Complex sentence: Despatie successfully defended his three-metre springboard title at the 2006 Commonwealth Games in Melbourne, and also won gold medals on 1m springboard and 3m synchronized with Arturo Miranda.
Split into simpler sentences: Despatie successfully defended his three-metre springboard title at the 2006 Commonwealth Games in Melbourne, winning again a gold medal. He won 3 gold medals in Melbourne: on 1m springboard, 3m springboard and 3m synchronized with Arturo Miranda.