Attila Balazs defeated Matteo Viola 6-3 6-3 in the Poprad Tatry CH round of 32 on clay. The upset overturned the form book — Matteo Viola came in leading the head-to-head 4–1. Attila Balazs narrowed the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-11-07 | Italy F37 | F | clay | Matteo Viola | 0-6 7-5 6-2 |
| 2012-01-28 | Zagreb | Q32 | hard | Matteo Viola | 1-6 7-5 6-2 |
| 2010-08-25 | US Open | Q128 | hard | Matteo Viola | 6-3 6-1 |
| 2010-03-22 | Croatia F2 | F | clay | Attila Balazs | 6-4 6-4 |
| 2008-05-19 | Hungary F3 | F | clay | Matteo Viola | 7-6(5) 6-3 |
Averages over each player's completed matches in the selected window (117 vs 184). 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