ATP · Challenger 75
Antofagasta Challenger 2026 Tournament Results
In brief
Antofagasta Challenger 2026 is a Challenger 75 tournament on the ATP tour that started on October 5, 2026. The title went to Joao Lucas Reis Da Silva, who beat Thiago Seyboth Wild in the final (7-6(2) 1-6 6-2). The draw features 26 players from 8 countries. Best represented: Argentina (9). 25 matches played, 9 tie-breaks and one retirement. In 2025 the title went to Cristian Garin.
Bracket
Roll of honour
| Year | Champion | Runner-up |
|---|---|---|
| 2026 |  Joao Lucas Reis Da Silva | Thiago Seyboth Wild 7-6(2) 1-6 6-2 |
| 2025 |  Cristian Garin |  Facundo Diaz Acosta 2-6 6-3 6-3 |
Points to defend
Best results at the 2025 edition: those points drop off the rankings with the 2026 edition.
| Player | 2025 | Points |
|---|---|---|
| Cristian Garin | Title | 75 |
| Facundo Diaz Acosta | Final | 45 |
 Adolfo Daniel Vallejo | Semifinal | 27 |
| Joao Lucas Reis Da Silva | Semifinal | 27 |
 Alvaro Guillen Meza | Quarterfinal | 15 |
| Federico Agustin Gomez | Quarterfinal | 15 |
| Tomas Barrios Vera | Quarterfinal | 15 |
 Emilio Nava | Round of 16 | 8 |
The tournament in numbers
- Matches played
- 25
- Tie-breaks
- 9
- Matches to a deciding set
- 6
- 6-0 sets
- 1
- Retirements
- 1
Most games in a match: Miguel Tobon-Tomas Barrios Vera, 3-6 7-6(3) 7-6(2) (35 games).
Countries in the draw
| Country | Players | Best result |
|---|---|---|
| Argentina | 9 | Semifinal |
| Brazil | 8 | Title |
 Bolivia | 2 | Semifinal |
| Chile | 2 | Round of 16 |
 Uruguay | 2 | Round of 16 |
 Colombia | 1 | Quarterfinal |
 Dominican Republic | 1 | Round of 16 |
 Peru | 1 | R32 |
Points on offer
ATP points by round reached at this edition.
| Round reached | Points |
|---|---|
| Title | 75 |
| Final | 45 |
| Semifinal | 27 |
| Quarterfinal | 15 |
| Round of 16 | 8 |
| R32 | 3 |
R32
| Winner | Loser | Score |
|---|---|---|
| Murkel Dellien | Juan Estevez | 6-2 6-0 |
| Genaro Alberto Olivieri | Valerio Aboian | 6-1 6-4 |
| Nick Hardt | Gonzalo Villanueva | 7-5 3-6 7-5 |
| Thiago Seyboth Wild | Matias Soto | 6-3 6-4 |
| Matheus Pucinelli De Almeida | Alex Barrena | 7-5 6-3 |
| Tomas Barrios Vera | Franco Roncadelli | 6-4 6-2 |
| Pedro Boscardin Dias | Juan Bautista Torres | 6-2 7-6(2) |
| Felipe Meligeni Alves | Juan Pablo Varillas | 6-3 6-1 |
| Juan Carlos Prado Angelo | Joao Eduardo Schiessl | 6-2 6-2 |
| Guido Ivan Justo | Francisco Comesana | 6-7(6) 7-6(4) 6-1 |
Round of 16
| Winner | Loser | Score |
|---|---|---|
| Thiago Seyboth Wild | Murkel Dellien | 6-1 6-2 |
| Matheus Pucinelli De Almeida | Genaro Alberto Olivieri | 6-3 6-3 |
| Joao Lucas Reis Da Silva | Guido Ivan Justo | ret. 7-5 ret. |
| Felipe Meligeni Alves | Nick Hardt | 6-3 6-3 |
| Eduardo Ribeiro | Gustavo Heide | 3-6 6-3 6-4 |
| Lautaro Midon | Joaquin Aguilar Cardozo | 7-6(1) 2-6 7-6(9) |
| Miguel Tobon | Tomas Barrios Vera | 3-6 7-6(3) 7-6(2) |
| Juan Carlos Prado Angelo | Pedro Boscardin Dias | 6-2 6-3 |
Quarterfinal
| Winner | Loser | Score |
|---|---|---|
| Thiago Seyboth Wild | Felipe Meligeni Alves | 6-1 6-4 |
| Lautaro Midon | Eduardo Ribeiro | 6-2 6-1 |
| Joao Lucas Reis Da Silva | Matheus Pucinelli De Almeida | 6-4 7-6(1) |
| Juan Carlos Prado Angelo | Miguel Tobon | 6-2 6-2 |
Semifinal
| Winner | Loser | Score |
|---|---|---|
| Thiago Seyboth Wild | Lautaro Midon | 6-4 6-1 |
| Joao Lucas Reis Da Silva | Juan Carlos Prado Angelo | 6-3 6-4 |
Final
| Winner | Loser | Score |
|---|---|---|
| Joao Lucas Reis Da Silva | Thiago Seyboth Wild | 7-6(2) 1-6 6-2 |