RIO DE JANEIRO _ American Mikaela Mayer lost her women's lightweight quarterfinal Monday at the Riocenter boxing pavilion, falling to hard-punching Russian Anastasiia Beliakova.
Two judges scored the fight 39-37 for the Russian while the third judge ruled it a draw.
Beliakova controlled the bout from the opening bell, fighting off her front foot and keeping Mayer on the retreat.
Although neither fighter landed any particularly damaging blows, Beliakova's punches were crisper and she landed them more frequently than Mayer, who falls a win short of an Olympic medal.
Men's lightweight Nico Hernandez, who earned a bronze in men's boxing last week, is the only American medalist in boxing at these Games.
