"Flores has emerged as one of his team's stars, celebrated for making the hoops from way out of the scoring box."
-- Ginny Weasley's overview of the semi-finalists, Daily Prophet, 11 July 2014 (Pm)
Brazil won against the Haitian National Team in their first match of the tournament, the Chasers unable to score more than 100 points due to the Haitian Keeper's valiant efforts (undone by Haiti's disqualification). They were then victorious in a ill-tempered "grudge" match against Wales in the quarter-finals, where Flores and fellow Chasers Alejandra Alonso and Fernando Diaz gave another exciting performance for the spectators (Pm).
The semi-final against the United States ran over two days but was finally won by Brazil (420 points to 310). However, in the end, the brilliance of veteran Bulgarian National Team Seeker Viktor Krum meant that Brazil lost in the final - in spite of spectacular goals from Flores during the match (Pm).
Spectacular long-distance goal scoring
Other canon notes and references
Gonçalo is the Portuguese form of the Spanish name Gonzalo, derived from the medieval name Gundisalvus, itself derived from the Germanic name gund ("war") plus Latin salvus ("whole, safe") (Baby Namespedia).
Flores derives from the Latin florus meaning "to flourish or bloom" (Internet Surname Database).
As he comes from Brazil, Flores possibly attended the Castelobruxo Wizarding School.
From the Web
Screenshots of the Daily Prophet's coverage of the 2014 Quidditch World Cup: http://imgur.com/a/AXutv