 Kọ itẹsiwaju fun paragirafi yii - O tayọ lati igba ewe rẹ, o yára ju ni igba 400m lọ nipasẹ ọmọ ọdun 14 ati ọmọ ọdun 15. O gba ami ẹyẹ goolu ni CARIFTA Games ati Commonwealth Youth Games, o si gba ami ẹyẹ fadaka ni 400 m ni 2007 World Youth : àti 2008 World Junior Championships. James di eléré ìdárayá àkọkọ tí ó sáré 200400 double ní 2009 World Youth Championships àti 2010 World Junior Champion. 