1979 ATP Championship

The 1979 ATP Championship, also known as the Cincinnati Open, was a men's tennis tournament played on outdoor hard courts at the Lindner Family Tennis Center in Mason, Ohio in the United States that was part of the 1979 Colgate-Palmolive Grand Prix. It was the 79th edition of the tournament and was held from August 20 through August 26, 1979. Seventh-seeded Peter Fleming won the singles title.

1979 ATP Championship
Date	August 20–26
Edition	79th
Category	Grand Prix circuit
Draw	64S / 32D
Prize money	$200,000
Surface	Hard / outdoor
Location	Mason, Ohio, U.S.
Venue	Lindner Family Tennis Center
Champions
Singles
Peter Fleming[1]
Doubles
Brian Gottfried / Ilie Năstase[2]

Finals

Singles

Peter Fleming defeated Roscoe Tanner 6–4, 6–2

• It was Fleming's 1st singles title of the year and the 2nd of his career.

Doubles

Brian Gottfried / Ilie Năstase defeated Bob Lutz / Stan Smith 1–6, 6–3, 7–6