Kammala jumla mai zuwa: Rooney yana da shekara mai ban takaici a shekara ta 2011, an fitar da shi a wasan kusa da na karshe na mita 400 a gasar zakarun duniya a Daegu kuma ya gama na takwas a matsayin wani ɓangare na tawagar Birtaniya a cikin 4 × 400 m relay. A cikin 2012 Martyn ya fara da kyau, yana gudana 44.92s a watan Afrilu a Mt. SAC Relays a Walnut, California, lokacinsa mafi sauri tun daga 2008. Rooney ya kasa ci gaba da wannan tsari yana zuwa wasannin Olympics na gida, kuma an cire shi a wasan kusa da na karshe na mita 400, yana gudu 45.31s. A cikin
4 × 400 mita relay karshe Martyn ya karbi baton a wuri na shida kuma ya gudu a 44.1 na biyu mai tsayi, amma bai iya wuce Deon Lendore na Trinidad ba kuma ya gama na hudu.