Doug Root advanced past Frederic Niemeyer via walkover in the Mexico F5 qualifying round.
Root D. advanced on a walkover.
Doug Root advanced when Frederic Niemeyer withdrew. Umpiry, "Doug Root vs Frederic Niemeyer — Mexico F5 Qualifying Round", https://umpiry.com/match/2001-05-14/niemeyer-vs-root-mexico-f5-qf?utm_source=cite (as of 14 May 2001).