Konstantin Don Gruber defeated Alan Mackin 7-5 6-3 in the Greece Masters 3 qualifying round on hard.
Don Gruber K. took it in straight sets.
Konstantin Don Gruber beat Alan Mackin 7-5 6-3. Umpiry, "Konstantin Don Gruber vs Alan Mackin — Greece Masters 3 Qualifying Round", https://umpiry.com/match/2000-02-28/gruber-vs-mackin-greece-masters-3-qf?utm_source=cite (as of 28 February 2000).