Alin George Moldoveanu of Romania won the Olympic gold medal in 10-meter air rifle Monday after equaling the Olympic qualifying record.
Thanks to rain, Victoria Azarenka, Venus Williams and 20 other women at the Olympics who have yet to complete a singles match could end up on court six consecutive days if they reach the gold medal round.
US NBA stars and European champions Spain each overcame slow starts to win their Olympic openers with ease on Sunday, serving notice they remain the teams to beat in the fight to reach the gold medal game.
Camille Muffat won the women's 400m freestyle swimming gold on Sunday, part of a double triumph for France in the Olympic Aquatics Centre.
A set of keys went missing at an Olympic venue last week, but police here said security had not been compromised by the incident.