Favored Cuban bantamweight Guillermo Rigondeaux Ortiz was upset on Tuesday by Agasi Mehmet Agaguloglu of Azerbaijan on the third day of the 12th World Amateur Boxing Championships at Bangkok's Nimibutr Gymnasium.
Agaguloglu had lost to Rigondeaux, the world champion and Sydney Olympic Games gold medalist in two previous outings, but triumphed 16-13 on Tuesday.
Cuban pride was salvaged in the welterweight division when Lorenzo Aragon Armenteros defeated Bulent Ulusoy of Turkey 18-17, and heavyweight Odlanier Solis Fonte beat Spiridon Kladouhas of Greece.
The US team of 11 boxers celebrated its first victory Tuesday, when Andre Berto of Winter Haven, Florida defeated Yasiavichus Rolandas of Lithuania, 29-22, in the welterweight division.
After several first-round losses by other members of the US team, head coach Frank Gentile complained Tuesday about the tournament's scoring.
"I just think some of the judging is a little bit off than what I'm used to," he said. "In the United States, we judge the points a bit differently than they do here. We're gonna start adjusting to it."
He said there had been some American losses which seemed like clear victories, and that he thought the judges "could be more fair."
Russian victors Tuesday included bantamweight Gennadi Kovalev, who beat Hungary's Zsolt Bedak 43-20; welterweight Andrey Mishin, who beat Greece's Georgios Bilis when the referee stopped the contest, and heavyweight Alexandre Alexseev, who defeated Shamsidin Arbobov of Tajikistan when the referee stopped the fight.
Two hometown favorites advanced Tuesday. Thai bantamweight Thongdang Kongjran defeated Canada's Andrew Kooner, while his welterweight teammate Manon Boonjamnong beat Italy's Leonard Bundu.