Nyorai kuenderera mberi kweiyi ndima - MunaGunyana 2011, Horakova akaedzwa aine chirwere chakarambidzwa chinonzi clenbuterol paakanga achitora chikamu mumakwikwi efourcross mountain biking kuWorld Championships. Musi wa 28 Chikumi 2012 Union Cycliste Internationale yakanga yasarudza zviri pamutemo kurayira Horakova makore maviri kumiswa kubva kuUCI World Championships
, uye zvinotokosha zvikuru, kubva kuMitambo yeOlympic muLondon, pasinei nokukwikwidzwa neCzech Cycling Union kutanga kwegore iroro.