Winning the tournament brought Medvedev over $ 1.5 million in prize money, as well as 1,500 rating points.
The Russian became the winner of the tournament, winning all five matches.
In the decisive meeting, he beat Austrian Dominik Tim with a score of 4: 6, 7: 6, 6: 4.
The meeting lasted 2 hours 43 minutes.
Earlier, Kamelson called Medvedev's championship in the ATP Final Tournament a great victory for Russian sports.