Mixed martial arts career
Between June, 2013 and August 2015 Nemkov accumulated a 4-0 record in Russian regional promotions, winning all 4 fights via stoppage. 
Rizin Fighting Federation
Rizin Fighting World Grand Prix 2015: Opening Round
In November 2015 the Japanese fight promotion (and successor to Pride Fighting Championships – Rizin Fighting Federation announced the brackets for a Heavyweight Grand Prix to be held Dec 29st and 31st.  It was announced Nemkov would make his Rizin debut vs Goran Reljic. He won the bout by knockout in the 1st round, advancing to the semi-finals 2 days later.
Rizin Fighting World Grand Prix 2015: Second Round
In the semi-finals Dec 31st he faced Jiří Procházka, losing via retirement at the end of the 1st (10 minute) round. Procházka would move on to face Muhammed ‘King Mo’ Lawal in the finals losing via KO (punches) in the 1st round.
April 17th, 2016 Nemkov fought Karl Albrektsson at Rizin 1, losing via split-decision.
Rizin Fighting Word Grand Prix 2016: Second Round
(After a fight in Russia for FNG) Nemkov would compete in Rizin vs Alison Vicente winning 55 seconds into the 1st round (TKO)
Fight Nights Global
Fight Nights Global 50: Emelianenko vs Maldonado
In the beginning of 2019, Nemkov signed a new, multi-fight contract with Bellator.
Article source: https://en.wikipedia.org/wiki/Vadim_Nemkov