# 1978 U.S. Clay Court Championships – Men's doubles

Jaime Fillol and Patricio Cornejo, the defending champions, returned with new partners. The pairs met in the quarterfinals with Cornejo and Pat DuPré claiming victory but Gene Mayer and Hank Pfister ended their run in the semifinal. Top-seeded Mayer and Pfister went on to win the title, beating Jeff Borowiak and Chris Lewis in the final.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
* Gene Mayer / Hank Pfister (champions)
* John McEnroe / Balázs Taróczy (semifinals)
* Álvaro Fillol / Jaime Fillol (quarterfinals)
* José Higueras / Manuel Orantes (second round)
* José Luis Clerc / Belus Prajoux (first round)
* Patricio Cornejo / Pat DuPré (semifinals)
* François Jauffret / Christophe Roger-Vasselin (first round)
* Jeff Borowiak / Chris Lewis (final)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Gene Mayer Hank Pfister | 7 | 7 | | | | | |
| 6 | Patricio Cornejo Pat DuPré | 5 | 6 | | | | | |
| 6 | Patricio Cornejo Pat DuPré | 5 | 6 | | 1 | Gene Mayer Hank Pfister | 6 | 6 |
| | | | | | 8 | Jeff Borowiak Chris Lewis | 3 | 1 |
| 8 | Jeff Borowiak Chris Lewis | 7 | 4 | 7 | 8 | Jeff Borowiak Chris Lewis | 3 | 1 |
| 2 | John McEnroe Balázs Taróczy | 6 | 6 | 5 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | G Mayer H Pfister | 6 | 6 | | | | | | | | | | | | | | |
| | George Carlsson S Stewart | 0 | 3 | | 1 | G Mayer H Pfister | 6 | 6 | | | | | | | | | |
| | R Lombardi H Schoenfield | 2 | 3 | | | D Carter R Frawley | 3 | 4 | | | | | | | | | |
| | D Carter R Frawley | 6 | 6 | | | | | | 1 | G Mayer H Pfister | 6 | 6 | | | | | |
| | P Bertolucci A Panatta | 1 | 6 | | | | | | | M Fishbach B Mitton | 1 | 2 | | | | | |
| | M Fishbach B Mitton | 6 | 7 | | | M Fishbach B Mitton | 6 | 6 | | | | | | | | | |
| | M Davis S Denton | 6 | 3 | 6 | | M Davis S Denton | 0 | 1 | | | | | | | | | |
| 7 | F Jauffret C Roger-Vasselin | 2 | 6 | 3 | | | | | | | | | | 1 | G Mayer H Pfister | 7 | 7 |
| 3 | Á Fillol J Fillol | 6 | 6 | | | | | | | | | | | 6 | P Cornejo P DuPré | 5 | 6 |
| | B Coleman G Holroyd | 2 | 4 | | 3 | Á Fillol J Fillol | 6 | 6 | | | | | | | | | |
| | B Nichols Chip Tolleson | 7 | 6 | | | B Nichols C Tolleson | 4 | 4 | | | | | | | | | |
| | G Ocleppo P Rodríguez | 6 | 4 | | | | | | 3 | Á Fillol J Fillol | 6 | 2 | 3 | | | | |
| | Á Betancur B Rowe | 7 | 3 | 4 | | | | | 6 | P Cornejo P DuPré | 4 | 6 | 6 | | | | |
| | D Lloyd J Lloyd | 6 | 6 | 6 | | D Lloyd J Lloyd | 3 | 4 | | | | | | | | | |
| | P Feigl T Svensson | 6 | 4 | 4 | 6 | P Cornejo P DuPré | 6 | 6 | | | | | | | | | |
| 6 | P Cornejo P DuPré | 4 | 6 | 6 | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | J Borowiak C Lewis | 6 | 6 | | | | | | | | | | | | | | | | |
| | Earl Prince R Tyler | 0 | 2 | | 8 | J Borowiak C Lewis | 6 | 6 | | | | | | | | | | | |
| | B Drewett J Kriek | 6 | 5 | 6 | | B Drewett J Kriek | 2 | 4 | | | | | | | | | | | |
| | K Johansson S Krulevitz | 3 | 7 | 2 | | | | | | 8 | J Borowiak C Lewis | 5 | 6 | 6 | | | | | |
| | S Docherty G Hardie | 6 | 6 | | | | | | | | S Docherty G Hardie | 7 | 4 | 2 | | | | | |
| | T Graham J Sadri | 3 | 3 | | | S Docherty G Hardie | w/o | | | | | | | | | | | | |
| | G Moretton P Portes | 2 | 2 | | 4 | J Higueras M Orantes | | | | | | | | | | | | | |
| 4 | J Higueras M Orantes | 6 | 6 | | | | | | | | | | | | 8 | J Borowiak C Lewis | 7 | 4 | 7 |
| 5 | JL Clerc B Prajoux | 6 | 3 | 0 | | | | | | | | | | | 2 | J McEnroe B Taróczy | 6 | 6 | 5 |
| | É Deblicker Y Noah | 4 | 6 | 6 | | É Deblicker Y Noah | 4 | 6 | 6 | | | | | | | | | | |
| | C Dowdeswell H Günthardt | 6 | 6 | | | C Dowdeswell H Günthardt | 6 | 0 | 3 | | | | | | | | | | |
| | B Martin B Scanlon | 4 | 2 | | | | | | | | É Deblicker Y Noah | 1 | 5 | | | | | | |
| | C Barazzutti H Kary | 2 | 2 | | | | | | | 2 | J McEnroe B Taróczy | 6 | 7 | | | | | | |
| | Ž Franulović H Gildemeister | 6 | 6 | | | Ž Franulović H Gildemeister | 3 | 4 | | | | | | | | | | | |
| | D Crealy I El Shafei | 4 | 4 | | 2 | J McEnroe B Taróczy | 6 | 6 | | | | | | | | | | | |
| 2 | J McEnroe B Taróczy | 6 | 6 | | | | | | | | | | | | | | | | |