Isaac Frost defeated Thomas Kostro 7-5 6-3 in the Poland F6 round of 32 on clay.
Frost I. took it in straight sets.
Isaac Frost beat Thomas Kostro 7-5 6-3. Umpiry, "Isaac Frost vs Thomas Kostro — Poland F6 Round of 32", https://umpiry.com/match/2007-08-13/frost-vs-kostro-poland-f6-r32?utm_source=cite (as of 13 August 2007).