AMAモトクロス
Before the start of the 2009 FIM Motocross World Championship season, it was announced the factory KTM team and Rattray were parting ways. Both Rattray and KTM parted mutually as Ratray expressed a greater interest to ride in the United States, following the path of other South Africans such as Grant Langston and Greg Albertyn. Rattray competed in the AMA Motocross Championship for five seasons, finishing in second place in the 250 national championship for two consecutive years in 2010 and 2011.