1 ▁I A AF ▁Diam ond ▁League , ▁at ▁the ▁Q atar ▁Athlet ic ▁Super ▁Grand ▁Prix , ▁he ▁won ▁the ▁ 2 0 0 ▁m ▁with ▁a ▁time ▁of ▁ 2 0 . 0 6 ▁seconds . ▁D ix ▁took ▁further ▁ 2 0 0   m ▁vict ories ▁at ▁the ▁Eug ene ▁and ▁London ▁legs ▁of ▁the ▁series , ▁while ▁Us ain ▁Bol t ▁won ▁the ▁other ▁three ▁ 2 0 0   m ▁mid - season ▁legs . ▁He ▁achieved ▁a ▁ 1 0 0 / 2 0 0 ▁s print ▁double ▁at ▁the ▁ 2 0 1 1 ▁USA ▁Track ▁and ▁Field ▁Championships , ▁winning ▁in ▁the ▁absence ▁of ▁T ys on ▁Gay ▁and ▁Wal lace ▁Spe arm on . ▁Running ▁in ▁both ▁the ▁events ▁at ▁the ▁ 2 0 1 1 ▁World ▁Championships ▁in ▁Athletics , ▁he ▁first ▁secured ▁the ▁silver ▁medal ▁in ▁the ▁ 1 0 0   m ▁final ▁– ▁def ending ▁champion ▁Bol t ▁was ▁dis qual ified ▁for ▁a ▁false ▁start ▁and ▁D ix ▁was ▁runner - up ▁to ▁another ▁J ama ican , ▁Y oh an ▁Bla ke , ▁in ▁a ▁compar atively ▁slow ▁ 1 0 . 0 8 ▁seconds . ▁In ▁the ▁ 2 0 0 - meter ▁final ▁Bol t ▁beat ▁the ▁field ▁but ▁D ix ▁was ▁the ▁closest ▁to ▁him , ▁running ▁ 1 9 . 7 0 ▁seconds ▁to ▁take ▁his ▁second ▁silver ▁of ▁the ▁tournament . ▁He ▁attempted ▁to ▁gain ▁a ▁third ▁medal ▁in ▁the ▁ 4