Oliver Marach defeated Andrey Kumantsov 7-6 7-6 in the Poland F1 round of 16 on clay.
Marach O. took it in straight sets.
Oliver Marach beat Andrey Kumantsov 7-6(5) 7-6(5). Umpiry, "Oliver Marach vs Andrey Kumantsov — Poland F1 Round of 16", https://umpiry.com/match/2010-05-17/kumantsov-vs-marach-poland-f1-r16?utm_source=cite (as of 17 May 2010).