Shanghai, China: San Antonio Spurs' Patty Mills was in sparkling form once more for Australia as they reached the Basketball World Cup semi-finals for the first time on Wednesday.
The Boomers, who had never gone beyond the quarter-finals in 11 previous appearances, defeated tournament debutants the Czech Republic 82-70 and will meet Spain on Friday.
This was undefeated Australia's sixth win in a row in China and in doing so they avoided becoming the latest surprise casualty at this unpredictable World Cup.
Argentina stunned favourites Serbia on Tuesday while reigning two-time champions the United States were dumped out by France on Wednesday.
The 31-year-old guard Mills led the scoring with 24 points. He also had six assists and four rebounds.
Australia were heavy favourites in Shanghai against the Czechs, who bravely hung on until midway through the third quarter, when the Boomers cranked up the pressure.
Australia survived the World Cup "Group of Death" also including Canada, Senegal and Lithuania, before beating the Dominican Republic and then fellow semifinalists France.
Veteran Australian Andrew Bogut was again loudly booed throughout by fans in Shanghai upset with a tweet he wrote in July about Chinese swimming star Sun Yang.
He goaded the crowd afterwards with a dance as he came off the court.