Complex sentence: Shimizu defeated Algeria's Mohamed Ouadahi 17--15 in the quarter-finals but lost to Great Britain's Luke Campbell 20--11 in the semi-finals which won him the bronze medal.
Split into simpler sentences: Shimizu defeated Algeria's Mohamed Ouadahi 17--15 in the quarter-finals. He lost to Great Britain's Luke Campbell 20--11 in the semi-finals to secure the bronze medal.