Lionel Noviski defeated Facundo Arguello 6-3 7-5 in the Argentina F7 round of 16 on clay. The upset overturned the form book — Facundo Arguello came in leading the head-to-head 1–0, but Lionel Noviski had been the form player, winning 5 of their last 8 on clay. Lionel Noviski claimed a first win over Facundo Arguello in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-09-21 | Argentina F16 | R32 | clay | Facundo Arguello | 5-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.