The first judo medals of the 2016 Olympics were handed out on Saturday, and Paula Pareto made history by becoming the first Argentine -- male or female -- to win Olympic gold in judo.
Pareto, who previously won bronze in 2008, beat South Korea's Jeong Bo-Kyeong in the women's 48kg final.
In the final of the men's 60kg division, Russia's Beslan Mudranov and Kazakhstan's Yeldos Smetov fought to a scoreless tie at the end of regulation. In the golden score period, Mudranov recorded a waza-ari on his opponent to win the match and earn Russia's first gold medal of these Olympics.
Entering the day, Kazakhstan had never won a medal in judo. By the end of the day, they would have two. Smetov received silver, while Otgontsetseg Galbadrakh, a Mongolian-born judoka who switched nationalities to represent Kazakhstan last year, earned one of the bronze medals in the women's 48kg contest.
Upsets reigned supreme in Saturday morning's preliminary rounds. The top seeds of both tournaments -- South Korea's Kim Won-Jin on the men's side, and Mongolia's Urantsetseg Munkhbat on the women's side -- went down in the quarterfinals and were relegated into the repechage for a shot at bronze. The defending Olympic champion of women's 48kg, Sarah Menezes of Brazil, also lost in the quarterfinals.
Munkhbat and Menezes ended up head-to-head in the repechage, with the match going into a golden score period after being tied at the end of regulation. In the golden score period, Munkhbat successfully got Menezes in an armbar and forced Menezes, who appeared to be in pain afterwards, to submit.
Brazil would end the day medal-less in judo after Felipe Kitadai was also eliminated in the repechage.
Gold: Beslan Mudranov (RUS)
Silver: Yeldos Smetov (KAZ)
Bronze: Naohisa Takato (JPN)
Bronze: Diyorbek Urozboev (UZB)
Gold: Paula Pareto (ARG)
Silver: Jeong Bo-Kyeong (KOR)
Bronze: Ami Kondo (JPN)
Bronze: Otgontsetseg Galbadrakh (KAZ)