Brown achieved victory in his 67-kilogram division after his rival on duty, Jamaican Joshua Frazer, did not appear on the tarmac of the Stark Arena in this capital.
His next fight will be on October 28 against Shain Barnsley Boniface, from Seychelles, seeded directly in the second round.
Hours before, Osvel Caballero opened with triumph the performance of the Antillean squad against the Azeri Umid Rustamov, whom he defeated by a unanimous decision of the judges 5-0 (30-27, 30-27, 30-27, 29-28 and 29-28).
The Cuban representative of 57 kilograms will be measured in his next fight against the Indian Sajjad Mohammadpour, another who will have his first presentation in the second phase of the fight whose preliminary matches will last until November 2.
Caballero and Brown, both debutants on World Cup stages, make up the team of eight fighters led by Tokyo 2020 Olympic stars Andy Cruz, Roniel Iglesias and Julio César La Cruz.
Precisely, the two-time world champion Cruz (63.5 kg) will see action tomorrow against Panamanian Jonathan Miniel, followed by Yoenlis Hernández (75 kg) against Brazilian Wanderlei Pereira
The Navy of the Greater Antilles will try to improve the harvest of three golden awards from the Yekaterinburg joust in 2019, on the way to expanding the historical total of 77 gold, 35 silver and 26 bronze medals.
ef/jha/rps