Arthur Ashe | Cliff Richey Clark Graebner | Dick Stockton Marty Riessen John Alexander Roscoe Tanner |
| 16 Jul | Austrian Open Kitzbühel, Austria Group C Clay – 32S/17D | Title shared. | Raúl Ramírez Manuel Orantes | Marcelo Lara Ion Țiriac | Vladimír Zedník José Edison Mandarino Barry Phillips-Moore Vladimir Korotkov |
| 16 Jul | Austrian Open Kitzbühel, Austria Group C Clay – 32S/17D | Jim McManus Raúl Ramírez 6–2, 6–2, 6–3 | José Edison Mandarino Tito Vázquez | Marcelo Lara Ion Țiriac | Vladimír Zedník José Edison Mandarino Barry Phillips-Moore Vladimir Korotkov |
| 16 Jul | Dutch Open Hilversum, the Netherlands Group C Clay – 32S/16D Singles | Tom Okker 2–6, 6–4, 6–4, 6–7, 6–3 | Andrés Gimeno | Allan Stone Geoff Masters | Wanaro N'Godrella Attila Korpás Ian Fletcher Iván Molina |
| 16 Jul | Dutch Open Hilversum, the Netherlands Group C Clay – 32S/16D Singles | Iván Molina Allan Stone 4–6, 7–6, 6–4 | Andrés Gimeno Antonio Muñoz | Allan Stone Geoff Masters | Wanaro N'Godrella Attila Korpás Ian Fletcher Iván Molina |
| 23 Jul | Washington Star International Washington, United States Group A Clay – $75,000 – 64S/32D | Arthur Ashe 6–4, 6–2 | Tom Okker | Jaime Fillol Tom Gorman | Paul Gerken Marty Riessen Nikola Pilić Dick Stockton |
| 23 Jul | Washington Star International Washington, United States Group A Clay – $75,000 – 64S/32D | Ross Case Geoff Masters 2–6, 6–4, 6–4 | Dick Crealy Andrew Pattison | Jaime Fillol Tom Gorman | Paul Gerken Marty Riessen Nikola Pilić Dick Stockton |
| 23 Jul | Volvo International Bretton Woods, United States Group C Clay – 32S/16D Singles | Vijay Amritraj 7–5, 2–6, 7–5 | Jimmy Connors | Ian Fletcher John Alexander | Bob Carmichael Gerald Battrick Tom Edlefsen Rod Laver |
| 23 Jul | Volvo International Bretton Woods, United States Group C Clay – 32S/16D Singles | Rod Laver Fred Stolle 7–6, 4–6, 7–5 | Bob Carmichael Frew McMillan | Ian Fletcher John Alexander | Bob Carmichael Gerald Battrick Tom Edlefsen Rod Laver |
| 30 Jul | First National Bank Classic Louisville, United States Group A Clay – $75,000 – 64S/32D | Manuel Orantes 3–6, 6–3, 6–4 | John Newcombe | Vitas Gerulaitis Guillermo Vilas | Dick Crealy Ross Case Nikola Pilić Antonio Muñoz |
| 30 Jul | First National Bank Classic Louisville, United States Group A Clay – $75,000 – 64S/32D | Manuel Orantes Ion Țiriac 0–6, 6–4, 6–3 | Clark Graebner John Newcombe | Vitas Gerulaitis Guillermo Vilas | Dick Crealy Ross Case Nikola Pilić Antonio Muñoz |
| 30 Jul | Buckeye Championships Columbus, United States Group C Hard – $25,000 – 32S/16D | Jimmy Connors 3–6, 6–3, 6–3 | Charlie Pasarell | Paul Gerken Haroon Rahim | Pancho Gonzales Andrew Pattison Colin Dibley Brian Gottfried |
| 30 Jul | Buckeye Championships Columbus, United States Group C Hard – $25,000 – 32S/16D | Gerald Battrick Graham Stilwell 6–4, 7–6 | Colin Dibley Charlie Pasarell | Paul Gerken Haroon Rahim | Pancho Gonzales Andrew Pattison Colin Dibley Brian Gottfried |

