The US turned up the defense and turned away Canada.
The Americans held the Canadians to just two field goals in a dominant second quarter, pulling away for a 113-63 victory on Saturday to remain unbeaten in the FIBA Americas tournament.
Also on Saturday, Leandro Barbosa increased his tournament-leading scoring average with 36 points and Brazil hung on for a 93-89 victory over the US Virgin Islands, Uruguay clung on in frantic final seconds to beat Puerto Rico 82-79 and Argentina downed Mexico 104-83.
Carmelo Anthony scored 25 points but the US couldn't shake Canada until it tightened its defense after a competitive first quarter.
Brazil's win set up a meeting of the "unbeatens" as Brazil (3-0) face the US (3-0) on the final day of the first round. The winner will be the top seed from the five-team group heading into the four-game second round. The top two finishers in the 10-team tournament earn berths at the Beijing Olympics.
The Americans reached 100 points less than two-and-a-half minutes into the fourth quarter and are averaging 116 in the tournament -- not far off the record 121.2 the "Dream Team" put up in 1992.
Olumuyiwa Famutimi scored 17 points for Canada (2-2), who were playing for the fourth straight day and were overwhelmed by the Americans, who had Friday off.
The US Virgin Islands (0-3) team was setting up the biggest upset of the tournament when it took a 45-33 lead over Brazil in the second quarter, and was still ahead 48-41 at halftime.
Brazil finally found its shooting touch and starting playing defense in a dominant third quarter in which it outscored the Virgin Islands 31-15.
Brazil increased the lead to 15 points in the last quarter before its opponent had one final rally.
Uruguay (2-1) rallied behind Esteban Batista to overcome a 48-29 halftime deficit, taking the lead for good on Batista's second straight rebound basket that made it 78-76 with 1 minute, 2 seconds left.
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