[3] Dubov played again in the World Youth Under-16 Chess Olympiad and won the team gold and the individual bronze on board one.

[6] In January, Dubov took part in the Tata Steel B tournament in Wijk aan Zee, where he scored 7½/13 points (+4-2=7) finishing fifth out of fourteen participants.

[15] In December, Dubov won the World Rapid Chess Championship ahead of Carlsen, Shakhriyar Mamedyarov and Hikaru Nakamura.

Dubov was selected as the Organizer's Nominee for the FIDE Grand Prix 2019, a stage in qualification for the World Chess Championship 2020.

After an upset victory[16] over the highest ranked player, Anish Giri, Dubov was eliminated[17] from the Moscow Grand Prix tournament in the quarter-finals by American grandmaster Hikaru Nakamura.

Once again he was the lowest seeded player in the tournament, but after upset wins over Teimour Radjabov and Peter Svidler, he was in the semifinals facing Jan-Krzysztof Duda.

[19] Dubov won the Lindores Abbey Rapid Challenge on 3 June, beating Ding Liren in semi-finals and Hikaru Nakamura in the final after the match went to Armageddon time control.

Dubov responded that he considered it to be a match between two individuals, and counter-argued that working with Carlsen would improve his chess and hence help the Russian team.

Dubov competed in the Tata Steel Chess Tournament 2022; however, he was forced to forfeit his final three games due to testing positive for COVID-19.