Konstantin Kravchuk defeated Yannick Mertens 6-2 5-7 6-2 in the Sofia qualifying round of 16 on hard. Konstantin Kravchuk moved ahead in the head-to-head, 2–1.
Kravchuk K. came through in three sets.
Konstantin Kravchuk beat Yannick Mertens 6-2 5-7 6-2. Umpiry, "Konstantin Kravchuk vs Yannick Mertens — Sofia Qualifying Round of 16", https://umpiry.com/match/2016-01-30/kravchuk-vs-mertens-sofia-q16?utm_source=cite (as of 30 January 2016).