The Iranian Karate Team’s captain, Zabihollah Porshib, won a gold medal in the weight category of -84 after beating his Kazakh rival in Dubai on Sunday.
Also, Iranian female karateka Shima Al-e Sa'adi received a silver medal in the weight category of -67.
Sara Bahmaniar, Rozita Alipour, Bahman Askari and Mehdi Khodabakhshi each received bronze medals.
The Karate 1-Premier League of 2020 started in Dubai on Friday with more than 600 competitors from 85 countries in participation.
Karate is due to make its Olympic debut in Tokyo 2020. There will be eight karate gold medals up for grabs at Tokyo - men's kata, women's kata and three different weight classes for both men's and women's Kumite events.
At the event, Iran bagged one gold, one silver as well as four bronze medals.