| 1973 World Championship Tennis circuit | |
| Duration: | 15 January 1973 – 9 May 1973 |
| Edition: | 6th |
| Tournaments: | 23 |
| Most Tournament Titles: |  Stan Smith (7) |
| Most Tournament Finals: | Stan Smith (8) |
| Points Leader: | Stan Smith (75) |
| Previous: | 1972 |
| Next: | 1974 |
The 1973 World Championship Tennis circuit was one of the two rival professional male tennis circuits of 1973. It was organized by World Championship Tennis (WCT). In April 1972 WCT signed an agreement with the International Lawn Tennis Federation (ILTF) as a result of which the 1973 men's tennis season was divided in a WCT section, which ran from January until May, and a Grand Prix circuit which was held from May onward. The WCT circuit divided the players into two groups of 32 players, with each group playing 11 tournaments of the 22 tournaments. The four highest ranked players from each group qualified for the season finals in Dallas.[1] The total available prize money was almost $1,250,000.[2]
| Tour Finals | |
| Group A Tournaments | |
| Group B Tournaments |
| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
|---|---|---|---|---|---|
| 6 Feb | U.S. Professional Indoor Philadelphia, United States Group A Carpet – $50,000 – 32S/16D | Stan Smith 7–6(7–2), 7–6(7–5), 4–6, 6–4 | Cliff Richey Dick Stockton  Rod Laver Colin Dibley | ||
| Brian Gottfried Dick Stockton 4–6, 6–3, 6–4 | Roy Emerson Rod Laver | ||||
| 11 Feb | Rothmans International Toronto, Ontario, Canada Group A Carpet – $50,000 – 32S/16D | Rod Laver 6–3, 6–4 | Cliff Richey Allan Stone  Ove Bengtson Dick Stockton | ||
| John Alexander Phil Dent 3–6, 6–4, 6–4, 6–2 | Roy Emerson Rod Laver | ||||
| 12 Feb | Professional Championships Copenhagen, Denmark Group B Carpet – $50,000 – 32S/16D |  Roger Taylor6–2, 6–3, 7–6(7–1) | Mark Cox Jan Kodeš Erik van Dillen Dick Crealy | ||
| Tom Gorman Erik van Dillen 6–4, 6–4 | Mark Cox Graham Stilwell | ||||
| 19 Feb | World Professional Championships Cologne, West Germany Group B Carpet – $50,000 – 32S/16D | Jan Kodeš 6–1, 6–3, 6–1 | Marty Riessen Ken Rosewall  Haroon Rahim Ismail El Shafei | ||
| Mark Cox Graham Stilwell 7–6, 6–3 | Tom Okker Marty Riessen | ||||
| 26 Feb | Kemper International Chicago, United States Group B Carpet – $50,000 – 32S/16D | Arthur Ashe 3–6, 7–6(11–9), 7–6(7–2) | Marty Riessen Tom Okker Ken Rosewall Ray Moore | ||
| Ken Rosewall Fred Stolle 6–7, 6–4, 6–2 |  Ismail El Shafei Brian Fairlie |
| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
|---|---|---|---|---|---|
| 19 Mar | Stan Smith 6–3, 6–4 |  Onny Parun Dick Stockton Allan Stone Robert Maud | |||
| Roy Emerson Rod Laver 7–6, 6–3 | Robert Maud Andrew Pattison | ||||
| Tom Okker 6–3, 6–7(4–7), 7–6(7–3) | Ray Moore Mark Cox Dick Crealy Alex Metreveli | ||||
| Tom Okker Marty Riessen 4–6, 7–6, 6–2 | Arthur Ashe Roscoe Tanner | ||||
| 26 Mar | Holton Tennis Classic St. Louis, United States Group A Carpet – $50,000 – 32S/16D | Stan Smith 6–4, 3–6, 6–4 | John Alexander Gerald Battrick Bob Lutz Cliff Richey | ||
| Ove Nils Bengtson Jim McManus 6–2, 7–5 | Terry Addison Colin Dibley | ||||
| Rothmans International Vancouver, British Columbia, Canada Group B Carpet – $50,000 – 32S/16D | Tom Gorman 3–6, 6–2, 7–5 | Fred Stolle Erik van Dillen  Pierre Barthès Ray Moore | |||
| Pierre Barthès Roger Taylor 5–7, 6–3, 7–6 | Tom Gorman Erik van Dillen |
| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
