In the men's singles, top seed Shingo Kunieda of Japan, who is aiming for a sixth US Open crown, went a set down to Belgium's Joachim Gerard before fighting back to triumph 4-6, 6-1, 6-3.

Kunieda will face defending champion Alfie Hewett in the final, after the British player knocked out second seed Gustavo Fernandez of Argentina in three sets, 6-4, 1-6, 6-3.

In the women's singles, top seed Diede de Groot of The Netherlands also endured a tough passage to reach the final as she beat compatriot and doubles partner Marjolein Buis 7-6, 4-6, 6-1.

Both last-four matches went to the form book as second seed Yui Kamiji of Japan won comfortably against Colombian Angelica Bernal, dropping just three games as she triumphed 6-2, 6-1 in exactly one hour.

In the quad singles competition, being played in a round-robin format, today's matches included a meeting of the top two seeds Dylan Alcott of Australia and Andy Lapthorne of Britain.

Top seed Alcott won in straight sets 6-1, 7-6, while in the day's other match Sam Schroder of The Netherlands beat American David Wagner 7-5, 6-4.

In the doubles competitions, the two top men's pairings both enjoyed convincing victories as the competition started at the last-four stage.

Top seeds Hewett and Gordon Reid, the British pairing, won 6-3, 6-3 against Fernandez and Kunieda while second seeds Stephane Houdet and Nicolas Peifer, the French pairing, won 6-2, 6-1 against Gerard and American Casey Ratzlaff.

It was a similar story in the women's doubles, with the top two seeds both enjoying straight-sets victories.

Top seeds Buis and De Groot won 6-0, 6-1 against Momoko Ohtani of Japan and Lucy Shuker of Britain, while second seeds Kamiji and Britain's Jordanne Whiley won 6-2, 6-1 against Bernal and Dana Mathewson of the United States.