He represented his country at the 2008 Summer Olympics in Beijing. Due to a misprint in his personal best time, he was rumoured by the international media to be a potential successor to "Eric the Eel" – a spectacular underperformer. He was prematurely nicknamed "Stany the Snail", until he actually swam and the media conceded that he "wasn't too bad". Kempompo finished last in the 50 metre freestyle event, with a time of 35.19.