Tuhia he haere tonu mo tenei whitianga - Ko Kulagin tetahi mema o nga roopu motu rangatahi o Ruhia. Ki nga kapa a-motu rangatahi o Ruhia, i purei ia i te 2010 FIBA Europe Under-16 Championship, te 2012 FIBA Europe Under-18 Championship, i reira ia he mema o te All-Tournament Team, te 2013 FIBA Under-19 World Championship
, me te 2014 FIBA Europe Under-20 Championship.