Cecil Mamiit defeated Helge Koll 6-4 6-1 in the USA 6 Masters 4 round of 16 on hard.
Mamiit C. took it in straight sets.
Cecil Mamiit beat Helge Koll 6-4 6-1. Umpiry, "Cecil Mamiit vs Helge Koll — USA 6 Masters 4 Round of 16", https://umpiry.com/match/1996-10-11/koll-vs-mamiit-usa-6-masters-4-r16?utm_source=cite (as of 11 October 1996).