Date | Tournament | Winner | Finalist | Semifinalist | Quarterfinalist |
31 December – 5 January[1] | East India Championships Madras, India Singles – Doubles | Ilie Năstase 4–6 6–2 6–3 7–5 | Premjit Lall | Viorel Marcu Mieczysław Rybarczyk | |
| |
31 December -5 January[2] | Western Province Championships Cape Town, South Africa Singles - Doubles | Bob Hewitt 6–4 8–6 | Robert Maud | Bob Carmichael Mark Cox | Gerald Battrick Jurgen Fassbender Andrew Pattison Hans-Jürgen Pohmann |
| |
30 Dec | Tasmanian Open Championships[3] Hobart, Australia Grass | Fred Stolle 6–3, 0–6, 6–4, 6–1 | Tony Roche | Mal Anderson Roger Taylor | Toomas Leius Ray Ruffels Bill Bowrey Frank Sedgman |
| |
30 Dec | Western Australian Open[4] Perth, Australia Grass | Marty Riessen 6–3, 6–4, 2–6, 2–6, 6–1 | Ken Rosewall | John Alexander Phil Dent | Anthony Hammond Peter Rigg Rob Kilderry Phil Holten |
| |
4 Jan | North Island Championships Hamilton, New Zealand Singles – Doubles | Brian Fairlie 6–2 8–6 | Onny Parun | Hank Irvine David B. Hawkes | Tony Bardsley |
| |
5 Jan | Manly Seaside Championships Sydney, Australia Singles – Doubles | Manuel Orantes 6–2 8–6 | Ray Keldie | Bob Giltinan Geoff Pollard | Jean-Baptiste Chanfreau Vittorio Crotta Massimo Di Domenico Antonio Muñoz |
| |
6–12 January[5] | Orange Free State Championships Bloemfontein, South Africa Singles – Doubles | Mark Cox 6–2 7–5 | Robert Maud | Frew McMillan John Yuill | Gerald Battrick Bob Hewitt Rauty Krog Andrew Pattison |
| |
31 December-12 January[6] | New Zealand Championships Wellington, New Zealand Singles – Doubles | Brian Fairlie 6–4 3–6 6–3 6–1 | Onny Parun | Dave Simmonds Richard Hawkes | Tony Bardsley Howard Broun Peter Burwash John Lockington |
| |
5–12 January[7] | Eastern Province Championships Port Elizabeth, South Africa Singles – Doubles | Bob Hewitt 6–3 8-10 6–4 | Mark Cox | Bob Carmichael Robert Maud | Frew McMillan Hans-Joachim Plötz Terry Ryan Jackie Saul |
| |
5-12 January[8] | Indian International Championships New Delhi, India Singles – Doubles | Ilie Năstase 6–4 6–2 4–6 6–4 | Premjit Lall | Shiv Prakash Misra Bill Tym | Martin Carlstein Sever Dron Shyam Minotra Gaurav Misra |
| |
6 Jan | Victorian Open[9] Melbourne, Australia Grass | Stan Smith 14–12, 6–8, 6–3, 8–6 | Arthur Ashe | Charlie Pasarell Ray Ruffels | Toomas Leius Bill Bowrey Barry Phillips-Moore Bob Lutz |
| |
13-19 January[10] | New South Wales Open Sydney, Australia Singles – Doubles | Tony Roche 6–4, 4–6, 9–7, 12–10 | Rod Laver | John Newcombe Ken Rosewall | Roger Taylor Pancho Gonzales Andrés Gimeno Roy Emerson |
Rod Laver Roy Emerson 10–12, 6–4, 6–3 | Tony Roche John Newcombe |
20-26 January[11] | All India Hard Court Championships Gauhati, India Singles – Doubles | Ilie Năstase 4-6 6-2 6-3 7-5 | Premjit Lall | Anand Amritraj Martin Carlstein | Taghi Akbari Sever Dron Mieczysław Rybarczyk Bill Tym |
| |
20 Jan | Cotton Bowl Indoor Dallas, United States Carpet (i) | Barry Conway 6-3 6-0 | Danny Haddox | Jim Hill Earl Van Zandt | Lew Grinnan Eddie Munson Larry Turville Matt Wilson |
| |
20-26 January[12] | West German International Covered Court Championships Cologne, Germany Singles – Doubles | Ove Nils Bengtson 6–3 6–3 6–8 6–4 | Christian Kuhnke | Jean-Claude Barclay Jan Kukal | Gerald Battrick Laszlo Kovacs EgyptIsmail El Shafei Bobby Wilson |
| |
20-26 January[13] | Austin Smith Championships Fort Lauderdale, United States Singles – Doubles | Pat Cramer 6–2 11–9 | Jaime Fillol | Gardnar Mulloy Eduardo Zuleta | Frank Froehling III Pancho Guzmán Walter Johnson Harold Solomon |
| |
20 Jan | Australian Open[14] Brisbane, Australia Grand Slam Grass Singles – Doubles – Mixed doubles | Rod Laver 6–3, 6–4, 7–5 | Andrés Gimeno | Tony Roche Ray Ruffels | Fred Stolle John Newcombe Bill Bowrey Butch Buchholz |
Rod Laver Roy Emerson 6–4, 6–4, 6–4 | Ken Rosewall Fred Stolle |
26 Jan | Omaha International[15] Omaha, United States Hard (i) | Cliff Richey 6–4, 6–2 | Joaquín Loyo-Mayo | Mark Cox Clark Graebner | Torben Ulrich Tom Edlefsen William Brown Robert McKinley |
Cliff Richey Tom Edlefsen 7–5, 6–3 | Mark Cox Jim McManus |