Coric beats Wawrinka, claims season-leading 4th Challenger title

Borna Coric continued his resurgence on the ATP Challenger Tour Sunday, when he captured a season-leading fourth title at that level.

The Croatian overcame former World No. 3 Stan Wawrinka 6-7(5), 6-3, 7-6(4) and a series of rain delays to win the Open Aix Provence Crédit Agricole after a thrilling three-hour, 11-minute final. 

"I'm happy to start to play better tennis in the past couple months," said Coric, who is up to No. 84 in the PIF ATP Rankings. "I've been working hard, that's the most important thing for me and to stay healthy."

BORN-A CHAMPION 💪@borna_coric reigns supreme at @OpenduPaysdAix, clinching a tour-leading 4th Challenger title of the season! #ATPChallenger pic.twitter.com/GpDPt7dws4

— ATP Challenger Tour (@ATPChallenger) May 4, 2025

Coric, 28, holds a 22-3 season record at ATP Challenger level. He won three consecutive titles spanning from February to March and held a 16-match winning streak, which was ended by Wawrinka at the Naples Challenger. Five weeks on from that defeat, Coric outlasted the 40-year-old for just his second win against the Swiss in their six meetings at all levels.

Wawrinka was bidding to become the oldest Challenger champion in history.

Michelsen wins first clay-court title with dominant week in Estoril
American Alex Michelsen celebrated a milestone moment at the Millennium Estoril Open. The 20-year-old captured his first clay-court title and third Challenger triumph at the Portuguese event, where he did not drop a set all week.

Michelsen, now tied at his career-high No. 32 in the PIF ATP Rankings, defeated Italian qualifier Andrea Pellegrino 6-4, 6-4 in the championship match.

"My mindset has gotten better on clay since last year. I was kind of dreading it, but now I'm enjoying it," Michelsen said. "I got here super early because I lost first round in Madrid, so I probably had five, six days of preparation before I played, so I had really good preparation this week."

^{Alex Michelsen wins the Estoril Challenger. Credit: Mike Lawrence/ATP Challenger Tour}

In other Challenger action, French lefty Terence Atmane earned his second title in three weeks with a triumph at the Guangzhou Nansha International Challenger. The 23-year-old defeated Tristan Schoolkate 6-3, 7-6(4) in the final. Hungary's Zsombor Piros did not drop a set all week en route to claiming the Ostra Group Open By Purposia, where he beat Hady Habib 6-3, 6-2 in the final.

Former World No. 17 Cristian Garin won his fifth Challenger title and first since 2018. The Chilean was crowned champion at the Danube Upper Austria Open powered by SKE following a hard-fought week during which he needed a deciding set in four of his five matches. Garin downed countryman Tomas Barrios Vera 3-6, 6-1, 6-4 in the final.

Argentine Santiago Rodriguez Taverna won the Ano II Brasil Tennis Open in Porto Alegre, where he escaped Nikolas Sanchez Izquierdo 4-6, 6-4, 7-6(6) in the final. Rodriguez Taverna has won nine of his past match following matches. He was a finalist at the previous week's San Miguel de Tucuman Challenger.