{{Use mdy dates|date=August 2023}} {{TennisEventInfo|1979|Mutual Benefit Life Open| | date=July 30 – August 5 | edition=10th | category=[[Grand Prix circuit|Grand Prix]] | prize_money=$75,000 | draw=32S/16D | surface=[[Clay court|Clay]] / outdoor | location= [[South Orange, New Jersey|South Orange]], New Jersey, US | venue=Orange Lawn Tennis Club | champs={{flagicon|USA}} [[John McEnroe]]<ref name="ms">{{cite web|title=South Orange – Singles draw|url=https://www.atptour.com/en/scores/archive/south-orange/707/1979/draws?matchtype=singles|publisher=Association of Tennis Professionals (ATP)}}</ref> | champd={{flagicon|USA}} [[John McEnroe]] / {{flagicon|USA}} [[Peter Fleming (tennis)|Peter Fleming]]<ref name="md">{{cite web|title=South Orange – Doubles draw|url=https://www.atptour.com/en/scores/archive/south-orange/707/1979/draws?matchtype=doubles|publisher=Association of Tennis Professionals (ATP)}}</ref> | main_name=South Orange Open }} The '''1979 Mutual Benefit Life Open''', also known as the South Orange Open, was a man's [[tennis]] tournament played on outdoor [[clay court]]s at the Orange Lawn Tennis Club in [[South Orange, New Jersey]] in the United States. The event was part of the [[1979 Grand Prix (tennis)|1979 Grand Prix circuit]]. It was the tenth edition of the tournament and was held from July 30 through August 5, 1979. First-seeded [[John McEnroe]] won the singles title and earned $13,000 first-prize money.<ref name="wot1980">{{cite book|title=World of Tennis 1980 : a BP yearbook|year=1980|publisher=[[Queen Anne Press]]|location=London|isbn=9780362020120|oclc=237184610|page=123|editor=[[John Barrett (tennis)|John Barrett]]}}</ref><ref>{{cite news |title=McEnroe tops tough Lloyd for tennis win |url=https://www.newspapers.com/image/743849218/ |work=The Montreal Star |date=August 6, 1979 |page=D5 |via=Newspapers.com |url-access=limited}}</ref>

==Finals==

===Singles=== {{flagicon|USA}} [[John McEnroe]] defeated {{flagicon|GBR}} [[John Lloyd (tennis)|John Lloyd]] 6–7<sup>(1–7)</sup>, 6–4, 6–0 * It was McEnroe' 6th singles title of the year and the 11th of his [[John McEnroe career statistics|career]].

===Doubles=== {{flagicon|USA}} [[John McEnroe]] / {{flagicon|USA}} [[Peter Fleming (tennis)|Peter Fleming]] defeated {{flagicon|USA}} [[Fritz Buehning]] / {{flagicon|USA}} [[Bruce Nichols]] 6–1, 6–3

==References== {{Reflist}}

==External links== * [https://www.itftennis.com/en/tournament/south-orange/usa/1979/m-gp-usa-26a-1979/draws-and-results/ ITF tournament edition details]

{{South Orange tournaments}} {{1979 Colgate-Palmolive Grand Prix}}

[[Category:1979 Grand Prix (tennis)|South Orange Open]] [[Category:1979 in American tennis|South Orange Open]] [[Category:1979 in sports in New Jersey|South Orange Open]] [[Category:July 1979 sports events in the United States|South Orange Open]] [[Category:August 1979 sports events in the United States|South Orange Open]] [[Category:Tennis tournaments in New Jersey]] [[Category:South Orange Open]]