Christopher Heyman defeated Piotr Grynkowski 3-6 6-1 6-3 in the Turkey F20 round of 32 on hard.
Heyman C. came through in three sets.
Christopher Heyman beat Piotr Grynkowski 3-6 6-1 6-3. Umpiry, "Christopher Heyman vs Piotr Grynkowski — Turkey F20 Round of 32", https://umpiry.com/match/2015-05-18/grynkowski-vs-heyman-turkey-f20-r32?utm_source=cite (as of 18 May 2015).