Gstaad 1978 ATP
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Guillermo Vilas | d. | Jose Luis Clerc | 6-3 7-6 6-4 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Guillermo Vilas | d. | Jeff Borowiak | 6-3 6-3 4-6 7-6 |
| Jose Luis Clerc | d. | Ulrich Pinner | 7-5 2-0 RET |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Guillermo Vilas | d. | Heinz Gunthardt | 6-3 6-2 |
| Jeff Borowiak | d. | Belus Prajoux | 7-6 6-4 |
| Ulrich Pinner | d. | Cliff Letcher | 6-4 7-6 |
| Jose Luis Clerc | d. | Tom Okker | 6-4 6-3 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Guillermo Vilas | d. | David Carter | 6-4 6-2 |
| Heinz Gunthardt | d. | Rolf Thung | 6-3 7-5 |
| Belus Prajoux | d. | Mark Edmondson | 3-6 6-3 8-7 RET |
| Jeff Borowiak | d. | Louk Sanders | 7-6 6-2 |
| Ulrich Pinner | d. | Andreas Maurer | 7-5 7-6 |
| Cliff Letcher | d. | Colin Dowdeswell | 6-4 6-2 |
| Tom Okker | d. | Bob Hewitt | 7-6 6-3 |
| Jose Luis Clerc | d. | Hans Kary | 6-1 7-5 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Guillermo Vilas | d. | Georges Goven | 6-4 6-4 |
| David Carter | d. | Jurgen Fassbender | 6-2 6-3 |
| Rolf Thung | d. | Roland Stadler | 6-2 6-4 |
| Heinz Gunthardt | d. | Jiri Granat | 6-2 6-2 |
| Mark Edmondson | d. | Kim Warwick | 7-5 6-3 |
| Belus Prajoux | d. | Lito Alvarez | 6-3 6-3 |
| Louk Sanders | d. | John Feaver | 3-6 6-3 6-4 |
| Jeff Borowiak | d. | Jean Francois Caujolle | 6-1 6-2 |
| Andreas Maurer | d. | Chris Lewis | 6-4 6-1 |
| Ulrich Pinner | d. | Pavel Hutka | 6-2 6-4 |
| Colin Dowdeswell | d. | Nikola Pilic | 6-3 7-6 |
| Cliff Letcher | d. | Zeljko Franulovic | 7-6 7-5 |
| Tom Okker | d. | Carlos Kirmayr | 6-3 4-6 7-5 |
| Bob Hewitt | d. | Onny Parun | 6-4 1-6 6-0 |
| Hans Kary | d. | Mike Fishbach | 3-6 6-0 6-0 |
| Jose Luis Clerc | d. | Vladimir Zednik | 6-2 6-1 |