Karim Maamoun defeated Thiemo Maier 6-4 6-2 in the Egypt F2 qualifying round on clay. The upset overturned the form book — Thiemo Maier came in leading the head-to-head 1–0, but Karim Maamoun had been the form player, winning 6 of their last 10 on clay. Karim Maamoun claimed a first win over Thiemo Maier in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-08-03 | Egypt F2 | R32 | clay | Thiemo Maier | 6-7 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.