HONG KONG'S Wong Kam-po threw down the gauntlet to Sviatoslav Riabouchenko in the Tour of Taiwan as he moved within five seconds of the Belarussian tour leader after the fourth stage yesterday. Wong, winner of the third stage up Alishan (Mount Ali) and third overall on the general classification list overnight, finished eighth in the 171-kilometre race from Chiayi to Ping Tong in southern Taiwan. The former Asian junior champion was in the six-strong second pack to flash past the line, clocking three hours, 59 minutes and 22 seconds. But it was enough to see him close the gap on tour leaders Riabouchenko and Taiwan's Chen Chih-hao, who were both in the third group 22 seconds behind. 'Wong Kam-po did not go for the sprint and was the second last in his group to cross the finish line,' said Walter Yue Ka-lok, senior sport executive of the Hong Kong Cycling Association. 'His major concern is to avoid any collision and by finishing eighth today he had made up more than 20 seconds on the two leaders, putting him within a couple of seconds of winning the yellow jersey.' Wong led a breakaway midway into the race but in the last 20 kilometres Australians Adrian Nolan and Tony Morphett attacked and successfully pulled away from the peloton. The Australians, however, were caught by Yasohiro Ando in the last three kilometres and the Japanese outsprinted them to take the stage honour in 3:59:04. Morphett and Nolan were second and third respectively, two seconds behind. Six riders, including Wong, were awarded identical times of 3:59:22 for finishing together in the second group while Man Wai-chung was in the following pack some 20 seconds further back.