BASEBALL
Jered Weaver of Long Beach State and Huston Street of Texas held the host team to two hits as the United States won its 25th straight game this summer, 2-0. Weaver allowed one hit in 7 1-3 innings. Stanford's Daniel Putnam had three hits and drove in the winning run.

Nicaragua's Cairo Murillo threw a no-hitter against Guatemala. He struck out four and allowed four baserunners, three on errors, in a 5-0 win.

Cuba blanked Brazil 4-0.

BASKETBALL
Ricky Paulding hit two free throws in the final 33.6 seconds and Missouri teammate had 17 points as the United States beat Uruguay 74-72 to advance to the medals round. Andre Barrett of Seton Hall forced a critical turnover by tying up Alejandro Muro with 9.1. seconds left.

The United States will play Brazil in the semifinals. The Brazilians beat the Dominicans 92-77. The hosts will play Puerto Rico.

Jamie Carey of Texas scored 20 points and made all six of her 3-pointers to lead the U.S. women to a 77-64 upset of Brazil. The Brazilians have four former WNBA players, while the Americans are all college players.

BEACH VOLLEYBALL
David Fischer and Brad Torsone gave the United States a split in beach volleyball. The sixth-seeded men defeated 14th-seeded Hugo Andres Gaona and Ramon Martinez of Paraguay 21-11, 21-15.

Larissa Franca and Ana Richa Medeiros of Brazil defeated Americans Michelle Morse and Liz Pagano, 15-21, 21-16, 15-9 in their opening match.

BOWLING
Mexico's Marcos Baeza and Daniel Falconi averaged 234.67 and 220.83 to earn the top two spots after the first round of men's singles. Falconi had a Pan Ams record-tying 297 game.

Two-time U.S. amateur champion Bill Hoffman was fifth with 1,268. Fellow doubles gold medalist Scott Pohl was sixth with 1,259.

Guatemala's Sofia Rodriguez averaged more than 214 for six games to take the women's lead. Shannon Pluhowsky, Phoenix, was sixth (202.17 average), while fellow Pan Am doubles silver medalist Stacy Werth, Rocklin, Calif., was 11th (188.83).

FENCING
Ivan Lee of Brooklyn, N.Y., won a gold medal in men's saber and Jason Rogers of Los Angeles took the bronze. Lee beat Rogers 15-11 in the semifinals, then defeated Carlos Bravo of Venezuela for the gold.

Stephanie Eim (New York) and Elisabeth Spillman (Los Angeles) finished seventh and eighth, respectively, in women's epee. Both lost in the quarterfinals.

FIELD HOCKEY
Argentina scored three times in the second half for a 4-0 victory over the United States in men's play.

GYMNASTICS
Chellsie Memmel, 15, of West Allis, Wis., edged 13-year-old Nastia Liukin of Plano, Texas, for the all-around women's gymnastics gold. Memmel is the first U.S. double-gold winner, also winning one with the American team on Saturday. Liukin took silver.

HANDBALL
The U.S. women beat the Dominican Republic 30-23.

ROWING
Lightweight women's single sculler Melissa Rice (Virginia Beach, Va.) won her opening heat and advanced directly to Friday's final. She easily beat racers from El Salvador and the Dominican Republic.

Men's single sculler Andrew Liverman (Oakton, Va.) also advanced to the final, as did the men's pair of John Cranston (San Francisco) and Chris Liwski (Sarasota, Fla.), and the women's double sculls tandem of Katie Madigan (Ann Arbor, Mich.) and Catherine Humblet (Cambridge, Mass.).

SAILING
In the J-24 class, Tim Healy of Newport, R.I. and his crew of New Englanders -- Nick Judson, Gordon Borges, Davenport Crocker -- were tied for first with Brazil after two races. Mistral sailor Lanee Butler of Aliso Viejo, Calif., also led after the first day. Jeff Linton of Tampa, Fla., was sixth overall in Sunfish. Snipe sailor Henry Filter of Stevensville, Md., was seventh along with crew Lisa Griffith of San Diego. In Hobie 16s, the husband-and-wife team of Paul and Mary Ann Hess of Napa, Calif., finished fifth overall, as did Laser Radial sailor Sally Barkow of Pine Lake, Wisc. Peter Wells of Newport Beach, Calif., was in seventh overall in Mistral Men's class.

SHOOTING
High school junior Collyn Loper of Indian Springs, Ala., had to overcome two delays when another competitor's gun malfunctioned to win the women's trap event. Loper, 16, who is blind in her right eye, went into the final round with a four-point lead and won by three. She also clinched an Olympic berth for the U.S. team.

Bradley Wheeldon of Eubank, Ky., earned a silver medal and a U.S. slot for Athens in men's air rifle. The two-time All-American was second to Argentina's Angel Velarte.

TENNIS
Carly Gullickson, 16, of Palm Beach Gardens, Fla., became the youngest American to compete in Pan Ams tennis, defeating Daniela Alvarez of Bolivia 6-4, 6-4 in the first round. Joining Gullickson, the daughter of former major league pitcher Bill Gullickson, in the second round was teammate Ansley Cargill of Atlanta, who beat Mexico's Karin Palme 6-1, 6-2.

WATER POLO
The U.S. women, fresh from winning the world championship, scored the first seven goals and routed Puerto Rico 20-2. Margie Dingeldein of Stanford and Heather Moody of San Diego State scored five goals apiece.

Not to be outdone, the American men moved to 3-0 with a 14-2 win over Puerto Rico. Brett Ormsby of El Cajon, Calif., and Tony Azevedo of Long Beach each scored four times for the United States.