Tour · 1971-03-28 · draw of 32
San Juan 1971
HardFinal
| 🇺🇸 Stan Smith | d. | 🇺🇸 Cliff Richey | 6-3 6-3 | H2H |
Semifinals
| 🇺🇸 Stan Smith | d. | 🇺🇸 Tom Gorman | 6-4 6-2 | H2H |
| 🇺🇸 Cliff Richey | d. | 🇺🇸 Clark Graebner | 7-6 6-1 | H2H |
Quarterfinals
| 🇺🇸 Stan Smith | d. | 🇺🇸 Erik Van Dillen | 6-3 6-7 6-3 | H2H |
| 🇺🇸 Cliff Richey | d. | 🇲🇽 Joaquin Loyo-Mayo | 6-3 6-3 | H2H |
| 🇺🇸 Clark Graebner | d. | 🇬🇧 Gerald Battrick | 6-3 6-2 | H2H |
| 🇺🇸 Tom Gorman | d. | 🇺🇸 Frank Froehling | 6-4 6-3 | H2H |
Round of 16
| 🇺🇸 Erik Van Dillen | d. | 🇺🇸 E. Victor Seixas | 6-2 6-2 | H2H |
| 🇺🇸 Stan Smith | d. | 🇨🇿 Milan Holecek | 7-5 7-6 | H2H |
| 🇺🇸 Cliff Richey | d. | 🇳🇿 Onny Parun | 6-4 7-6 | H2H |
| 🇲🇽 Joaquin Loyo-Mayo | d. | 🇬🇧 Peter Curtis | 7-5 7-5 | H2H |
| 🇺🇸 Clark Graebner | d. | 🇨🇱 Luis Ayala | 6-1 6-4 | H2H |
| 🇺🇸 Tom Gorman | d. | 🇷🇸 Nicola Spear | 6-7 6-4 6-4 | H2H |
| 🇺🇸 Frank Froehling | d. | 🇭🇷 Zeljko Franulovic | 6-3 0-6 6-2 | H2H |
| 🇬🇧 Gerald Battrick | d. | 🇺🇸 Jim McManus | 4-6 6-3 6-0 | H2H |
Round of 32
| 🇺🇸 Erik Van Dillen | d. | 🇨🇿 Vladimir Zednik | 6-4 6-3 | H2H |
| 🇷🇸 Nicola Spear | d. | Richard Russell | 6-3 4-6 6-4 | H2H |
| 🇺🇸 Stan Smith | d. | 🇺🇸 Lenny Schloss | 6-0 6-1 | H2H |
| 🇺🇸 E. Victor Seixas | d. | 🇨🇦 Mike Belkin | 5-7 6-3 6-4 | H2H |
| 🇺🇸 Cliff Richey | d. | 🇺🇸 Morton Stern | 6-0 6-0 | H2H |
| 🇳🇿 Onny Parun | d. | 🇮🇹 Martin Mulligan | 6-3 7-6 | H2H |
| 🇺🇸 Jim McManus | d. | 🇺🇸 Donald Dell | 6-3 6-4 | H2H |
| 🇲🇽 Joaquin Loyo-Mayo | d. | 🇦🇺 Ray Keldie | 6-3 6-3 | H2H |
| 🇨🇿 Milan Holecek | d. | 🇦🇺 Terry Addison | 7-6 6-1 | H2H |
| 🇺🇸 Clark Graebner | d. | 🇦🇹 Hans Kary | 6-7 6-1 6-0 | H2H |
| 🇺🇸 Tom Gorman | d. | Miguel Braschi | 6-1 6-4 | H2H |
| 🇺🇸 Frank Froehling | d. | 🇺🇸 Tom Edlefsen | 7-6 6-1 | H2H |
| 🇭🇷 Zeljko Franulovic | d. | Juan Ortiz | 6-2 6-2 | H2H |
| 🇬🇧 Peter Curtis | d. | 🇺🇸 Jim Osborne | W/O | H2H |
| 🇬🇧 Gerald Battrick | d. | Freddie De Jesus | 6-3 6-3 | H2H |
| 🇨🇱 Luis Ayala | d. | 🇪🇨 Pancho J.F. Guzman | W/O | H2H |