Valentini Grammatikopoulou defeated Katarzyna Piter 6-4 6-4 in the s-Hertogenbosch qualifying round 2 on grass.
Grammatikopoulou V. took it in straight sets.
Valentini Grammatikopoulou beat Katarzyna Piter 6-4 6-4. Umpiry, "Valentini Grammatikopoulou vs Katarzyna Piter — s-Hertogenbosch Qualifying Round 2", https://umpiry.com/match/2018-06-11/grammatikopoulou-vs-piter-s-hertogenbosch-q2?utm_source=cite (as of 11 June 2018).