Peter Clarke defeated Thiemo Maier 7-6 6-3 in the Egypt F3 Cairo round of 16 on clay. The upset overturned the form book — Thiemo Maier came in leading the head-to-head 1–0. Peter Clarke claimed a first win over Thiemo Maier in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-11-22 | Australia F4 | R32 | grass | Thiemo Maier | 4-6 7-6 6-2 |