### August

| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
| 6 Aug | Western Championships Cincinnati, United States Group B Clay – $50,000 – 32S/16D | Ilie Năstase 5–7, 6–3, 6–4 | Manuel Orantes | Nikola Pilić Jimmy Connors | John Alexander Guillermo Vilas Roscoe Tanner Patrick Proisy |
| 6 Aug | Western Championships Cincinnati, United States Group B Clay – $50,000 – 32S/16D | John Alexander Phil Dent 1–6, 7–6, 7–6 | Brian Gottfried Raúl Ramírez | Nikola Pilić Jimmy Connors | John Alexander Guillermo Vilas Roscoe Tanner Patrick Proisy |
| 6 Aug | Tanglewood International Tennis Classic Clemmons, United States Group C Clay – 32S/16D | Jaime Fillol 6–2, 6–4 | Gerald Battrick | Jeff Borowiak Vijay Amritraj | Ross Case Brian Fairlie Georges Goven Frew McMillan |
| 6 Aug | Tanglewood International Tennis Classic Clemmons, United States Group C Clay – 32S/16D | Bob Carmichael Frew McMillan 6–3, 6–4 | Brian Fairlie Ismail El Shafei | Jeff Borowiak Vijay Amritraj | Ross Case Brian Fairlie Georges Goven Frew McMillan |
| 13 Aug | U.S. Clay Court Championships Indianapolis, United States Group B Clay – $90,000 – 50S/22D | Manuel Orantes 6–4, 6–1, 6–4 | Georges Goven | Cliff Richey Raúl Ramírez | Brian Gottfried Roscoe Tanner Patrick Proisy Paolo Bertolucci |
| 13 Aug | U.S. Clay Court Championships Indianapolis, United States Group B Clay – $90,000 – 50S/22D | Bob Carmichael Frew McMillan 6–3, 6–4 | Manuel Orantes Ion Țiriac | Cliff Richey Raúl Ramírez | Brian Gottfried Roscoe Tanner Patrick Proisy Paolo Bertolucci |
| 13 Aug | Pennsylvania Championships Merion, United States Group C Grass – 64S/32D | Mike Estep 7–5, 3–6, 7–6, 3–6, 7–5 | Gene Scott | Vijay Amritraj Herb Fitzgibbon | Brian Teacher Ian Fletcher Anand Amritraj Jean-Baptiste Chanfreau |
| 13 Aug | Pennsylvania Championships Merion, United States Group C Grass – 64S/32D | Colin Dibley Allan Stone 7–6, 6–3 | Jeff Austin Fred McNair | Vijay Amritraj Herb Fitzgibbon | Brian Teacher Ian Fletcher Anand Amritraj Jean-Baptiste Chanfreau |
| 20 Aug | Canadian Open Toronto, Ontario, Canada Group A Hard – $100,000 – 64S/32D Singles – Doubles | Tom Okker 6–3, 6–2, 6–1 | Manuel Orantes | Cliff Drysdale Iván Molina | Paolo Bertolucci Björn Borg John Newcombe Arthur Ashe |
| 20 Aug | Canadian Open Toronto, Ontario, Canada Group A Hard – $100,000 – 64S/32D Singles – Doubles | Rod Laver Ken Rosewall 7–5, 7–6 | Owen Davidson John Newcombe | Cliff Drysdale Iván Molina | Paolo Bertolucci Björn Borg John Newcombe Arthur Ashe |
| 20 Aug | Eastern Championships South Orange, United States Group C Grass – 32S/16D | Colin Dibley 6–4, 6–7, 6–4 | Vijay Amritraj | Pancho Gonzales Clark Graebner | Paul Gerken Dick Stockton Ion Țiriac Onny Parun |
| 20 Aug | Eastern Championships South Orange, United States Group C Grass – 32S/16D | Jimmy Connors Ilie Năstase 6–7, 6–3, 6–2 | Pancho Gonzales Tom Gorman | Pancho Gonzales Clark Graebner | Paul Gerken Dick Stockton Ion Țiriac Onny Parun |
| 27 Aug | US Open New York City, United States Grand Slam – Group AA Grass – $118,000–128S/62D/32XD Singles – Doubles – Mixed doubles | John Newcombe 6–4, 1–6, 4–6, 6–2, 6–3 | Jan Kodeš | Stan Smith Ken Rosewall | Onny Parun Nikola Pilić Vijay Amritraj Jimmy Connors |
| 27 Aug | US Open New York City, United States Grand Slam – Group AA Grass – $118,000–128S/62D/32XD Singles – Doubles – Mixed doubles | Owen Davidson John Newcombe 7–5, 2–6, 7–5, 7–5 | Rod Laver Ken Rosewall | Stan Smith Ken Rosewall | Onny Parun Nikola Pilić Vijay Amritraj Jimmy Connors |
| 27 Aug | US Open New York City, United States Grand Slam – Group AA Grass – $118,000–128S/62D/32XD Singles – Doubles – Mixed doubles | Billie Jean King Owen Davidson 6–3, 3–6, 7–6 | Margaret Court Marty Riessen | Stan Smith Ken Rosewall | Onny Parun Nikola Pilić Vijay Amritraj Jimmy Connors |

