Veenstra claimed victory edging out Luc Peters in the final in a 6-5 victory. 'Flyers' adds to his success at the Dutch Open and Isle of Man Classic this year as he looks to chase fellow Dutchman, Wesley Harms down for the top spot in the rankings.
For De Graaf it is a second title in as many days as she saw off Deta Hedman in the final in a 5-2 victory. This came after victories over the likes of Andreea Brad, Kirsty Hutchinson along the way.
With two victories, it looks likely De Graaf will now go back into second place in the BDO rankings ahead of Fallon Sherrock after also claiming the BDO Luxembourg Open on Saturday.
Men's
Quarter-finals
Richard Veenstra 5-2 Cedric Taymans
Andy Hamilton 4-5 Gary Stone
Wayne Warren 5-4 Scott Waites
Luc Peters 5-3 Dave Parletti
Semi-final
Richard Veenstra 5-1 Gary Stone
Wayne Warren 2-5 Luc Peters
Final
Richard Veenstra 6-5 Luc Peters
Ladies
Quarter-Finals
Aileen de Graaf 4-0 Andreea Brad
Kirsty Hutchinson 4-3 Vanessa Zuidema
Christina Schuler 2-4 Priscilla Steenbergen
Deta Hedman 4-2 Astrid Trouwborst
Semi-final
Aileen de Graaf 4-0 Kirsty Hutchinson
Priscilla Steenbergen 3-4 Deta Hedman
Final
Aileen de Graaf (80.28) 5-2 Deta Hedman (75.03)