<prompt> Koivumaki akakwanisa kupinda mumakwikwi echikadzi ehalf-lightweight 57 kg mu2008 Summer Olympics muBeijing, nekupinda pachinhanho chechishanu kubva ku2007 World Judo Championships  <response>: muRio de Janeiro, Brazil. Akasvika bedzi mumutambo wokutanga wechipiri, uko akarasikirwa neyokos mbiri kuChina Xu Yan. Nemhaka yokuti muvengi wake akapfuurira mberi mumasemi-fainari, Koivumaki akapa mumwe mukana wekukunda menduru yebronze nekukunda Lila Latrous weAlgeria, necoca uye nhepfenyuro yegoridhe, mumutambo wokutanga wokudzokorora. Zvinosuruvarisa, akapedza ari panzvimbo yechipfumbamwe chete, pashure pokurasikirwa nechiitiko chechipiri chokurwisana neJapan Aiko Sato, uyo akabudirira kuwana ippon uye yoko shiho gatame mat holds manomwe, mumaminitsi matatu. 