Igor Kunitsyn defeated Ivo Heuberger 7-5 6-4 in the Houston qualifying round on clay. Igor Kunitsyn moved ahead in the head-to-head, 2–1.
Kunitsyn I. took it in straight sets.
Clay: Kunitsyn I. leads 1–0 · Hard: level 1–1
Igor Kunitsyn beat Ivo Heuberger 7-5 6-4. Umpiry, "Igor Kunitsyn vs Ivo Heuberger — Houston Qualifying Round", https://umpiry.com/match/2006-04-10/heuberger-vs-kunitsyn-houston-qf?utm_source=cite (as of 10 April 2006).