Tour · 1968-04-08 · draw of 32
St. Petersburg 1968
ClayFinal
| 🇨🇦 Mike Belkin | d. | 🇨🇱 Jaime Fillol Sr. | 2-6 6-0 7-5 6-4 | H2H |
Semifinals
| 🇨🇱 Jaime Fillol Sr. | d. | 🇷🇸 Boro Jovanovic | 6-2 6-0 | H2H |
| 🇨🇦 Mike Belkin | d. | 🇦🇺 Bill Bowrey | 6-3 6-3 | H2H |
Quarterfinals
| 🇷🇸 Boro Jovanovic | d. | 🇺🇸 Cliff Richey | 6-3 6-1 | H2H |
| 🇨🇱 Jaime Fillol Sr. | d. | 🇺🇸 Allen Fox | 6-4 6-3 | H2H |
| 🇦🇺 Bill Bowrey | d. | 🇺🇸 Dave Shibley | 6-4 6-3 | H2H |
| 🇨🇦 Mike Belkin | d. | 🇬🇧 Michael Sangster | 6-0 6-0 | H2H |
Round of 16
| 🇺🇸 Dave Shibley | d. | 🇺🇸 Paul Thompson | 2-6 8-6 6-1 | H2H |
| 🇬🇧 Michael Sangster | d. | 🇪🇨 Miguel Olvera | 6-4 1-6 6-4 | H2H |
| 🇺🇸 Cliff Richey | d. | 🇧🇷 Alcides Procopio Jr. | 6-1 6-1 | H2H |
| 🇷🇸 Boro Jovanovic | d. | 🇿🇦 Pat Cramer | 7-5 5-7 6-3 | H2H |
| 🇺🇸 Allen Fox | d. | 🇨🇱 Andres Hammersley | 6-4 6-3 | H2H |
| 🇨🇱 Jaime Fillol Sr. | d. | 🇺🇸 Don Bitler | 6-3 6-1 | H2H |
| 🇦🇺 Bill Bowrey | d. | 🇺🇸 Bob Sprengelmeyer | 6-2 6-1 | H2H |
| 🇨🇦 Mike Belkin | d. | 🇸🇪 Sven Ginman | 12-10 6-3 | H2H |
Round of 32
| 🇺🇸 Paul Thompson | d. | 🇪🇨 Pancho J.F. Guzman | W/O | H2H |
| 🇺🇸 Bob Sprengelmeyer | d. | Richard Russell | 6-0 6-1 | H2H |
| 🇺🇸 Dave Shibley | d. | 🇺🇸 Woody Blocher | W/O | H2H |
| 🇬🇧 Michael Sangster | d. | 🇨🇱 Esteban Fillol | 6-1 6-3 | H2H |
| 🇧🇷 Alcides Procopio Jr. | d. | 🇺🇸 Tom James | 9-7 6-3 | H2H |
| 🇪🇨 Miguel Olvera | d. | 🇺🇸 Carl Johnson | 6-0 6-1 | H2H |
| 🇷🇸 Boro Jovanovic | d. | 🇺🇸 Mike Reilly | 6-1 6-1 | H2H |
| 🇨🇱 Andres Hammersley | d. | 🇺🇸 Jim Lewallen | 6-4 6-3 | H2H |
| 🇸🇪 Sven Ginman | d. | 🇺🇸 Ed Turville | 6-3 6-4 | H2H |
| 🇺🇸 Allen Fox | d. | 🇺🇸 Roy Sprengelmeyer | 6-1 6-1 | H2H |
| 🇨🇱 Jaime Fillol Sr. | d. | 🇧🇷 Roberto Marcher | 8-6 6-1 | H2H |
| 🇿🇦 Pat Cramer | d. | 🇺🇸 Sam Vuille | 6-1 6-0 | H2H |
| 🇦🇺 Bill Bowrey | d. | 🇺🇸 Stan Shanbron | 6-3 6-3 | H2H |
| 🇺🇸 Don Bitler | d. | 🇺🇸 Ben Bishop | 4-6 6-4 6-1 | H2H |