Oxfordshire ace Deta Hedman saw off Rhian Edwards 2-1 to reach the last four of the World Professional darts Championship at Frimley Green.

Former county ace Trina Gulliver dedicated her 2-0 quarter-final win over Lisa Ashton to her mother, Muriel, who died two days before the tournament started.

Men’s joint title favourite Scott Waites beat Andy Boulton 3-1 in an absorbing 42-minute encounter.

Willy van de Wiel saw off Dave Prins 3-0.