Shingo Kunieda will face Robin Ammerlaan in Sunday's men's main draw singles final at the US Open USTA Wheelchair Championships, part of the NEC Wheelchair Tennis Tour, in St. Louis, while David Wagner will defend his quad singles final against former champion Peter Norfolk.
A day after sealing his 100th successive singles victory, world No. 1 Kunieda secured his second 61 62 vicotry in as many days as he eased past sixth seed Ronald Vink to deny the Dutchman a place in his third Super Series final of the season.
Dutch fortunes improved in the other semifinal as world No. 5 Ammerlaan edged out Japanese eighth seed Satoshi Saida 75 75 to books his place in Sunday's decider.
Wagner was in fine form as he kept his title defence alive with a 60 62 victory over world No. 3 Johan Andersson in a rematch of last year's final in St. Louis. The American top seed will now play current world No. 2 Norfolk after the Briton beat world No. 4 Nick Taylor 62 60 to reach the final of his first tournament since April, when he was beaten by Wagner in the final of the Florida Open, the first Super Series event of the year.
Griffioen and Walraven clinch women's doubles title
After coming in to this week's tournament without one of the two seeded positions, Dutch duo Jiske Griffioen and Sharon Walraven eased to the women's doubles title after a comfortable victory over top seeds Daniela di Toro of Australia and Britain's Lucy Shuker.
Griffioen and Walraven won the last three games of the first set in Saturday's contest, crucially breaking di Toro serve in the penultimate game, and then relinquished just the fourth game of the second set to wrap up a 63 61 victory, leaving di Toro and Shuker to pick up runners-up honours for the second successive year.
Meanwhile, Taylor and Wagner retained their quad doubles title with a 62 75 victory over Swedish seconds seeds Andersson and Anders Hard.
After winning the last three games of the first set Taylor and Wagner won four games in succession to lead the second set 4-1 before Andersson reduced the deficit with an inside out forehand winner and he and hard went on to win four out of five games to level the set at 5-5. However, Taylor and Wagner continued to pressurise their opponents and Taylor eventually hit a penetrating forehand that caused Andersson to return the ball wide, wrapping up the win for the Americans on their second match point.
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US Open USTA Wheelchair Championships Drawsheets
US Open USTA Wheelchair Championships Official Website