Frederic Niemeyer defeated Helge Koll 6-4 4-6 6-4 in the USA F8 round of 32 on hard.
Niemeyer F. came through in three sets.
Frederic Niemeyer beat Helge Koll 6-4 4-6 6-4. Umpiry, "Frederic Niemeyer vs Helge Koll — USA F8 Round of 32", https://umpiry.com/match/2000-04-03/koll-vs-niemeyer-usa-f8-r32?utm_source=cite (as of 3 April 2000).