Juan Carlos Sierra defeated Felipe Santamaria 7-6 6-3 in the Colombia F4 q32 on hard. The upset overturned the form book — Felipe Santamaria came in leading the head-to-head 1–0. Juan Carlos Sierra claimed a first win over Felipe Santamaria in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-10-26 | Colombia F8 | Q32 | clay | Felipe Santamaria | 6-3 7-6(6) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.