By winning which ATP Tour 500 title did Garín become the sixth-ever Chilean man in the top 20?
2020 Rio Open
2020 Córdoba Open
2019 BMW Open
2019 U.S. Men's Clay Court Championships
Answer
By winning the 2020 Rio Open, Cristian Garín became the sixth-ever Chilean man to rank in the top 20. Garín's win was a major upset, as he was seeded 24th in the tournament and had never won an ATP Tour 500 title before.
The Rise of Cristian Garín: A Tennis Sensation from Chile