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.

From the 2012 year Semenov Cup became the main prize of the European Underwater Rugby League.

In the 1st season, four strongest clubs of Europe take part at European Underwater Rugby League:  Swedish Malmo, Norwegian Molde, Danish Flipper and Russian Betta. The first winner of the European Underwater Rugby League, on the results of three rounds - became the Norwegian Molde. Competitions were held in three rounds, in Finland, Norway and Denmark.

In the 2nd season Swedish Polisen participated to Euroleague. Norwegian Molde was won European Underwater Rugby League the 2nd time. Competitions were held in three rounds, in Sweden, Norway and Denmark.

In the 3rd season Norwegian Akkaren and Austrian Wien participated to Euroleague. Norwegian Molde was won European Underwater Rugby League the 3rd time. Competitions were held in three rounds, in three European capitals: Stockholm, Oslo and Copenhagen.

In the 4th season Finish Tampere and Turkish EGE UWR  Wien participated to Euroleague. Norwegian Molde was won European Underwater Rugby League the 4th time. Competitions were held in three rounds in Hameenlinna, Molde and Copenhagen.

In the 5th season Germans TSV Malsch participated to Euroleague. Also 3 more teams wanted to participate too, but the decision of League Managers was that 10 teams is maximum for 3 Rounds tournament. Norwegian Molde was won European Underwater Rugby League the 5th time. Competitions were held in three rounds, in Copenhagen, Vienna and Tampere.

In the 6th season Germans DUC Krefeld, Danish Tudserne, Norwegian Egersund UVK, Greek Fysalis participated to the 1st ever Qualification Round. Qualification Round were held at Copenhagen. Tudserne and DUC Krefeld took 1st and 2nd place and participated to the Main League. Competitions were held in three rounds, in Krefeld, Malmo and Izmir. Danish Tudserne won European Underwater Rugby League for the 1st time.

In the 7th season Finish Urheilusukeltajat participated to Euroleague. Norwegian Molde was won European Underwater Rugby League the 6th time. Competitions were held in three rounds, in Helsinki, Krefeld and Copenhagen.