Vincent, of Teignbridge in Devon, edged into a 4-2 lead after five ends and at the close of the 10th had increased her advantage to 11-6. She then moved into overdrive and a run of 2-1-3-3-1 secured victory.
In the semi-finals, Vincent had beaten Gloria Haney, from Spalding in Lincolnshire, 21-11, while Pearce had seen off Yvonne Lyons, of Riverain, Hertfordshire, winning 21-17.
In the pairs championship, the defending champions, Mandy Jacklin and Catherine Anton of Peterborough, bowed out in the first round when they lost 21-17 to Janette Tomlin and Chris Hiom of Boston.
Jean Smith and Ann Harrison, of Folkestone, last year's beaten finalists, edged through with a 19-16 win over Jean Lee and Jan Byford of Tilbury, Essex. Brenda Bailey and Di Whittingham, of the Preston club, who took the unbadged pairs title earlier in the week, picked up a last-end five to beat Margaret Land and Carol Dennison of the Lawns, Middlesex, 18-17.Reuse content