Lewis got to this point by edging out Glen Durrant in a 6-3 win where both players averaged in the mid nineties.
Van der Voort overcame James Wade in a 6-4 victory which saw him defy a 102 average from The Machine.
There is also a welcome return to the latter stages for Raymond van Barneveld who edged out young Dutchman, Geert Nentjes.
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93.0 | White, Ian | 6 | - | 0 | Joyce, Ryan | 82.5 |
87.3 | Rafferty, Nathan | 6 | - | 1 | Whitehead, Conan | 82.5 |
87.9 | Marijanovic, Robert | 6 | - | 5 | Kantele, Marko | 90.3 |
103.3 | Clayton, Jonny | 6 | - | 3 | Henderson, John | 104.4 |
94.9 | Lewis, Adrian | 6 | - | 3 | Durrant, Glen | 95.0 |
93.2 | Woodhouse, Luke | 6 | - | 4 | Brooks, Bradley | 89.1 |
99.1 | van der Voort, Vincent | 6 | - | 4 | Wade, James | 102.0 |
92.2 | Tabern, Alan | 6 | - | 5 | McGeeney, Mark | 89.9 |
88.3 | Boulton, Andy | 6 | - | 1 | Hudson, Peter | 84.8 |
102.0 | King, Mervyn | 6 | - | 2 | Monk, Arron | 94.2 |
92.5 | Brown, Keegan | 6 | - | 1 | van de Pas, Benito | 81.6 |
93.5 | Reyes, Cristo | 6 | - | 1 | Razma, Madars | 90.2 |
95.5 | Dekker, Jan | 6 | - | 3 | Dobey, Chris | 97.9 |
91.7 | Ward, Harry | 6 | - | 3 | Van den Bergh, Dimitri | 92.8 |
90.0 | Schindler, Martin | 6 | - | 2 | De Sousa, Jose | 86.9 |
90.3 | van Barneveld, Raymond | 6 | - | 3 | Nentjes, Geert | 83.6 |