THE winner of the South China Morning Post's Macau Grand Prix competition is Dim Kim Sing-chua of Causeway Bay. Runners-up are J. Bell of Repulse Bay and Tony Craig of Cheung Chau. The correct answers were that this year's Grand Prix is the 42nd; the Guia Circuit is 6.1 kilometres long; and Melco is the famous hairpin bend. Hundreds of lucky readers who took part in the competition will receive 30 per cent discount vouchers courtesy of Mandarin Oriental Macau.