Sergio Galdos defeated Gustavo Sterin 6-3 6-2 in the Colombia F1 round of 32 on clay. Sergio Galdos extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-04-25 | Venezuela F1 | R32 | hard | Gustavo Sterin | 6-4 6-4 |
| 2010-09-20 | Bolivia F2 | R16 | clay | Sergio Galdos | 3-6 6-3 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.