POZNAN/STARNBERG, June 20, 2026

Gustavo Heide made history on Saturday by becoming the first Brazilian player to win the Enea Poznan Open ATP Challenger, defeating Argentina’s Facundo Diaz Acosta 6-2, 6-2 in a commanding singles final.

Played in front of a packed Centre Court at Park Tenisowy Olimpia on a sweltering afternoon in Poznan, the championship match lasted just 83 minutes as Heide produced one of his best performances of the season to capture the biggest title of his career.

The final marked only the second all-Latin American title match in the tournament’s history. Diaz Acosta arrived as the favorite, having defeated Heide in both of their previous meetings, including the final of the ATP Challenger event in Francavilla al Mare just a month earlier. The Brazilian, however, seized his opportunity for revenge in emphatic fashion.

Despite the challenging heat, Heide controlled the match from the outset with aggressive, confident tennis. The world No. 187 consistently put pressure on his Argentine opponent and never allowed Diaz Acosta to settle into a rhythm, racing to a straight-sets victory.

No. 6⃣ secured 🏆

Gustavo Heide avenges his Francavilla al Mare final defeat with a commanding 6-2, 6-2 victory over Diaz Acosta in Poznan! 👏#ATPChallenger | @poznanopen pic.twitter.com/SAvH2Gihi0

— ATP Challenger (@ATPChallenger) June 20, 2026

“I’m very happy. I played well all week,” said Heide after lifting the trophy. “Facundo is a tough opponent, but today I played better and managed to get my revenge after losing to him in the final in Italy last month. I also loved the support from the Poznań crowd throughout the tournament.”

For Diaz Acosta, the defeat ended a strong week in which he had been seeking his fourth Challenger title of the season.

“It was still a very good week for me despite losing the final,” the Argentine said. “I’ll remember the good matches and the way I competed. He prepared extremely well and played an incredible match, making me feel uncomfortable throughout. Of course I’m disappointed, but overall I can take many positives from this tournament.”

The victory represents a significant milestone in Heide’s career. Not only is he the first Brazilian champion in the history of the Enea Poznan Open, but the Challenger 100 title is also the highest-level tournament triumph of his career and his first Challenger title on European soil. His previous three Challenger trophies had all come at Challenger 75 events in South America.

The title continues a remarkable run of form for the 23-year-old from Sao Paulo, who has now won 18 of his last 22 matches. The result will lift him to a career-high ATP Ranking of No. 138 when the new rankings are published.

There was little time to celebrate, however. Shortly after receiving the winner’s trophy, Heide revealed that he was heading straight to the airport for his flight to London, where he will begin his Wimbledon qualifying campaign.

“In three hours I have a flight to London,” he said with a smile. “I’ll celebrate the victory there.”