Lewis edged out Danny Noppert 6-5 after surviving one match-dart from the Dutchman on the bullseye. Baker came through after defeating Max Hopp 6-5.
Smith needed eleven legs to battle past Dave Chisnall in a match where both players averaged over 102. West beat UK Open champion Nathan Aspinall to move into the last eight.
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97.5 | White, Ian | 6 | - | 4 | Searle, Ryan | 92.3 |
102.5 | Smith, Michael | 6 | - | 5 | Chisnall, Dave | 104.5 |
100.7 | West, Steve | 6 | - | 5 | Aspinall, Nathan | 95.3 |
92.7 | Beaton, Steve | 6 | - | 2 | Smith, Ross | 89.2 |
102.0 | Lewis, Adrian | 6 | - | 5 | Noppert, Danny | 102.4 |
103.5 | Wade, James | 6 | - | 3 | Monk, Arron | 92.1 |
92.2 | Baker, Scott | 6 | - | 5 | Hopp, Max | 91.1 |
95.6 | De Sousa, Jose | 6 | - | 2 | Huybrechts, Kim | 87.8 |