Riedi reboots: Swiss storms to Busan Challenger title | ATP Tour

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Riedi reboots: Swiss storms to Busan Challenger title

Safiullin claims Oeiras Open

April 20, 2026

Leandro Riedi’s title run at last week’s Busan Open underscores a step forward in his comeback from injury.

The Swiss shut down his 2025 season after reaching the third round of the US Open as a qualifier. Riedi then announced he needed groin surgery, his third surgery in a 13-month span.

Now on the comeback trail, the 24-year-old entered Busan with a 6-8 season record and following his triumph, Riedi is up 40 places to No. 129 in the PIF ATP Rankings Riedi rallied past Buyunchaokete 3-6, 6-3, 6-2 in Sunday’s hard-court final. A five-time Challenger champion, Riedi’s latest title is his first at any level since January 2024.

Believe it, Leandro! ❤️#ATPChallenger | 🇰🇷 Busan pic.twitter.com/5eOu51ZLCx

— ATP Challenger (@ATPChallenger) April 19, 2026

Riedi was not the only player to triumph after missing an extended part of the 2025 season. Roman Safiullin, who also did not compete post-US Open, won the Challenger 125 event in Oeiras, Portugal, where he downed top seed Valentin Royer 6-1, 6-2 in the final.

“I never imagined [winning the tournament],” said Safiullin. “I had to fight in every match since qualifying. I felt a lot of difficulty at the beginning of the main draw and in the quarter-finals I faced a match point [against Jaime Faria]. I had many problems throughout the tournament and I tried to find solutions.”

A qualifier into Oeiras, the former No. 36 was competing in just his sixth event of the season. Safiullin extended his perfect Challenger final record to 7-0.

Roman Safiullin wins the Oeiras Challenger.” style=”width:100%” src=”https://www.atptour.com/-/media/images/news/2026/04/21/02/18/safiullin-oeirasch-2026.jpg”>
^{Roman Safiullin wins the Oeiras Challenger. Credit: FPT}

Dellien delights home crowd with emotional victory
Hugo Dellien earned one of the most memorable victories of his life by winning the Bolivia Open, the highest level of tournament in his home country. The 32-year-old treated the home fans to a 6-4, 7-5 final victory against Juan Carlos Prado Angelo. Dellien is a 15-time Challenger champion who has been as high as No. 64 in the PIF ATP Rankings.

Hugo Dellien celebrates winning the Bolivia Open.” style=”width:100%” src=”https://www.atptour.com/-/media/images/news/2026/04/21/02/21/dellien-santacruzch-2026.jpg”>
^{Hugo Dellien celebrates winning the Bolivia Open. Credit: Bolivia Open}

Sun shines at home in China
China’s Sun Fajing also won on home soil with his victory at the Wuning Challenger II. The 29-year-old overcame Australian Li Tu 5-7, 6-4, 7-5 in the championship match to claim his second Challenger title. At No. 213 in the PIF ATP Rankings, Sun is the third-highest ranked Chinese player, behind Wu Yibing and Buyunchaokete.

Tabur claims first Challenger title
Clement Tabur won his maiden Challenger title at the Tallahassee Tennis Challenger in Florida, securing his rise to a career-high No. 167. The Frenchman led Joao Lucas Reis Da Silva 6-4, 1-0 when the Brazilian retired due to a right shoulder injury.

Next stop: 🇰🇷🇺🇸🇮🇹🇰🇿🇨🇮

Follow the action ➡️ https://t.co/zdmegU414m#ATPChallenger pic.twitter.com/H0leIyiIkp

— ATP Challenger (@ATPChallenger) April 20, 2026