Rabie Chaki defeated Guillaume Couillard 4-6 6-4 6-2 in the Algeria F2 round of 32 on clay. The upset overturned the form book — Guillaume Couillard came in leading the head-to-head 1–0. Rabie Chaki claimed a first win over Guillaume Couillard in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-02-01 | France F2 | R32 | hard | Guillaume Couillard | 4-6 7-6(5) 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.