Joost Luiten was the first to reach the semi-finals of the World Match Play Championship at the London Golf Club, thrashing Pablo Larrazabal 6&5.
He will play Mikko Ilonen on Sunday after the Finn beat European Ryder Cup player Victor Dubuisson 2up.
In the top match, American Ryder Cup player Patrick Reed, the world number 26, lost 2&1 to George Coetzee.
The South African now plays top seed Henrik Stenson, who saw off fellow Swede Jonas Blixt and won 2up.
Luiten, the only player with a 100% record from the round-robin group stage, moved five up after seven holes of his quarter-final against Spaniard Larrazabal, the world number 70, courtesy of four birdies.
The Dutchman, who ended defending champion Graeme McDowell's reign, carded eight birdies and no bogeys.
World number 89 Coetzee, a late replacement for the injured Thomas Bjorn, was also eight under for his round, with birdies at three of the four par three holes, and was never behind in the match.
The 28-year-old South African has dropped only one shot in his four matches in the event so far.
As rain and mist drifted across the Kent course on a chilly breeze, world number 23 Dubuisson was surprisingly beaten by Finland's Ilonen, ranked 52.
The Frenchman won the fist hole with an eagle three, levelled the match with another eagle at the 15th but lost the next to a par and could only par the last to Ilonen's eighth birdie of the round.
Stenson was three up after 11 against Blixt but lost the 14th and 15th to birdies and then put his tee shot at the par three 16th in the bunker.
But he salvaged a halve in three, and as skies brightened the world number five secured victory.
World Match Play quarter-final results:
George Coetzee (SA) beat Patrick Reed (US) 2&1
Mikko Ilonen (Fin) beat Victor Dubuisson (Fr) 2up
Joost Luiten (Ned) beat Pablo Larrazabal (Sp) 6&5
Henrik Stenson (Swe) beat Jonas Blixt (Swe) 2up