Martina Navratilova defeated an unusually hard-charging Zina Garrison, 6-4, 6-3, to win her 65th straight tournament match and the Virginia Slims of New Orleans championship.

Navratilova pulled a stomach muscle Tuesday, but said it didn't trouble her in the final. She announced plans earlier in the week to take a five-week vacation from the tour . . .

John McEnroe came on to defeat John Fitzgerald, 4-6, 6-2, 6-1, as the United States continued to dominate the Davis Cup semifinals at Portland, Ore. Then, Australia averted a shutout as Pat Cash beat Jimmy Connors, 6-4, 6-2.

The U.S. team already had clinched a spot in the finals against Sweden by taking a 3-0 lead through Saturday.

In Bastad, Sweden's young and spirited Davis Cup team completed a 5-0 sweep of Czechoslovakia as Mats Wilander defeated Ivan Lendl, 6-3, 4-6, 6-2, and Henrik Sundstrom defeated Tomas Smid, 6-4, 6-4.

Sweden will have the home advantage against the United States in the final, indoors Dec. 28-30. The site, to be announced in Stockholm Tuesday, is likely to be the 12,000-seat Scandinavium Arena in Goteborg. The Swedes would like to install clay, their best surface.