Curitiba challenger · ATP
Curitiba challenger 2026
ChallengerClayCuritiba, Brazil27 September – 4 October 2026Prize money: 107,000 USD49 matchesAltitude: 922 mCourt: Slow
Champion Guido Ivan Justo · Final: 6-1 3-6 6-3
Final rounds
| Final | Guido Ivan Justo vs Gustavo Heide | 6-1 6-4 |
| Semifinal | Gustavo Heide vs Pedro Boscardin Dias | 6-2 6-3 |
| Semifinal | Guido Ivan Justo vs Marcelo Tomas Barrios Vera | 4-6 6-4 6-3 |
| Quarterfinal | Gustavo Heide vs Lautaro Midon | 6-2 6-4 |
| Quarterfinal | Pedro Boscardin Dias vs Luis Augusto Queiroz Miguel | 6-3 5-7 6-2 |
| Quarterfinal | Guido Ivan Justo vs Gonzalo Villanueva | 6-2 6-4 |
| Quarterfinal | Marcelo Tomas Barrios Vera vs Matheus Pucinelli De Almeida | 6-1 3-6 6-3 |
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