Napa 1978 ATP
Final
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Arthur Ashe | m. | Bernard Mitton | 6-7 6-1 6-2 |
Semifinal
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Bernard Mitton | m. | John McEnroe | 1-6 6-4 6-4 |
| Arthur Ashe | m. | Roscoe Tanner | 6-4 5-7 7-6 |
Perempat final
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Bernard Mitton | m. | Trey Waltke | 6-4 6-1 |
| John McEnroe | m. | Erik Van Dillen | 6-2 6-1 |
| Arthur Ashe | m. | Eliot Teltscher | 6-4 6-4 |
| Roscoe Tanner | m. | Byron Bertram | 6-0 7-5 |
Babak 16 besar
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Trey Waltke | m. | Sandy Mayer | 1-6 7-6 6-4 |
| Bernard Mitton | m. | Hank Pfister | 7-6 6-4 |
| John McEnroe | m. | Steve Docherty | 7-5 7-6 |
| Erik Van Dillen | m. | Rick Fisher | 3-6 6-4 6-4 |
| Eliot Teltscher | m. | Carlos Kirmayr | 4-6 6-2 6-2 |
| Arthur Ashe | m. | Gene Mayer | 7-6 5-7 6-3 |
| Byron Bertram | m. | Van Winitsky | 6-1 6-2 |
| Roscoe Tanner | m. | John Austin | 7-6 7-6 |
Babak 32 besar
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Sandy Mayer | m. | Peter Pearson | 6-2 6-4 |
| Trey Waltke | m. | Billy Martin | 6-2 6-3 |
| Hank Pfister | m. | Marcello Lara | 6-2 6-3 |
| Bernard Mitton | m. | Richard Lewis | 7-6 6-4 |
| John McEnroe | m. | Russell Simpson | 7-6 6-2 |
| Steve Docherty | m. | John Feaver | 4-6 7-5 6-4 |
| Erik Van Dillen | m. | Bill Scanlon | 6-3 6-3 |
| Rick Fisher | m. | Charlie Pasarell | 6-4 7-5 |
| Carlos Kirmayr | m. | Michael Wayman | 6-1 2-6 6-2 |
| Eliot Teltscher | m. | Vincent Van Patten | 6-1 6-4 |
| Gene Mayer | m. | Ricardo Ycaza | 6-2 6-3 |
| Arthur Ashe | m. | George Hardie | 6-4 4-6 6-1 |
| Van Winitsky | m. | Bruce Manson | 2-6 6-4 7-6 |
| Byron Bertram | m. | Alvaro Fillol | 6-3 6-7 6-2 |
| John Austin | m. | Greg Halder | 7-6 6-1 |
| Roscoe Tanner | m. | John James | 6-2 6-2 |