Santiago Villarruel defeated Wenceslao Albin Martin 6-1 3-6 7-6 in the Argentina F4 qualifying round of 16 on clay. The upset overturned the form book — Wenceslao Albin Martin came in leading the head-to-head 1–0. Santiago Villarruel claimed a first win over Wenceslao Albin Martin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-03-23 | Argentina F3 | Q64 | clay | Wenceslao Albin Martin | 6-3 4-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.