| Week of | Tournament | Location | Draw | Prize Money | Surface | Winner | Finalist |
| 9 February | U.S. Pro Indoor | Philadelphia, PA, U.S. | 32 | $62,500 | Carpet / indoor |  John Newcombe | Rod Laver |
| 7 March | Australian Open Championships | Sydney, Australia | 64 | $50,000 | Grass / outdoor | Ken Rosewall |  Arthur Ashe |
| 22 March | Sportface International | Chicago, U.S. | 32 | $50,000 | Carpet / indoor | John Newcombe | Arthur Ashe |
| 29 March | Aventura Classic | Miami, U.S. | 32 | $50,000 | Hard / outdoor |  Cliff Drysdale | Rod Laver |
| 26 April | Rawlings Classic | Dallas, U.S. | 32 | $50,000 | Carpet / indoor | John Newcombe | Arthur Ashe |
| 3 May | Italian Open | Rome, Italy | 32 | $50,000 | Clay / outdoor | Rod Laver |  Jan Kodeš |
| 10 May | Aryamehr Cup | Tehran, Iran | 32 | $50,000 | Clay / outdoor | Marty Riessen | John Alexander |
| 7 June | W.D. & H.O. Wills | Bristol, England | 32 | $50,000 | Clay / outdoor | Unfinished | |
| 12 July | Washington Star Open International | Washington, U.S. | 64 | $50,000 | Clay / outdoor | Ken Rosewall | Marty Riessen |
| 19 July | Louisville Classic | Louisville, U.S. | 32 | $50,000 | Clay / outdoor |  Tom Okker | Cliff Drysdale |
| 26 July | Rothmans International | Quebec City, Canada | 32 | $50,000 | Carpet / indoor | Tom Okker | Rod Laver |
| 2 August | U.S. Professional Championships | Boston, U.S. | 32 | $50,000 | Hard / outdoor | Ken Rosewall | Cliff Drysdale |
| 9 August | Rothmans Canadian Open | Toronto, Canada | 64 | $50,000 | Hard / outdoor | John Newcombe | Tom Okker |
| 16 August | Colonial Pro Championships | Fort Worth, U.S. | 32 | $50,000 | Carpet / indoor | Rod Laver | Marty Riessen |
| 27 September | Redwood Bank Pacific Coast Open | Berkeley, USA | 64 | $50,000 | Hard / outdoor | Rod Laver | Ken Rosewall |
| 3 October | Rothmans International | Vancouver, Canada | 32 | $50,000 | Carpet / indoor | Ken Rosewall | Tom Okker |
| 11 October | Profi–Tennis–Weltmeistershaft | Cologne, Germany | 32 | $50,000 | Carpet / indoor | Bob Lutz | Jeff Borowiak |
| 18 October | Spanish Open | Barcelona, Spain | 32 | $50,000 | Clay / outdoor |  Manuel Orantes | Bob Lutz |
| 30 October | Stockholm Open Indoors | Stockholm, Sweden | 32 | $50,000 | Carpet / indoor | Arthur Ashe | Jan Kodeš |
| 8 November | Rothmans Open | Bologna, Italy | 32 | $50,000 | Carpet / indoor | Rod Laver | Arthur Ashe |
| 19 November | Dallas WCT Finals | Houston/Dallas, U.S. | 8 | $100,000 | Carpet / indoor | Ken Rosewall | Rod Laver |