### September

| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
| 10 Sep | U.S. Hard Court Championships Aptos, United States Group C Hard – 32S/16D | Jeff Austin 7–6, 6–4 | Onny Parun | Haroon Rahim Dick Bohrnstedt | Tom Edlefsen Erik van Dillen John Lloyd Mike Machette |
| 10 Sep | U.S. Hard Court Championships Aptos, United States Group C Hard – 32S/16D | Jeff Austin Fred McNair 6–2, 6–1 | Raymond Moore Onny Parun | Haroon Rahim Dick Bohrnstedt | Tom Edlefsen Erik van Dillen John Lloyd Mike Machette |
| 10 Sep | Rainier International Tennis Classic Seattle, United States Group C Carpet (i) – $37,500 – 32S/16D Singles – Doubles | Tom Okker 7–5, 6–4 | John Alexander | Tom Gorman Cliff Richey | Torben Ulrich Mark Cox Brian Gottfried Arthur Ashe |
| 10 Sep | Rainier International Tennis Classic Seattle, United States Group C Carpet (i) – $37,500 – 32S/16D Singles – Doubles | Tom Gorman Tom Okker 2–6, 6–4, 7–6 | Bob Carmichael Frew McMillan | Tom Gorman Cliff Richey | Torben Ulrich Mark Cox Brian Gottfried Arthur Ashe |
| 17 Sep | Pacific Southwest Open Los Angeles, United States Group A Hard – $75,000 – 64S/32D Singles – Doubles | Jimmy Connors 7–5, 7–6$^{(11–9)}$ | Tom Okker | Raúl Ramírez Ilie Năstase | Stan Smith Charlie Pasarell Ken Rosewall Raymond Moore |
| 17 Sep | Pacific Southwest Open Los Angeles, United States Group A Hard – $75,000 – 64S/32D Singles – Doubles | Jan Kodeš Vladimír Zedník 6–2, 6–4 | Jimmy Connors Ilie Năstase | Raúl Ramírez Ilie Năstase | Stan Smith Charlie Pasarell Ken Rosewall Raymond Moore |
| 24 Sep | Pacific Coast Championships San Francisco, United States Group B Hard – $50,000 – 32S/16D Singles – Doubles | Roy Emerson 5–7, 6–1, 6–4 | Björn Borg | Raymond Moore Arthur Ashe | Stan Smith Tom Gorman Roscoe Tanner John Alexander |
| 24 Sep | Pacific Coast Championships San Francisco, United States Group B Hard – $50,000 – 32S/16D Singles – Doubles | Roy Emerson Stan Smith 6–2, 6–1 | Ove Bengtson Jim McManus | Raymond Moore Arthur Ashe | Stan Smith Tom Gorman Roscoe Tanner John Alexander |
| 24 Sep | Tam International Chicago, United States Group B Carpet (i) – 32S/16D | Tom Okker 3–6, 7–6, 6–3 | John Newcombe | Ilie Năstase Marty Riessen | Graham Stilwell Gerald Battrick Eddie Dibbs Brian Gottfried |
| 24 Sep | Tam International Chicago, United States Group B Carpet (i) – 32S/16D | Owen Davidson John Newcombe 6–7, 7–6, 7–6 | Gerald Battrick Graham Stilwell | Ilie Năstase Marty Riessen | Graham Stilwell Gerald Battrick Eddie Dibbs Brian Gottfried |

