Complex sentence: He lost his first match at the PanAmGames 2007 but later qualified to compete at the 2008 Summer Olympics in the Flyweight division beating among others Braulio Avila.
Split into simpler sentences: He lost his first match at the PanAmGames 2007. Later he later qualified to compete at the 2008 Summer Olympics in the Flyweight division beating among others Braulio Avila.