Rubuta ci gaba don wannan sakin layi - Kafin wasannin Olympics na bazara na 2008 a Beijing, Blas ya sami nasara a matakin kasa da kasa a cikin judo, bayan da ya sami lambar tagulla a wasannin Pacific na 2003 da 2007, kuma an dauke shi sunan gida a Guam. Shiga cikin wasan maza masu nauyi a Wasannin ya kasance na bakwai a cikin nau'in +100 kg a Gasar Zakarun Duniya ta Judo ta 2007
Ka yi haƙuri. An kuma zaɓe shi a matsayin mai ɗauke da tuta na wakilan ƙasashensa guda shida. A cikin nauyin da aka rubuta a hukumance, ya kasance mafi nauyi a gasar ba kawai a wasannin Olympics na Beijing ba, amma mafi kusantar kowane wasannin Olympic na zamani, kamar yadda ya zarce rikodin nauyin Olympic na baya da. Ya yi rashin nasara a wasan farko da Lasha Gujejiani na Georgia, yana shan azaba saboda jinkiri, kuma daga baya ya yi iƙirarin cewa kawai "ya daskare". Ya cancanci yin maimaitawa saboda Gujejiani ya kai wasan kusa da na karshe na babban gasar, amma Daniel McCormick na Amurka ya doke shi, bayan da aka sake masa hukunci, a wannan karon don fita daga cikin iyakoki a cikin sakan 30 na karshe. A shekara ta 2009 ya zama na biyu, a bayan Cedric Medeuf na Faransa a wasan maza + 100 kg a gasar US Open ta wannan shekarar.