1970 Cincinnati Open
| 1970 Cincinnati Open | |
|---|---|
| Date | July 20 – July 26 |
| Edition | 70th |
| Category | Grand Prix Circuit |
| Draw | 64S / 32D |
| Prize money | $25,000 |
| Surface | Clay / Outdoor |
| Location | Cincinnati, Ohio, USA |
| Venue | Coney Island |
| Champions | |
| Singles | |
 Ken Rosewall
|
|
| Doubles | |
 Ilie Năstase / Ion Ţiriac
|
|
The 1970 Cincinnati Open (also known as the Western Tennis Championships for sponsorship reasons) was a tennis tournament played on outdoor clay courts at the Coney Island in Cincinnati, Ohio in the United States that was part of the 1970 Pepsi-Cola Grand Prix circuit. The tournament was held from July 20 through July 26, 1970. Ken Rosewall won the singles title.
Ken Rosewall defeated 
Cliff Richey 7–9, 9–7, 8–6
Ilie Năstase / Ion Ţiriac defeated 
Bob Hewitt / Frew McMillan 6–3, 6–4
...
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