### October

| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
| 1 Oct | Fort Worth Open Fort Worth, United States Group B Hard – 32S/16D | Eddie Dibbs 7–5, 6–2, 6–4 | Brian Gottfried | Jaime Fillol Roscoe Tanner | Phil Dent Harold Solomon Andrew Pattison John Newcombe |
| 1 Oct | Fort Worth Open Fort Worth, United States Group B Hard – 32S/16D | Brian Gottfried Dick Stockton 7–6, 6–4 | Owen Davidson John Newcombe | Jaime Fillol Roscoe Tanner | Phil Dent Harold Solomon Andrew Pattison John Newcombe |
| 1 Oct | Quebec Open Quebec, Canada Group B 32S/16D | Jimmy Connors 6–1, 6–1, 6–7, 6–0 | Marty Riessen | Mark Cox Kjell Johansson | Onny Parun Raymond Moore Clark Graebner Tenny Svensson |
| 1 Oct | Quebec Open Quebec, Canada Group B 32S/16D | Bob Carmichael Frew McMillan 6–2, 7–6 | Jimmy Connors Marty Riessen | Mark Cox Kjell Johansson | Onny Parun Raymond Moore Clark Graebner Tenny Svensson |
| 1 Oct | Osaka Open Osaka, Japan Group C Hard – 32S/16D | Ken Rosewall 6–2, 6–4 | Toshiro Sakai | Cliff Drysdale Željko Franulović | Jun Kuki Milan Holeček Paul Kronk Sherwood Stewart |
| 1 Oct | Osaka Open Osaka, Japan Group C Hard – 32S/16D | Jeff Borowiak Tom Gorman 6–4, 7–6 | Jun Kamiwazumi Ken Rosewall | Cliff Drysdale Željko Franulović | Jun Kuki Milan Holeček Paul Kronk Sherwood Stewart |
| 8 Oct | Trofeo Conde de Godó Barcelona, Spain Group A Clay – 58S/32D Singles – Doubles | Ilie Năstase 2–6, 6–1, 8–6, 6–4 | Manuel Orantes | Jan Kodeš Björn Borg | José Higueras Barry Phillips-Moore Andrew Pattison Buster Mottram |
| 8 Oct | Trofeo Conde de Godó Barcelona, Spain Group A Clay – 58S/32D Singles – Doubles | Ilie Năstase Tom Okker 4–6, 6–3, 6–2 | Antonio Muñoz Manuel Orantes | Jan Kodeš Björn Borg | José Higueras Barry Phillips-Moore Andrew Pattison Buster Mottram |
| 8 Oct | Japan Open Tennis Championships Tokyo, Japan Group B 48S/24D | Ken Rosewall 6–1, 6–4 | John Newcombe | Hans-Jürgen Pohmann Cliff Drysdale | Colin Dibley Brian Gottfried Jeff Borowiak Kim Warwick |
| 8 Oct | Japan Open Tennis Championships Tokyo, Japan Group B 48S/24D | Mal Anderson Ken Rosewall 7–5, 7–5 | Colin Dibley Allan Stone | Hans-Jürgen Pohmann Cliff Drysdale | Colin Dibley Brian Gottfried Jeff Borowiak Kim Warwick |
| 15 Oct | Trofeo Melia Madrid, Spain Group A Clay – 64S/31D | Tom Okker 4–6, 6–3, 6–3, 7–5 | Jaime Fillol | Ilie Năstase Buster Mottram | Nikola Pilić José Higueras Rod Laver Pierre Barthès |
| 15 Oct | Trofeo Melia Madrid, Spain Group A Clay – 64S/31D | Ilie Năstase Tom Okker 6–3, 6–0 | Bob Carmichael Frew McMillan | Ilie Năstase Buster Mottram | Nikola Pilić José Higueras Rod Laver Pierre Barthès |
| 15 Oct | Indian Open New Delhi, India Group B 32S/16D | Vijay Amritraj 6–4, 5–7, 8–9, 6–3, 11–9 | Mal Anderson | Raúl Ramírez Mike Estep | Ian Fletcher Fred Stolle Paul Gerken Jasjit Singh |
