Also, in 2005 he came second in the 100 metres World Youth Championships in Athletics in a British one, two, behind Harry Aikines-Aryeetey and third at the European Junior Athletics Championships in Kaunas Lithuania.
3 August 2008 Craig and Simeon were featured in a BBC documentary called Sprint along with other 100m hopefuls Harry Aikines-Aryeetey and Wade Bennett-Jackson.
He was eliminated in the 200 m semi-finals and in the relay final he clashed with Britain's Harry Aikines-Aryeetey and failed to pass the baton successfully.
He has been an athletics coach and while in the United Kingdom coached British sprinter Harry Aikines-Aryeetey, a former youth world champion.
That year, Williamson was featured in a BBC documentary called Sprint, along with other 100 m hopefuls Pickering, Harry Aikines-Aryeetey and Wade Bennett-Jackson.
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