Whakakihia te rerenga e whai ake nei: I whanau a Sebastián Crismanich i Corrientes, Corrientes Province, i roto i te whanau manene o Croatia (). Ko tōna tuakana, ko Mauro, he kaiwhakaako taekwondo rongonui hoki, i toa i te mētara parahi i te taumaha rere a nga taane (i raro i te 58 kg) i te
Ko te 2009 World Taekwondo Championships i Copenhagen.