Sild's best overall performance in the Orienteering World Cup was finishing 8th in 1996. Other World Cup overall results: 1990: 16th; 1992: 12th; 1994: 20th; 1998: 24th.[2]
He is married to Latvian orienteer Sarmite Sild and his sons Timo Sild and Lauri Sild are also active orienteers and compete at an international level.