Nikita Mashtakov advanced past Kirill Kivattsev in the 1/8 (second round) of the M25 Poznan tournament on August 27, 2026 at the clay courts of Akademicki Zwiazek Sportowy in Poznan. Mashtakov rode a six-match winning streak and followed up his prior 6:3, 6:3 victory over Tom Zeuch to move on. Kiri…