	In 2018, Prespakis became captain of the Calder Cannons and won their best and fairest award with 113 out of a possible 120 votes. She was again named in the TAC Cup Girls Team of the Year and tied with Nina Morrison for the league best and fairest. She again competed at the 2018 AFL Women's Under 18 Championships; she shared the competition's most valuable player award with Morrison on 16 votes apiece, won Vic Metro's most valuable player award and was named in the All-Australian side. She played in an exhibition game for Victoria, acting as a curtain raiser for the E. J. Whitten Legends Game. Prespakis amassed 21 disposals in Victoria's win, the most of any player. Aside from under-18 competitions, she also played six matches for in the VFL Women's (VFLW).