| Singles | |
|---|---|
| 1978 World Championship Tennis Finals | |
| Champion |
|
| Runner-up |
|
| Final score | 6–3, 6–2, 6–1 |
Jimmy Connors was the defending champion but did not compete that year.
Vitas Gerulaitis won in the final 6–3, 6–2, 6–1 against Eddie Dibbs.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.