Edinburgh badminton evergreen Christine Black has won gold medals in THREE categories at the BWF World Senior Championships in Pattaya, Thailand. Picture of concentration – Christine BlackSingles success: Christine on the podium in ThailandMixed doubles gold medal with fellow Scot Dan TraversIn the over-70s singles Christine defeated India’s J Phillips 21-17, 21-7 and also partnered Marjan Ridder from the Netherlands to the women’s doubles title. Completing the slam Christine teamed up with fellow Scot Dan Travers to win the over-65 mixed doubles title with a three set win over B Steenberg (Denmark) and M Brzenznicka (Poland). Christine said: “I have won world singles, doubles and mixed in different age categories but never a world treble. Only a European treble.