The Russian Federation participated in the Tokyo Olympics, 2020 under the name of the Russian Olympic Committee. This committee represents Russia at the Olympics and is responsible for coordinating the country`s participation in the Games.

Option 2, Russian Federal Committee, is not the correct answer. There is no official committee by this name that represents Russia in the Olympics.

Option 3, Russian Sports Committee, is also not the correct answer. While there is a Russian Sports Ministry that oversees sports in the country, it is not the specific committee that represents Russia at the Olympics.

Option 4, Russian Republican Committee, is also incorrect. Russia is a federal state, not a republic, so this name would not be appropriate.

It is important to note that the Russian team`s participation in the Tokyo Olympics was under a specific name due to previous doping sanctions. The Russian Olympic Committee was allowed to compete, but the Russian flag and national anthem were not present at the Games.