Michael Lammer defeated Matteo Viola 1-6 6-2 6-4 in the Prague CH round of 16 on clay. The upset overturned the form book — Matteo Viola came in leading the head-to-head 1–0. Michael Lammer claimed a first win over Matteo Viola in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-07-21 | Gstaad | Q2 | clay | Matteo Viola | 6-1 6-3 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (13 vs 200). ATP, WTA & Challenger.