Nyorai kuenderera mberi kweiyi ndima - Kalniņš akakodzera kumakwikwi evarume emamita zana akasununguka
, senhengo yechikwata chekushambira cheLatvia, kumaOlympics ezhizha ra2012 muLondon, nekupfuura nguva yeFINA B-yakajairwa ye50.18 masekondi kubva kuEuropean Junior Championships. Akadenha vamwe vanoshambira vanomwe pakupisa kwechina, kusanganisira muBritish akaberekerwa muParaguayan swimmer Benjamin Hockin. Kalniņš akamhanya kuenda kunzvimbo yechipiri, uye akanyura pasi pe 50-yechipiri chipingamupinyi nechikamu chechina chechipiri (0.25) kumashure kweTurkey Kemal Arda Gürdal, mune yake yega yakanakisa ye49.96. Kalniņš akakundikana kuenda kumasemifinal, sezvo akaisa makumi matatu mumakwikwi ekutanga.