BEIJING- - Australia continued their impressive form in the basketball World Cup with an 87-82 win over Lithuania and secured a berth in the 2020 Olympic Games while holders United States cruised to a 98-45 rout of Japan on Thursday.
Jaylen Brown scored a game-high 20 points for the Americans, who jumped out to a 13-0 lead and were never threatened.
Kemba Walker added 15 points and eight assists and Harrison Barnes had 14 points and eight rebounds. Joe Harris and Donovan Mitchell each chipped in 10 points.
Team USA led 23-9 after the first quarter, 56-23 at halftime and 84-31 entering the fourth quarter. The U.S. squad shot 48.1 percent from the field and held Japan to just 27.4 percent shooting, including 3 of 17 from 3-point range.
Japan, which had more turnovers (18) than made field goals (17), was led by Yudai Baba with 18 points.
The Czech Republic stunned Turkey 91-76 to secure a last-16 berth in the 32-nation tournament in China and Greece joined them after overcoming a strong challenge from New Zealand in a 103-97 victory over the Tall Blacks.
Having brushed aside Canada and Senegal in their opening two games, Australia took a 52-37 lead against the more fancied Lithuanians late in the first half.
The Baltic nation shored up their defence after the break and nosed ahead 73-70 before the Boomers forced the final twist, with San Antonio Spurs playmaker Patty Mills nailing a crunch three-pointer with 32.9 seconds left.
Mills finished on a game-high 23 points and Phoenix Suns centre Aron Baynes capped an effervescent performance with 21 points and 13 rebounds as Australia lived up to the billing of the tournament's dark horses.
They booked a berth in next year's Olympics in Japan as the World Cup's best-placed nation from Oceania, having stormed into the last 16 while New Zealand dropped into the 17-32nd place playoffs after their defeat by Greece.
The Greeks won an entertaining dogfight for a spot in the second group stage, featuring four pools of four teams, after Giannis Antetokounmpo, last season's most valuable player in the NBA, racked up 24 points and 10 rebounds.
Having clawed victory from the jaws of defeat in a 93-92 overtime win against Turkey, the United States hit top gear from the start and never looked back after racing into a 13-0 lead against Japan.
It was an expected cat and mouse game as the lead grew steadily and the defending champions, chasing their third successive and sixth overall title, had five players in double scoring digits led by Jaylen Brown with 20 points.
Kemba Walker added 15 and Harrison Barnes chipped in with 14 for the Americans, who were joined in the last 16 from their pool by the Czech Republic after they blew away the Turks.
Looking flat after the exertions of their heart-breaking defeat by the U.S., Turkey trailed throughout against an inspired Czech side taking part in their first World Cup as an independent nation.
A valiant solo effort by Turkey's Cleveland Cavaliers guard Cedi Osman, the game's top scorer with 24 points, was cancelled out by a balanced Czech roster.
Brazil, one of the tournament's surprise packages, ended the preliminary group stage on a high with an 84-73 win over Montenegro and France also made it three wins out of three with a 90-56 defeat of the Dominican Republic.
The top two teams from each of the four pools in the second group stage will advance to the knockout rounds.
The tournament's top two teams from the Americas and Europe as well as one each from Asia, Oceania and Africa qualify automatically for the 2020 Olympics.
