Tour · 1970-03-30 · draw of 64
San Juan 1970
HardFinal
| 🇺🇸 Arthur Ashe | d. | 🇺🇸 Cliff Richey | 6-4 6-3 1-6 6-3 | H2H |
Semifinals
| 🇺🇸 Cliff Richey | d. | 🇺🇸 Jim McManus | 6-2 6-3 | H2H |
| 🇺🇸 Arthur Ashe | d. | 🇺🇸 Clark Graebner | W/O | H2H |
Quarterfinals
| 🇺🇸 Cliff Richey | d. | 🇭🇷 Zeljko Franulovic | 6-2 6-4 | H2H |
| 🇺🇸 Jim McManus | d. | 🇷🇸 Nicola Spear | 6-4 6-0 | H2H |
| 🇺🇸 Clark Graebner | d. | 🇦🇺 Bob Carmichael | 7-5 7-5 | H2H |
| 🇺🇸 Arthur Ashe | d. | 🇨🇱 Luis Ayala | 6-1 6-3 | H2H |
Round of 16
| 🇷🇸 Nicola Spear | d. | 🇧🇷 Octavio Piva | 6-0 6-1 | H2H |
| 🇺🇸 Cliff Richey | d. | 🇨🇿 Jan Kodes | 6-2 6-2 | H2H |
| 🇺🇸 Jim McManus | d. | 🇩🇪 Christian Kuhnke | 6-3 10-8 | H2H |
| 🇺🇸 Clark Graebner | d. | 🇬🇧 Gerald Battrick | 0-6 10-8 7-5 | H2H |
| 🇭🇷 Zeljko Franulovic | d. | 🇳🇿 Brian Fairlie | 6-3 10-8 | H2H |
| 🇦🇺 Bob Carmichael | d. | 🇺🇸 Charlie Pasarell | 6-2 6-4 | H2H |
| 🇨🇱 Luis Ayala | d. | 🇩🇪 Ingo Buding | 7-5 7-9 7-5 | H2H |
| 🇺🇸 Arthur Ashe | d. | 🇪🇸 Juan Gisbert Sr | 6-2 5-7 6-4 | H2H |
Round of 32
| 🇷🇸 Nicola Spear | d. | 🇩🇪 Hans-Joachim Ploetz | 7-5 6-4 | H2H |
| 🇺🇸 Cliff Richey | d. | 🇫🇷 Bernard Paul | 6-1 6-3 | H2H |
| 🇧🇷 Octavio Piva | d. | 🇺🇸 Stan Smith | W/O | H2H |
| 🇺🇸 Charlie Pasarell | d. | 🇦🇺 Ray Keldie | 6-2 9-7 | H2H |
| 🇺🇸 Jim McManus | d. | 🇭🇺 Szabolcz Baranyi | 6-1 6-2 | H2H |
| 🇩🇪 Christian Kuhnke | d. | D. Richard Russell | 9-11 7-5 6-3 | H2H |
| 🇨🇿 Jan Kodes | d. | 🇬🇧 Peter Curtis | 7-5 6-3 | H2H |
| 🇺🇸 Clark Graebner | d. | 🇭🇺 Peter Szoke | 6-1 6-2 | H2H |
| 🇪🇸 Juan Gisbert Sr | d. | 🇺🇸 Tom Gorman | 6-4 6-3 | H2H |
| 🇭🇷 Zeljko Franulovic | d. | 🇺🇸 E. Victor Seixas | 7-5 6-4 | H2H |
| 🇳🇿 Brian Fairlie | d. | 🇦🇺 Terry Addison | 10-8 6-3 | H2H |
| 🇦🇺 Bob Carmichael | d. | 🇳🇿 Onny Parun | 8-6 8-6 | H2H |
| 🇩🇪 Ingo Buding | d. | 🇺🇸 Tom Edlefsen | 5-7 6-1 6-2 | H2H |
| 🇬🇧 Gerald Battrick | d. | 🇲🇽 Joaquin Loyo-Mayo | 6-3 6-1 | H2H |
| 🇨🇱 Luis Ayala | d. | 🇺🇸 Roy Barth | 6-4 3-6 6-0 | H2H |
| 🇺🇸 Arthur Ashe | d. | Lance Lumsden | 6-0 6-0 | H2H |
Round of 64
| 🇭🇺 Peter Szoke | d. | Juan Ortiz | 6-1 6-0 | H2H |
| 🇺🇸 E. Victor Seixas | d. | Miguel Braschi | 6-1 6-4 | H2H |
| 🇺🇸 Charlie Pasarell | d. | Bobby Odasz | 6-1 7-5 | H2H |
| 🇳🇿 Onny Parun | d. | 🇺🇸 Dick Dell | 4-6 16-14 6-1 | H2H |
| 🇲🇽 Joaquin Loyo-Mayo | d. | 🇨🇴 William Alvarez | 6-4 5-7 6-4 | H2H |
| 🇦🇺 Ray Keldie | d. | 🇵🇭 Eddie Cruz | 6-3 6-2 | H2H |
| 🇭🇷 Zeljko Franulovic | d. | Freddie De Jesus | 11-9 4-6 6-3 | H2H |
| 🇳🇿 Brian Fairlie | d. | 🇯🇵 Jun Kuki | 6-3 6-3 | H2H |
| 🇬🇧 Peter Curtis | d. | 🇺🇸 Jim Osborne | 4-6 6-1 6-3 | H2H |
| 🇦🇺 Bob Carmichael | d. | Tico Carrero | 7-9 6-2 6-4 | H2H |
| 🇬🇧 Gerald Battrick | d. | Juan Alberto Rios | 6-3 6-2 | H2H |
| 🇦🇺 Terry Addison | d. | 🇺🇸 Morton Stern | 6-3 6-2 | H2H |