[1] Williams was born in Sydney but moved to the United States when he was nine years old.

In 1999, while he was at UCLA, Williams trained with the Australian national indoor team.

[2] At the 2000 Summer Olympics in Sydney, was a libero of the squad which placed eighth among 12 participating teams.

[4] At the 2004 Summer Olympics in Athens, Williams qualified for the beach volleyball tournament alongside Julien Prosser after competing in the FIVB Tour during the 2003 season.

[4] They finished in fourth place after losing the bronze medal match to fifth-seeded team Patrick Heuscher and Stefan Kobel from Switzerland.