ISTANBUL (Reuters) — World championship favorite the US made it four wins out of four with an 88-51 victory over Iran on Wednesday while Angola booked a place in the last 16 with a stunning 92-88 overtime defeat of Germany.

Serbia also reached the knockout rounds with a match to spare after a 94-79 victory over Australia and holders Spain avoided an early exit, overcoming a poor start to demolish Lebanon 91-57.

The eagerly-awaited Group B clash between the US and Iran was played in sporting fashion, with pockets of rival fans watching in a half-empty Abdi Ikpeci Arena.

Iran held their own in the first half and trailed by 14 points at the interval but the gulf in class was all too obvious after the break, with all 12 players on the US roster getting on the scoresheet.

“We held our opponents for a long period and it was only in the last seven minutes we ran out of steam,” Iran's Serbian coach Veselin Matic said.

The teams applauded the fans and embraced each other after the match and Matic's US counterpart Mike Krzyzewski praised Iran, whose center Hamad Ehadadi finished as the game's top scorer with 19 points and five rebounds.

Center Kevin Love led the United States with 13 points, forward Kevin Durant added 12, guard Derrick Rose chipped in with 11 and Danny Granger scored 10 in a balanced team effort.

Germany's earlier win over Serbia turned out to be a flash in the pan as they lost to Group A rivals Angola, defeat sending them out of the 24-team event.