24-Year-Old Wallin Will Upset Kolar

Olle Wallin will advance against Zdenek Kolar at the Tulln Challenger on September 8, 2026. The 24-year-old Wallin will upend the higher-ranked opponent using his 123-68 career record and his rise from a highest career ranking of 368 to claim the advancing slot. Zdenek Kolar will suffer the upset d…