| 15 Oct | Indian Open New Delhi, India Group B 32S/16D | Jim McManus Raúl Ramírez 6–2, 6–4 | Anand Amritraj Vijay Amritraj | Raúl Ramírez Mike Estep | Ian Fletcher Fred Stolle Paul Gerken Jasjit Singh |
| 15 Oct | Milo International Tennis Classic Manila, the Philippines Group C 32S/16D | Ross Case 6–1, 6–0 | Geoff Masters | John Newcombe Colin Dibley | Milan Holeček Jürgen Fassbender Hans-Jürgen Pohmann Allan Stone |
| 15 Oct | Milo International Tennis Classic Manila, the Philippines Group C 32S/16D | Marcelo Lara Sherwood Stewart 4–6, 7–5, 7–6 | Jürgen Fassbender Hans-Jürgen Pohmann | John Newcombe Colin Dibley | Milan Holeček Jürgen Fassbender Hans-Jürgen Pohmann Allan Stone |
| 22 Oct | Aryamehr Cup Tehran, Iran Group A Clay – 48S/21D | Raúl Ramírez 6–7, 6–1, 7–5, 6–3 | John Newcombe | Željko Franulović Rod Laver | Ilie Năstase Syd Ball Hans-Jürgen Pohmann Bob Giltinan |
| 22 Oct | Aryamehr Cup Tehran, Iran Group A Clay – 48S/21D | Rod Laver John Newcombe 7–6, 6–2 | Ross Case Geoff Masters | Željko Franulović Rod Laver | Ilie Năstase Syd Ball Hans-Jürgen Pohmann Bob Giltinan |
| 22 Oct | Czechoslovakian Championships Prague, Czechoslovakia Group C Clay – 32S/16D | Jiří Hřebec 4–6, 6–1, 3–6, 6–0, 7–5 | Jan Kodeš | Jan Písecký Ove Bengtson | Vladimír Zedník František Pála Barry Phillips-Moore Kjell Johansson |
| 22 Oct | Czechoslovakian Championships Prague, Czechoslovakia Group C Clay – 32S/16D | Jan Kodeš Vladimír Zedník 7–6, 7–6 | Róbert Machán Balázs Taróczy | Jan Písecký Ove Bengtson | Vladimír Zedník František Pála Barry Phillips-Moore Kjell Johansson |
| 29 Oct | Jean Becker Open Paris, France Group B Hard (i) – $50,000 – 48S/23D Singles – Doubles | Ilie Năstase 4–6, 6–1, 3–6, 6–0, 6–2 | Stan Smith | Tom Okker Karl Meiler | Jean-Baptiste Chanfreau Arthur Ashe Roscoe Tanner Leif Johansson |
| 29 Oct | Jean Becker Open Paris, France Group B Hard (i) – $50,000 – 48S/23D Singles – Doubles | Juan Gisbert Sr. Ilie Năstase 6–4, 6–4 | Arthur Ashe Roscoe Tanner | Tom Okker Karl Meiler | Jean-Baptiste Chanfreau Arthur Ashe Roscoe Tanner Leif Johansson |
| 29 Oct | Indonesia Open Jakarta, Indonesia Group C 32S/16D | John Newcombe 7–6, 7–6, 6–3 | Ross Case | Ian Fletcher Jürgen Fassbender | Marcelo Lara Ray Keldie Gondo Widjojo Allan Stone |
| 29 Oct | Indonesia Open Jakarta, Indonesia Group C 32S/16D | Mike Estep Ian Fletcher 7–5, 6–4 | John Newcombe Allan Stone | Ian Fletcher Jürgen Fassbender | Marcelo Lara Ray Keldie Gondo Widjojo Allan Stone |
| 29 Oct | Viceroy Classic Hong Kong Group C Hard – 32S/16D Singles – Doubles | Rod Laver 6–3, 3–6, 6–2, 6–2 | Charlie Pasarell | Anand Amritraj Fred Stolle | Paul Gerken Mal Anderson Brian Gottfried Raúl Ramírez |
| 29 Oct | Viceroy Classic Hong Kong Group C Hard – 32S/16D Singles – Doubles | Colin Dibley Rod Laver 6–3, 5–7, 17–15 | Paul Gerken Brian Gottfried | Anand Amritraj Fred Stolle | Paul Gerken Mal Anderson Brian Gottfried Raúl Ramírez |

