Boy Westerhof defeated Valentin Sanon 6-7 7-5 7-6 in the Nigeria F4 qualifying round on hard. The result followed the form book — Boy Westerhof came in leading the head-to-head 1–0. Boy Westerhof extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-10-12 | Nigeria F1 | SF | hard | Boy Westerhof | 6-1 3-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.