Duilio Vallebuona defeated Federico Zeballos 4-6 7-6 7-5 in the Bolivia F3 round of 32 on clay. The upset overturned the form book — Federico Zeballos came in leading the head-to-head 1–0, but Duilio Vallebuona had been the form player, winning 6 of their last 9 on clay. Duilio Vallebuona claimed a first win over Federico Zeballos in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-02-16 | El Salvador F1 | R16 | clay | Federico Zeballos | 6-2 6-1 |
Averages over each player's completed matches in the selected window (9 vs 200). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About