### November

| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
| 5 Nov | Stockholm Open Stockholm, Sweden Group A Hard (i) – 48S/24D Singles – Doubles | Tom Gorman 6–3, 4–6, 7–6$^{(7–5)}$ | Björn Borg | Tom Okker Jimmy Connors | Stan Smith Arthur Ashe Manuel Orantes Nikola Pilić |
| 5 Nov | Stockholm Open Stockholm, Sweden Group A Hard (i) – 48S/24D Singles – Doubles | Jimmy Connors Ilie Năstase 6–3, 6–7, 6–2 | Bob Carmichael Frew McMillan | Tom Okker Jimmy Connors | Stan Smith Arthur Ashe Manuel Orantes Nikola Pilić |
| 5 Nov | Australian Indoor Championships Sydney, Australia Group B Hard (i) – 32S/16D Singles – Doubles | Rod Laver 3–6, 7–5, 6–3, 3–6, 6–4 | John Newcombe | Phil Dent Ken Rosewall | Geoff Masters Ross Case Sherwood Stewart Raúl Ramírez |
| 5 Nov | Australian Indoor Championships Sydney, Australia Group B Hard (i) – 32S/16D Singles – Doubles | Rod Laver John Newcombe 7–6, 6–2 | Mal Anderson Ken Rosewall | Phil Dent Ken Rosewall | Geoff Masters Ross Case Sherwood Stewart Raúl Ramírez |
| 12 Nov | Dewar Cup London, Great Britain Group B Carpet (i) – 32S/16D | Tom Okker 6–3, 6–4 | Ilie Năstase | Jimmy Connors Mark Cox | Raymond Moore Patrick Proisy Tom Gorman Ion Țiriac |
| 12 Nov | Dewar Cup London, Great Britain Group B Carpet (i) – 32S/16D | Mark Cox Owen Davidson 6–4, 8–6 | Gerald Battrick Graham Stilwell | Jimmy Connors Mark Cox | Raymond Moore Patrick Proisy Tom Gorman Ion Țiriac |
| 12 Nov | Benson & Hedges Classic Christchurch, New Zealand Group C 29S/12D | Fred Stolle 7–6, 6–4, 6–1 | Brian Gottfried | Sherwood Stewart Fred McNair | Allan Stone Dick Dell Mike Estep Jim McManus |
| 12 Nov | Benson & Hedges Classic Christchurch, New Zealand Group C 29S/12D | Anand Amritraj Fred McNair Walkover | Jürgen Fassbender Jeff Simpson | Sherwood Stewart Fred McNair | Allan Stone Dick Dell Mike Estep Jim McManus |
| 19 Nov | South African Championships Johannesburg, South Africa Group A Hard – 32S/16D/16XD | Jimmy Connors 6–4, 7–6, 6–3 | Arthur Ashe | Cliff Drysdale Tom Okker | Byron Bertram Bob Hewitt Jaime Fillol Mark Cox |
| 19 Nov | South African Championships Johannesburg, South Africa Group A Hard – 32S/16D/16XD | Arthur Ashe Tom Okker 6–2, 4–6, 6–2, 6–4 | Lew Hoad Bob Maud | Cliff Drysdale Tom Okker | Byron Bertram Bob Hewitt Jaime Fillol Mark Cox |
| 19 Nov | South African Championships Johannesburg, South Africa Group A Hard – 32S/16D/16XD | Evonne Goolagong Jürgen Fassbender 6–3, 6–2 | Ilana Kloss Bernard Mitton | Cliff Drysdale Tom Okker | Byron Bertram Bob Hewitt Jaime Fillol Mark Cox |
| 19 Nov | South American Championships Buenos Aires, Argentina Group B Clay – 32S/4D Singles | Guillermo Vilas 3–6, 6–7, 6–4, 6–6$^{(5–5)}$ ret. | Björn Borg | Iván Molina Eddie Dibbs | Ion Țiriac Željko Franulović Toma Ovici Jaime Pinto Bravo |
| 19 Nov | South American Championships Buenos Aires, Argentina Group B Clay – 32S/4D Singles | Ricardo Cano Guillermo Vilas 7–6, 6–2 | Patricio Cornejo Iván Molina | Iván Molina Eddie Dibbs | Ion Țiriac Željko Franulović Toma Ovici Jaime Pinto Bravo |
| 26 Nov | Davis Cup Final Cleveland, United States – carpet | Australia 5–0 | United States | Romania Czechoslovakia | |

