Cincinnati Open 1978
Eddie Dibbs won the title, beating Raul Ramirez 5–7 6–3 6–2 in the final.
Latest results
- Semifinal: Eddie Dibbs def. Harold Solomon 6–3 6–2
- Semifinal: Raul Ramirez def. Terry Moor 6–2 6–3
- Quarterfinal: Eddie Dibbs def. Erick Iskersky 6–2 6–0
- Quarterfinal: Harold Solomon def. Hans Gildemeister 6–7 6–3 6–4
Cincinnati 1978 1978
- Defending champion
- Harold Solomon
Ranking points by round
| Champion | 1,000 |
| Runner-up | 650 |
| Semifinal | 400 |
| Quarterfinal | 200 |
| Round of 16 | 100 |
| Round of 32 | 50 |
| Round of 64 | 30 |
| Round of 128 | 10 |
| Qualifier bonus | 20 |
Recent finals
| Year | Champion | Runner-up |
|---|---|---|
| 1977 | Harold Solomon | Mark Cox |
| 1976 | Roscoe Tanner | Eddie Dibbs |
| 1975 | Tom Gorman | Sherwood Stewart |
| 1974 | Marty Riessen | Bob Lutz |
| 1973 | Ilie Nastase | Manuel Orantes |
| 1972 | Jimmy Connors | Guillermo Vilas |
| 1971 | Stan Smith | Juan Gisbert |
| 1970 | Ken Rosewall | Cliff Richey |
Matches by round
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Quarterfinals
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Round of 16
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Round of 32
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Round of 64
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