|---|---|---|---|---|---|
| 2 Apr | River Oaks International Tennis Tournament Houston, United States Group B Clay – $50,000 – 32S/16D | Ken Rosewall 6–4, 6–1, 7–5 | Arthur Ashe Vladimír Zedník Marty Riessen Brian Fairlie | ||
| Tom Okker Marty Riessen 7–5, 7–5 | Arthur Ashe Roscoe Tanner | ||||
| Munich WCT Munich, West Germany Group A Carpet – $50,000 – 32S/16D | Stan Smith 6–1, 7–5 | Robert Lutz Rod Laver Ove Bengtson Dick Stockton | |||
| Nikola Pilić Allan Stone 7–5, 5–7, 6–4 | Cliff Drysdale Cliff Richey | ||||
| 9 Apr | Brussels WCT Brussels, Belgium Group A Carpet – $50,000 – 32S/16D | Stan Smith 6–2, 6–4, 6–1 | Cliff Richey Cliff Drysdale Ove Bengtson John Alexander | ||
| Robert Lutz Stan Smith 6–4, 7–6 | John Alexander Phil Dent | ||||
| Cleveland Tennis Classic Cleveland, United States Group B Carpet – $50,000 – 32S/16D | Ken Rosewall 6–3, 6–4 | Arthur Ashe Jean-Baptiste Chanfreau Marty Riessen Jan Kodeš | |||
| Ken Rosewall Fred Stolle 6–2, 6–3 | Ismail El Shafei Brian Fairlie | ||||
| 16 Apr | Carolinas International Tennis Tournament Charlotte, United States Group B Clay – $50,000 – 32S/16D | Ken Rosewall 6–3, 7–6(7–1) | Tom Gorman Bob Carmichael Željko Franulović Marty Riessen | ||
| Tom Okker Marty Riessen 7–6, 3–6, 6–3 | Tom Gorman Erik van Dillen | ||||
| Johannesburg WCT Johannesburg, South Africa Group A Hard – $50,000 – 32S/16D | Brian Gottfried W/O | Robert Lutz Andrew Pattison Colin Dibley Gerald Battrick | |||
| Robert Lutz Stan Smith 6–1, 6–4, 6–4 | Frew McMillan Allan Stone | ||||
| 23 Apr | United Bank Classic Denver, United States Group B Carpet – $50,000 – 32S/16D | Mark Cox 6–1, 6–1 | Brian Fairlie Marty Riessen Tom Leonard Roger Taylor | ||
| Arthur Ashe Roscoe Tanner 3–6, 6–3, 7–6 | Tom Okker Marty Riessen | ||||
| Swedish Pro Tennis Championships Gothenburg, Sweden Group A Carpet – $50,000 – 32S/16D | Stan Smith 5–7, 6–4, 6–2 | ||||
| Roy Emerson Rod Laver 6–7, 6–4, 6–1 | Nikola Pilić Allan Stone |
| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists | |
|---|---|---|---|---|---|---|
| 3 May | Masters Doubles WCT Montreal, Quebec, Canada Tour Finals Carpet – $200,000 – 8D | Robert Lutz Stan Smith 6–2, 7–6(7–1), 6–0 | Addison / Dibley Pilić / Stone Cox / Stilwell Ashe / Tanner | |||
| 9 May | Stan Smith 6–3, 6–3, 4–6, 6–4 | John Alexander Roy Emerson Marty Riessen Roger Taylor |
| Tour Finals | |
| Regular Tournaments | |
| All titles |
| width=50 | Total | width=200 | Player | Singles | Doubles | Singles | Doubles | Singles | Doubles |
|---|---|---|---|---|---|---|---|---|---|
| 10 | align=left | 1 | 1 | 6 | 2 | 7 | 3 | ||
| 8 | align=left | 3 | 5 | 3 | 5 | ||||
| 6 | align=left | 1 | 5 | 1 | 5 | ||||
| 6 | align=left | 1 | 5 | 1 | 5 | ||||
| 5 | align=left | 3 | 2 | 3 | 2 | ||||
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| Tour Finals | |
| Group A Tournaments | |
| Group B Tournaments | |
| All titles |
| width=50 | Total | width=200 | Nation | Singles | Doubles | Singles | Doubles | Singles | Doubles | Singles | Doubles |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 23 | align=left | 1 | 1 | 7 | 4 | 3 | 7 | 11 | 12 | ||
| 17 | align=left | 4 | 7 | 4 | 2 | 8 | 9 | ||||
| 6 | align=left | 1 | 5 | 1 | 5 | ||||||
| 4 | align=left | 2 | 2 | 2 | 2 | ||||||
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| Qualified for Tour Finals |
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