Wenceslao Albin Martin defeated Santiago Villarruel 6-3 4-6 6-4 in the Argentina F3 qualifying round of 64 on clay. The upset overturned the form book — Santiago Villarruel came in leading the head-to-head 1–0. Wenceslao Albin Martin claimed a first win over Santiago Villarruel in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-05-04 | Argentina F4 | Q16 | clay | Santiago Villarruel | 6-1 3-6 7-6(5) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.