 Radzionau anokodzera kumakwikwi evarume emamita 50 akasunungukapa2008 Summer Olympics muBeijing, nekumisikidza rekodhi idzva reBelarus uye kubvisa FINA B-standard yekupinda nguva ye22.72 kubva kumakwikwi emunyika muguta rake rekuzvarwa reMinsk. Akadenha vamwe vanoshambira vanomwe mumutambo wechipfumbamwe, kusanganisira Camilo Becerra wokuColombia, uyo akahwina mitambo yeOlympic katatu. Radzionau akakunda mutakuri wetangi wePhilippine-America uye mugari weFlorida Daniel Coakley kuti atore nzvimbo yechishanu nemakumi mana ezana remasekondi 0.04, achinyora zvakanakisisa zvake zve22.65. Radzionau akaisa makumi maviri nematanhatu kubva pavanoshambira 97 mumatanho ekutanga. 