The Islamic Republic of Iran stood atop the podium in the team chart, having won three gold, two silver and seven bronze medals.
Japan claimed two gold medals, three silvers and five bronzes, and was named the vice champion.
Turkey finished in the third place with two gold, three silver and one bronze medals.
On Sunday, Amir Mehdizadeh overcame his Turkish opponent Eray Samdan 3-1 in the final bout of men’s minus 60-kilogram category to win the gold medal.
Mehdi Khodabakhshi grabbed Iran’s second gold of the day after he overpowered a karateka from Macedonia 7-3 in the title challenge of the minus 84-kilogram section.
Saleh Abazari stole the show in the men’s over 84-kilogram weight class, after he defeated a Dutch contestant.
Moreover, Seyyed Ali Karimi and Bahman Asgari took two silver medals in the minus 67-kilogram and minus 75-kilogram divisions.
Earlier in the competitions, Taravat Khaksar in the women’s minus 55-kilogram, Iran’s three-a-side kata team comprising Elnaz Taqipour, Shadi Ja’fari and Najmeh Qazizadeh, and Isfahan outfit (Fatemeh Chizari, Maryam Karimi and Zohreh Karimkhani) earned three kata bronze medals.
Additionally, Zabihollah Pourshib in the minus 84-kilogram, Saman Heydari in the over 84-kilogram and Arak’s team (Abolfazl Shahrjerdi, Ali Zand and Milad Delikhoun) took three bronze medals in the men’s kata contests.
The Karate1 Premier League - Istanbul 2018 kicked off on June 8, and concluded on June 10, 2018.