* Capsules of yesterday's events on the fourth day of the Pan American Games:



Mark Lenzi defied the boos and whistles of a raucous crowd as he stood on the board, then nailed the most nervous dive of his life to win a rare U.S. gold in the Pan American Games.

Lenzi's victory gave the Americans a sweep of the diving events so far. The United States won the men's and women's 3-meter springboard, but Cuba still was far ahead in total medals.



* The U.S. men couldn't match Debbie Doom's second perfect game, this one against Nicaragua, but they did fine with a 7-2 victory over the Dominican Republic. Peter Sandman allowed three hits and fanned seven. The Americans (4-0) were led offensively by Brian Martie and Rick Minton with a home run apiece.

Cuba routed the Netherlands Antilles 15-0, Argentina upended Aruba 4-3 and Canada beat Panama 4-1.

In women's play, Canada took Cuba 2-0 and Puerto Rico beat the Bahamas 5-3.


The U.S. men's basketball team also won, beating Argentina 87-81. The team then headed for Miami for some intense practice before returning for Friday's game against the Bahamas. Jim Jackson again led the United States in scoring, this time with 17 points.


* All 10 American wrestlers were double winners on the first day of Greco-Roman competition. Mark Fuller of Davis, Calif., at 105 1/2 pounds; Shawn Sheldon of Albany, N.Y. (114 1/2 pounds); Frank Famiano of Brockport, N.Y. (125 1/2 ); Isaac Anderson of Albany (136 1/2 ); Andy Seras of Schenectady, N.Y. (149 1/2 ); David Butler of El Cajon, Calif. (163); John Morgan of Minneapolis (180 1/2 ); Randy Couture of Stillwater, Okla. (183); James Johnson of Phoenix (220); and Matt Ghaffari of Chandler, Ariz., superheavyweight, were winners.



* The Americans won the gold in the women's team event, led by Hillary Anderson, West Granby, Conn.; Juliet Bangerter, Tempe, Ariz.; Kristin McDermott, Brooklyn, N.Y.; Gwin Spindle, Gallatin, Mo.; Chelle Stack, Birmingham, Ala.; Stephanie Woods, Austin, Texas; and Anne Woynerowski, Mountain Lakes, N.J. They had 380.77 points, finishing in front of Cuba and Canada.


* The United States, behind strong goalkeeping down the stretch by Bill Kessler, beat Brazil 23-21 for its second straight close win. Argentina defeated Canada 25-22 in the other game as Roberto Morlachi scored seven goals.


* Pedro Negrin of Cuba took the gold medal in all three 60-kilogram events, with Bryan Jacob of Palatka, Fla., getting silver in snatch and overall.



* The U.S. team won the gold in three-position women's shooting and in men's English. The women's team consisted of Debra Sinclair of Beaverton, Ore.; Tammie De Angelis of Rockville, Md.; and Launi Meili of Cheney, Wash.

The men's team featured Robert Foth of Clarence, N.Y.; Tom Tamas and Michael Anti, both of Columbus, Ga.

The individual golds went to Tamas and Sinclair.


* America's baseball players had an easy time in beating Mexico 12-4. Jason Giambi of Long Beach State drove in four runs for the United States (2-0).


Jorge Valdes of Cuba pitched a seven-inning no-hitter as the host team routed Canada 14-0. The game was halted after Canada batted seven times because of the international 10-run rule.


* Canada downed the United States 2-0 in women's play, dropping the Americans to 1-1. Cuba edged Trinidad 2-1, Mexico beat Barbados 2-0 and Argentina stopped Jamaica 2-0.


* Becky Dyroen of San Jose, Calif., won the individual gold medal with 181.3722 points.



* Mexico, led by Jose Noriega with three goals, ripped Nicaragua 6-0. Haiti and Cuba tied 2-2.


* Both U.S. teams were 3-0 winners. The men, with Sean O'Neill of McLean, Va., Jim Butler of Iowa City, Iowa, and Dhiren Narotam of Ames, Iowa, beat the Dominican Republic. The women, led by Diana Gee of Dallas and Insook Bhushan of Aurora, Colo., defeated Brazil.