▁placed ▁fourth ▁at ▁the ▁ 2 0 1 2 ▁Ken yan ▁Olympic ▁tri als , ▁missing ▁out ▁on ▁an ▁Olympic ▁ber th ▁as ▁the ▁top ▁three ▁were ▁selected . ▁ ▁He ▁then ▁clock ed ▁a ▁new ▁personal ▁best ▁of ▁ 1 : 4 3 . 6 2 ▁at ▁Li ège ▁on ▁ 5 ▁July . ▁He ▁improved ▁further ▁to ▁ 1 : 4 3 . 1 5 ▁two ▁days ▁later ▁at ▁the ▁He us den - Z older ▁Night ▁of ▁Athletics , ▁breaking ▁the ▁Ken yan ▁junior ▁record ▁previously ▁held ▁by ▁ 2 0 1 1 ▁World ▁Youth ▁Champion ▁Leonard ▁K osen cha . ▁Only ▁two ▁other ▁athlet es ▁had ▁run ▁faster ▁in ▁ 2 0 1 2 . ▁Nevertheless , ▁Rot ich ▁said ▁he ▁wasn ' t ▁satisfied ▁with ▁the ▁time . ▁ ▁Rot ich ▁made ▁his ▁Diam ond ▁League ▁debut ▁on ▁ 2 0 ▁July ▁at ▁Mon aco . ▁He ▁won ▁the ▁race ▁in ▁another ▁new ▁personal ▁best ▁of ▁ 1 : 4 3 . 1 3 , ▁be ating ▁K osen cha ▁in ▁a ▁close ▁finish . ▁The ▁field ▁also ▁included ▁American ▁Du ane ▁Sol omon , ▁who ▁went ▁on ▁to ▁place ▁fourth ▁at ▁the ▁Olympics ▁three ▁weeks ▁later , ▁and ▁Sud an ' s ▁ 2 0 1 1 ▁World ▁Championship ▁silver ▁med all ist ▁Ab ub aker ▁K aki . ▁Rot ich ▁made ▁another ▁Diam ond ▁League ▁appearance ▁four ▁weeks ▁later ▁at ▁the ▁Stockholm ▁D N ▁Gal an , ▁placing ▁third ▁behind ▁Moh ammed ▁A man ▁and ▁Ta