Igor Kunitsyn defeated Ivo Heuberger 7-5 6-4 in the Houston qualifying round on clay. Igor Kunitsyn extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-10-10 | Moscow | QF | hard | Igor Kunitsyn | 7-6(6) 6-2 |
| 2004-02-16 | Rotterdam | QF | hard | Ivo Heuberger | 7-6(5) 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.