Marious Zelba defeated Pavel Krainik 7-6 7-6 in the Mexico F5 round of 32 on hard. The upset overturned the form book — Pavel Krainik came in leading the head-to-head 1–0. Marious Zelba claimed a first win over Pavel Krainik in two meetings, levelling the head-to-head at 1–1.
Zelba M. took it in straight sets.
Marious Zelba beat Pavel Krainik 7-6(1) 7-6(5). Umpiry, "Marious Zelba vs Pavel Krainik — Mexico F5 Round of 32", https://umpiry.com/match/2013-04-22/krainik-vs-zelba-mexico-f5-r32?utm_source=cite (as of 22 April 2013).