Mira Potkonen knocked out Turkish Esra Yildiz in the semi-finals of the women's 60-pound Olympic boxing series.
The semi-finalist knows at least a bronze medal in boxing.
Potkonen won the match with a scattered verdict 3–2.
The contract was hampered by a warning received by a Finn in the third installment.
The Nokia boxer made history, as she is the first Finnish woman to win a medal in two consecutive Summer Olympics.
In the semi-finals, Potkonen will face Brazilian Beatriz Ferreira.
The match is scheduled for Thursday at 8.15.