The men's final at Qingshui River Park was cancelled due to heavy rain, resulting in Nakumara topping the podium due to his semi-final score of 93.20 points. 

The silver medal went to Declan Brooks of Britain with 92.00 and Nick Bruce of the United States received bronze for 91.20.

The result gave 17-year-old Nakumara victory in the overall standings with 26.200 points, followed by Logan Martin of Australia on 24.100 and Justin Dowell of the US on 23.400.

Another teenager, America's 18-year-old Hannah Roberts, then emerged victorious in the women's competition with 93.80, followed by compatriot Perris Benegas with 90.20 and Charlotte Worthington of Britain on 88.40. 

Roberts also subsequently became the overall World Cup winner, finishing the season with 30.000 points.  

Benegas took second place again with 26.200 points and Germany's Lara Marie Lessmann came third on 24.400. 

Matthias Dandois of France finished second in Chengdu to top the overall BMX Flatland World Cup leaderboard.

He scored 89.75 points, with Japan's Moto Sasaki in front of him on 91.75 and Dominik Nekolný of the Czech Republic behind him with 87.00. 

Dandois topped the World Cup podium with a total of 27.000 points, followed by Nekolný on 26.400 and Moto on 24.100. 

Japan's Misaki Katagiri was the winner in the women's flatland contest with 84.75 points, while Irina Sadovnik of Austria came second on 71.00 and Julia Preuss of Germany third with 67.25.

Katagiri was also named the overall women's BMX Flatland World Cup winner with 30.000 points.

Sadovnik was in second place with 26.200 points and Céline Vaes of France third on 22.100.

Today's action concluded the FISE World Series season.