Five-time Wimbledon champion Bjorn Borg easily defeated Guillermo Vilas, 6-1, 6-2, in yesterday's final of the $250,000 Suntory Cup men's tennis competition in Toyko, his first championship following a five-month layoff.

In the third-place match, Vince Van Patten defeated John McEnroe, the reigning U.S. Open and Wimbledon champion, 5-7, 6-4, 6-3.

The victory was worth $110,000 to Borg, while Vilas received $70,000 as runner-up.

Ivan Lendl won the $300,000 River Oaks International tournament in Houston by default after Jose-Luis Clerc, upset that the rain-delayed match was being moved to a lighted court, resigned. Lendl pocketed the $100,000 first-prize check and Clerc took home $32,000. Details of the reasons for Clerc's decision were not immediately available. He defaulted after the match had gone four hours, delayed twice because of light rain.

In Los Angeles, top-seeded Jimmy Connors followed his strong serve with pinpoint passing shots to defeat unseeded Mel Purcell, 6-2, 6-1, in the final of the $200,000 Pacific Southwest Tennis Open.

Martina Navratilova and Pam Shriver defeated Anne Smith and Kathy Jordan, 7-5, 6-3, in Fort Worth to claim the $50,000 first prize in the World Doubles Championship.