Buuxi weedha soo socota: Deicmans wuxuu u qalmay laba dhacdo oo dabaasha ah Ciyaaraha Olombikada Xagaaga ee 2004 ee Athens, isagoo ka sarreeya waqtiyada gelitaanka caadiga ah ee FINA B oo ah 2:03.77 (200 m shaqsiyeed) laga bilaabo FINA World Championships ee Barcelona iyo 4:28.44 (400 m shaqsiyeed) laga bilaabo
Horyaalka Yurub ee Madrid. Tartanka shakhsiga ah ee 400 m, Deicmans wuxuu taabtay Filibiin Miguel Molina si uu u jabiyo caqabadda 4:30 wuxuuna qabsaday kaalinta toddobaad ee kuleylka labaad afar ilbiriqsi, waqtiga 4:29.17. Tartanka 200 m ee shakhsiga ah, Deicmans wuxuu la tartamay toddobo dabaasha kale oo ku jiray heerkulka afaraad, oo ay ku jiraan laba jeer oo Olombikada ah Jeremy Knowles oo ka socda Bahamas iyo Ioannis Kokkodis oo ka socda Giriigga. Wuxuu u gudbay kaalinta shanaad 0.39 ilbiriqsi oo ka dambeeya Barbados 'Bradley Ally, isagoo jabiyay rikoorka Latvia ee 2:03.68. Deicmans wuxuu ku guuldareystay inuu u gudbo semi-finalka, maadaama uu kaalinta shan iyo labaatanaad ka galay guud ahaan horudhaca.