Japan's Chiyo Suzuki and Yurika Sakaguchi defeated top seeds and compatriots Sayaka Mizoe and Suzuka Hashimoto on the way to the semi-finals of the International Volleyball Federation Beach World Tour women's event in Phnom Penh.
Chiyo and Sakaguchi came through 21-15, 21-10 against their fellow countrywomen in the round-of-16 at the National Sports Complex in the Cambodian capital.
They then won against Thailand's Varapatsorn Radarong and Khanittha Hongpack over three sets to reach tomorrow's semi-final, triumphing 24-26, 21-15, 16-14.
They will play the Greek duo of Panagiota Karagkouni and Vasiliki Arvaniti in the last four.
The Greek pair defeated Michaela Kubickova and Michala Kvapilová of the Czech Republic 19-21, 21-14, 15-9, before securing a 21-12, 21-16 quarter-final victory against Caitlin Ledoux and Geena Urango of the United States.
The other semi-final will be contested between Thailand's Rumpaipruet Numwong and Tanarattha Udomchavee and Americans Amanda Dowdy and Corinne Quiggle.
Numwong and Udomchavee first had success against Nai-Han Kou and Pi Hsin Liu of Chinese Taipei, winning 21-18, 21-17.
In the quarter-final they beat Martina Bonnerová and Martina Maixnerova of the Czech Republic 20-22, 21-11, 15-11.
Dowdy and Quiggle's journey to the semi-final included a 21-10, 21-18 victory against compatriots Carly Wopat and Brittany Hochevar, followed by an 18-21, 21-9, 15-8 battle against Canada's Amanda Harnett and Marie-Christine Lapointe.
The semis and final will be played tomorrow.