Rumyantsev brought up the landmark with gold in the men's under 90kg category of the self-defence martial art, defeating Komroshoh Ustopiriyon of Tajikistan 1-0 in the final.
Serbia's Nikola Milosevic, who beat Shigeyuki Uehara of Japan, and Uzbekistan's Sukhrob Ustonayevm, who defeated Valentin Jourdan, shared bronze.
Meanwhile, Hikari Sugawara won the title in the women's freestyle wrestling under 58kg weight category, toppling Sumiya Erdenechimeg of Mongolia for the win.
Day 10: Hosts Korea power ahead as Walker sprints to 800m gold
Earlier, the bronze medals were claimed by Russia's Ekaterina Krasnova, who defeated Elena Turcan of Moldova, and Yulia Blahinya, who was stronger than Azerbaijan's Anzhela Dorogan.
I-chen Lee/Chia-hui Lin from Chinese Taipei won gold in the women's doubles in the table tennis tournament at the Kazan Tennis Academy.
In the final, the pair defeated Xiaoxi Che and Yue Jiang 4-3, while host nation duo Yana Noskova and Elena Troshneva claimed one of the sets of bronze medals.
Russian tennis player Victor Baluda, who took part in the men’s doubles with Konstantin Kravchuk, has said their victory over Belarusian duo Aliaksandr Bury - an Olympian last year - and Andrei Vasilevski was a perfect result.
The duo won the semi-final clash in straight sets 6-4 6-3.
“We knew those rivals and seriously psyched ourselves up for the game with them, one of them took part in the London 2012 Olympic Games, so that is why it is very cool to have beaten them," Baluda said.
He added that he was not disappointed with his defeat in the singles draw.
“I was absolutely concentrated on playing double," Baluda said. "The doubles competition features the same medal, so it is necessary to keep our chin up.
In the final, the Russians will play number one ranked Lee Hsin-han/Peng Hsien-yin from Chinese Taipei.
Zhiguo Liu won gold while Russian Nazar Luginets claimed silver in a tight men’s 10m air rifle finals. Another Russian Sergey Kruglov took bronze.
Russian canoeist Kirill Shamshurin, who won silver in the men's canoe, says he is aiming to win two more medals during his time in Kazan.
Shamshurin, along with Rasul Ishmuhamedov, Pavel Petrov and Vladimir Fedossenko, came off second best in the 1000 metres race, stopping the clock at 3 minutes 38.476 seconds. Winners a Ukraine set a time of 3:37.893, while bronze went to the Poles (3:38.619).
"It's nice to get a medal of the Universiade," said Shamshurin. "Ahead of me there are still two distances in Kazan - the 200 and 500 metres in the fours. I'll try to rehabilitate myself and take two gold medals. I have a personal plan for three medals, I want to do it."
Shamshurin added that his crew missed out on gold in the 1,000m after they failed to make a dash at finish.
"Today, we were psyched for a heavy finish, because we knew that our rivals speed up at this part of the race. Therefore, we tried to lay the groundwork in advance and went confidently ahead of the others. We were waiting for a finishing spurt, but failed. Maybe the weather affected us, I do not know," Shamshurin said.
Ruslan Albegov, the Russian weightlifter, has revealed that his Universiade gold medal was a wedding present for him.
Albegov, bronze medallist at the 2012 Olympic Games in London, won the over 105kg category in Kazan after lifting 459 kg on Saturday.
"I am very glad that I have this medal, but I am not going to take a break now. Tomorrow I will go to the gymnasium in Ossetia because I cannot relax. The world championship is ahead and I would not like to be unfit, I would like to gain more weight," Albegov said.
"On July 27 I will get married. We have been together for two years, and now I have decided to start an adult life. The Universiade medal and my result are good wedding presents for my family and me."
Albegov, who won gold in the European championships in April, added: "Personally I have three-four competitions this year. It is useful because every competition is experience whether it is the world championship or a local championship. Every medal costs a lot, both in terms of emotion and strength, and every medal is worth its weight in gold."
Day 4: Novoselov brothers win diving gold for Russia
Games will go ahead despite MERS outbreak, says FISU