Stefano Ianni defeated Matteo Viola 6-1 6-3 in the Lithuania F1 qualifying round on clay. The upset overturned the form book — Matteo Viola came in leading the head-to-head 2–1. Stefano Ianni narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-05-03 | USA F11 | F | clay | Matteo Viola | 6-2 6-1 |
| 2010-01-25 | USA F3 | R16 | clay | Matteo Viola | 6-3 6-4 |
| 2010-01-18 | USA F2 | QF | clay | Stefano Ianni | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.