Michael van Gerwen has made sure of a top-four position in the Premier League table with a 7-4 win over Andy Hamilton.
The Dutchman was always in control against the World Championship runner-up, who was eliminated from the competition as a result of his defeat.
Van Gerwen is joined in the semi-finals by Phil Taylor, who averaged nearly 101 in securing a 7-2 success over Robert Thornton.
Raymond van Barneveld will also feature at the O2 Arena in two weeks' time after he overcame the challenge of Adrian Lewis by a 7-4 scoreline.
James Wade's chances of progression suffered a setback after he fell to two defeats in Liverpool.
Firstly, Simon Whitlock's superior finishing earned him a 7-4 victory, before Hamilton returned at the end of the night to clinically dispose of the left-hander with a 7-2 triumph.