Belgium's Matthias Casse, second left, triumphed in the men's under-81kg event at the Portugal Grand Prix ©IJF

Olympic bronze medallist and world champion Matthias Casse triumphed in the men's under-81 kilograms division at judo's Grand Prix in Almada in Portugal, meaning the first nine events at the tournament have been won by athletes from nine different nations.

Belgian Casse faced surprise finalist Oskari Makinen of Finland for gold at the Municipal Sports Complex of the City of Almada, with his opponent ranked 115th in the world.

Casse added a maiden Grand Prix victory to his list of honours, proving too strong for Makinen.

Kim Jong-hoon of South Korea saw off France's Nicolas Chilard to take the first bronze, before Japan's Yuhei Oino won the other against Guilherme Schmidt of Brazil.

The men's under-73kg decider was contested by two judoka featuring in their maiden final on the World Judo Tour.

A powerful uchi-mata from Uzbekistan's Murodjon Yuldoshev earned him victory against Salvador Cases Roca from Spain.

Joan-Benjamin Gaba of France earned a podium finish by beating Mongolia's Sod-Erdene Gunjinlkham, but there was better luck for the latter compatriot Ankhzaya Lavjargal who triumphed over Moldova's Petru Pelivan to finish jointly third.

Dutch junior world champion Joanne Van Lieshout came out on top in the women's under-63kg event, securing a first gold on the World Judo Tour at the expense of Croatia's Iva Oberan.

Renata Zachova of the Czech Republic denied Croatia a second place on the podium by beating Katarina Kristo in the first bronze-medal match, and she shared third place with Romania's Florentina Ivanescu, who defeated Spaniard Cristina Cabaña Pérez.

The day's other competition came in the women's under-70kg, with Croatia's Lara Cvjetko overcoming Szabina Gercsák of Hungary in the final.

Brazil's Maria Portela earned bronze by beating South Korea's Han Hee-ju, Spain's Ai Tsunoda Roustant did likewise in her clash against the Dutch Jorien Visser.

Croatia's two silver medals at the Grand Prix have them top of the medals table going into the final day, with eight other countries also having one gold to their name.

Competition is set to conclude tomorrow with women's under-78kg and over-78kg competition, plus the men's under-90kg, under-100kg and over-100kg.