### December

| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
| 3 Dec | Commercial Union Assurance Masters Boston, United States Hard (i) – $50,000 – 8S Singles | Ilie Năstase 6–3, 7–5, 4–6, 6–3 | Tom Okker | Jimmy Connors John Newcombe | Round robin Jan Kodeš Tom Gorman Stan Smith Manuel Orantes |

## Grand Prix points system

The tournaments listed above were divided into four groups. Group AA consisted of the Triple Crown – the French Open, the Wimbledon Championships and the US Open – while the other tournaments were divided into Groups A, B and C by prize money and draw size. Points were allocated based on these groups and the finishing position of a player in a tournament. No points were awarded to first round losers and ties were settled by the number of tournaments played. The points allocation is listed below:
Group AA :
* Champion: 100
* Runner-up: 75
* Semifinalist: 50
* Quarterfinalist: 25
* Fourth Round: 12
* Third Round: 6
* Second Round: 3
Group A :
* Champion: 60
* Runner-up: 40
* Semifinalist: 30
* Quarterfinalist: 15
* 9th – 16th: 7
* 17th – 32nd: 3
* 33rd – 64th: 1
Group B :
* Champion: 40
* Runner-up: 30
* Semifinalist: 20
* 5th – 8th: 10
* 9th – 16th: 5
* 17th – 32nd: 2
Group C :
* Champion: 20
* Runner-up: 15
* Semifinalist: 10
* 5th – 8th: 5
* 9th – 16th: 3
* 17th – 32nd: 1

