Lee Lai-shan's hopes of back-to-back women's mistral titles nosedived after a disappointing performance on day three of the SPA Regatta at Medemblik, Netherlands. San San, winner of the European Championships a fortnight ago in Palermo, Sicily, saw her chances slump after finishing sixth and fourth in races five and six respectively, all but handing the event to Frenchwoman Lise Vidal. Hong Kong's champion windsurfer is still in second place in the overall standings on 20 points, but front-runner Vidal has increased the lead between herself and her arch-rival to nine points. Vidal scored a second and a third on day three. With just three races left in the regatta, 32-year-old San San's hopes of overhauling Vidal look slim and out of her hands. She will have to depend on Vidal performing badly in the remaining three races if she is to pull off an unlikely victory. China's up-and-coming stars, Yin Jian and Lai Mingshuang, upset calculations on day three by winning a race each. Yin took race six and is third overall, one point behind San San, while victory for Lai in race five left her occupying sixth place in the standings. Hong Kong's other two female competitors, the Chan sisters, were further behind. Chan Wai-kei is ninth overall while Chan Wai-man is 16th in the field of 28. In the men's event, Ho Chi-ho slipped from third overall to sixth place after finishing fifth and seventh in races five and six respectively. Ho has an aggregate of 19 points - 14 points behind leader Jon-Paul Tobin from New Zealand. Chan King-yin was 13th overall and Cheng Kwok-fai 26th.