 Nyorai kupfuurira kweiyi ndima - Gudmunsson akakwikwidza mumakwikwi evarume emamita 100 ekumhanya pachipfuvapaMitambo yeOlympic yeZhizha ya2000 muSydney. Akawana FINA B-cut ye 1:04.57 kubva kuMare Nostrum kusangana muBarcelona, Spain. Akadenha vamwe vanoshambira vanomwe mumakwikwi mana, kusanganisira vakwikwidzi veOlympic kaviri Valērijs Kalmikovs wekuLatvia naArsenio López wePuerto Rico. Achipinda mumakwikwi ane nguva yakakurumidza-yakasimwa, akapera pasi kuti abate rusvingo rwechitanhatu mu 1:05.55, 1,5-yechipiri kushomeka kubva kune vatungamiri vakabatana Kalmikovs naLopez nguva yakaenzana ye 1:04.02. Gudmundsson akaisa makumi mashanu nemaviri akazara pazuva rekutanga rekutanga. 