## Grand Prix rankings

1) Ilie Năstase 610 points, 2) John Newcombe 512.5 points, 3) Tom Okker 498 points, 4) Jimmy Connors 383 points, 5) Manuel Orantes 358.5 points, 6) Jan Kodeš 315 points, 7) Stan Smith 274 points, 8) Tom Gorman 270 points, 9) Björn Borg 240 points, 10) Arthur Ashe 236 points, 11) Rod Laver 230 points, 12) Nikki Pilic 210 points, 13) Jaime Fillol 203 points, 14) Raúl Ramírez 186.5 points, 15) Onny Parun 177 points, 16) Vijay Amritraj 169.5 points, 17) Ken Rosewall 169 points, 18) Eddie Dibbs 155 points, 19) Karl Meiler 155 points, 20) Marty Riessen 141 points, 21) Alex Metreveli 141 points, 22) Jiří Hřebec 131 points, 23) Ross Case 126 points, 24) Roger Taylor 126 points, 25) Guillermo Vilas 121 points, 26) Adriano Panatta 119 points, 27) Brian Gottfried 118 points, 28) Mark Cox 118 points, 29) Jürgen Fassbender 115 points, 30) Charles Pasarell 112 points, 31) Cliff Drysdale 112 points, 32) Paolo Bertolucci 104 points, 33) Geoff Masters 100 points, 34) Ray Moore 98 points, 35) John Alexander 98 points

## ATP rankings

On 23 August 1973 the Association of Tennis Professionals published its first list of computer rankings, using points averages rather than points totals in their calculations. These are the ATP rankings of the top twenty singles players in the first list and at the end of the 1973 season, with numbers of ranking points, points averages, numbers of tournaments played, year-end rankings in 1973, highest and lowest positions during the season and number of spots gained or lost from the first rankings to the year-end rankings.
As of 23 August 1973 :
| Rk | Name |
| 1 | Ilie Năstase (ROM) |
| 2 | Manuel Orantes (ESP) |
| 3 | Stan Smith (USA) |
| 4 | Arthur Ashe (USA) |
| 5 | Rod Laver (AUS) |
| 6 | Ken Rosewall (AUS) |
| 7 | John Newcombe (AUS) |
| 8 | Adriano Panatta (ITA) |
| 9 | Tom Okker (NED) |
| 10 | Jimmy Connors (USA) |
| 11 | Jan Kodeš (TCH) |
| 12 | Paolo Bertolucci (ITA) |
| 13 | Roger Taylor (GBR) |
| 14 | Marty Riessen (USA) |
| 15 | Tom Gorman (USA) |
| 16 | Nikola Pilić (YUG) |
| 17 | Cliff Richey (USA) |
| 18 | Mark Cox (GBR) |
| 19 | Roy Emerson (AUS) |
| 20 | Karl Meiler (FRG) |
Year-end rankings 1973 (14 December 1973) :
| Rk | Name | High | Low | Change |
| 1 | Ilie Năstase (ROM) | 1 | | = |
| 2 | John Newcombe (AUS) | 2 | 7 | 5 |
| 3 | Jimmy Connors (USA) | 3 | 10 | 7 |
| 4 | Tom Okker (NED) | 4 | 9 | 5 |
| 5 | Stan Smith (USA) | 3 | 5 | 2 |
| 6 | Ken Rosewall (AUS) | 6 | 7 | = |
| 7 | Manuel Orantes (ESP) | 2 | 7 | 5 |
| 8 | Rod Laver (AUS) | 5 | 10 | 3 |
| 9 | Jan Kodeš (TCH) | 5 | 11 | 2 |
| 10 | Arthur Ashe (USA) | 4 | 10 | 6 |
| 11 | Tom Gorman (USA) | | | |
| 12 | Roy Emerson (AUS) | | | |
| 13 | Marty Riessen (USA) | | | |
| 14 | Adriano Panatta (ITA) | | | |
| 15 | Nikola Pilić (YUG) | | | |
| 16 | Roger Taylor (GBR) | | | |
| 17 | Jaime Fillol (CHI) | | | |
| 18 | Björn Borg (SWE) | | | |
| 19 | Cliff Richey (USA) | | | |
| 20 | Paolo Bertolucci (ITA) | | | |