Australia is guaranteed three Paralympic table tennis medals after Ma Lin and Sam von Einem joined Lina Lei in the semi-finals in Tokyo while another medal is also beckoning.
Third-ranked Lin accounted for young world No.4 Lev Kats in the quarter-finals on Friday night, which was his fourth win without dropping a set.
The 31-year-old will take on another Ukrainian Ivan Mai in the semi-finals on Saturday for a place in the C9 men's singles gold medal decider.
In a change in 2017, there is no longer a bronze medal play-off in the table tennis with both losing semi-finalists awarded a medal.
Lin, who lost his arm in a bear attack at a Chinese zoo as a child, already has five Paralympic gold in his keeping while representing China.
He switched allegiance after Rio, as did Lei, who competed at four Paralympics between 2004 and 2016, winning five gold medals and three silver in singles and team classes
Lei will meet Hungary's Alexa Szvitacs in the women's C9 semi- final also on Saturday.
Rio silver medallist von Einem toppled Spaniard Eduardo Cuesta Martinez on Friday and will now take on Florian van Acker in the semi-final of the men's C11 singles.
Melissa Tapper, who also competed in the Olympics, will square off against fellow Australian Qian Tang in the women's C10 quarter finals on Saturday.
One of those athletes will advance to the semi-finals, thereby locking in a fourth medal for Australia.
Triple Paralympian Rebecca Julian was outplayed by Russian Maliak Alieva in their C6 quarter-final match 15-13 11-4 11-5.
Australian Associated Press