[1][5] Born in Durban, South Africa, Rattray made his first foray into international racing in 1999 when he participated in the inaugural FIM 85cc world cup at Gaildorf, Germany.

In 2002, he formed part of the Vangani Racing "dream team" with Ben Townley and Tanel Leok.

Before the start of the 2009 FIM Motocross World Championship season, it was announced the factory KTM team and Rattray were parting ways.

[6] 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.

[4][7] Rattray returned to compete in the 2014 MXGP world championship for the Red Bull Ice 1 – Husqvarna Racing Team owned by Formula One racer, Kimi Räikkönen.