# Antofagasta Challenger tennis tournament

> Live situation record from CLSTR: https://clstr.news/situations/antofagasta-challenger-tennis-tournament
> Updated: 2026-10-08T22:25:27.000Z. Sources: 4. Developments: 3.

The Antofagasta Challenger 75 tennis tournament in Chile saw significant participation from Brazilian players. Initially, Brazilian athletes José Pereira and João Schiessl successfully navigated the qualifying rounds to enter the main draw, joining a total of nine Brazilian competitors.

As the tournament progressed to the quarterfinals, Eduardo Ribeiro secured a comeback victory against the top seed, Gustavo Heide, with a score of 3/6, 6/3, and 6/4. Despite his defeat, Heide was projected to see a slight rise in the ATP rankings. Brazil maintained a strong presence in the competition, with five representatives—Thiago Wild, Felipe Meligeni, Matheus Pucinelli, João Lucas Reis, and Ribeiro—advancing to the singles quarterfinals.

In the doubles competition, the Brazilian duo of Eduardo Ribeiro and Marcelo Zormann secured the title after defeating Mexico’s Alan Magadan and Peru’s Alexander Merino with a score of 6-1, 6-3. This victory marked the tenth career Challenger doubles title for Zormann and the sixth for Ribeiro. The win is expected to significantly improve their rankings, with Zormann projected to reach 110th and Ribeiro reaching a career-high of 118th.

In the singles category, Thiago Seyboth Wild advanced following a 6-4, 6-1 semifinal victory over Argentina’s Lautaro Midón. Midón’s performance throughout the tournament is expected to result in a significant rise in his ATP ranking.

## Timeline

### 2026-10-08: Eduardo Ribeiro and Marcelo Zormann win Antofagasta Challenger doubles title

Brazilian players Eduardo Ribeiro and Marcelo Zormann won the doubles title at the Antofagasta Challenger 75 in Chile, defeating Alan Magadan and Alexander Merino in the final.

2 sources. https://clstr.news/cluster/eduardo-ribeiro-and-marcelo-zormann-win-antofagasta-challenger-doubles-title

### 2026-10-08: Eduardo Ribeiro defeats Gustavo Heide to reach Antofagasta quarterfinals

Eduardo Ribeiro defeated top seed Gustavo Heide 3/6, 6/3, 6/4 to reach the quarterfinals of the Antofagasta Challenger in Chile.

2 sources. https://clstr.news/cluster/eduardo-ribeiro-defeats-gustavo-heide-to-reach-antofagasta-quarterfinals

### 2026-10-05: Tennis: Results from Braga Open and Antofagasta Challenger

Portuguese players face exits at the Braga Open, while Brazilian qualifiers José Pereira and João Schiessl advance to the main draw of the Antofagasta Challenger in Chile.

3 sources. https://clstr.news/cluster/tennis-results-from-braga-open-and-antofagasta-challenger

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Cite as: Antofagasta Challenger tennis tournament. CLSTR, https://clstr.news/situations/antofagasta-challenger-tennis-tournament