Rubuta ci gaba don wannan sakin layi - Rooney yana da shekara ta 2011 mai ban takaici, wanda aka buga 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
Martyn na karshe ya karbi baton a matsayi na shida kuma ya gudu a 44.1 na biyu mai tsayi, amma ba zai iya wuce Deon Lendore na Trinidad ba kuma ya gama na hudu.