Nikita Semenov was born on December 16, 1989 in the town of Naro-Fominsk. While still in school, he became interested in the underwater fighting-aquathlon. And the first underwater rugby matches he played for the team of the OCA. In 2004 he transferred to UWRC Betta.

As part of the capital city club Nikita played for five seasons, 49 games at the highest level and scored 7 goals. Became a five-time champion of Russia, two-time champion of Moscow, silver and bronze medalist of the Finnish Masters Series.On July 4, 2010 he died.

For the Junior team of Russia Nikita Semenov played 20 games and scored 12 goals. He became a two-time European champion (2007 and 2008). As well as a vice-champion of Europe (2006). At the Junior European Championship in 2008 was the captain of the Russian team. For the Russian national team Nikita performed at the European Championships in 2005 in Helsinki (Finland) and at the World Championships in 2007 in Bari (Italy). He has played 10 games and scored 1 goal.

The Nikita Semenov Cup in underwater rugby is played since 2010. In the first season two top Russian teams: Betta (Moscow) and Aquanaut (Tula) played the Cup in the finals to three victories. Cup winner was the home team of Nikita Semenov - Betta Moscow.

In the season 2012/13 four strongest clubs of Europe will compete for the Semenov Cup. Swedish Malmo,Norwegian Molde, Danish Flipper and Russian Betta.