Denis Zivkovic defeated Manuel Sanchez 6-3 6-3 in the Colombia F2 round of 16 on clay. The upset overturned the form book — Manuel Sanchez came in leading the head-to-head 1–0, but Denis Zivkovic had been the form player, winning 2 of their last 5 on clay. Denis Zivkovic claimed a first win over Manuel Sanchez in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-01-17 | Mexico F1 | R16 | hard | Manuel Sanchez | 7-5 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.