Roberto Marcora defeated Claudio Grassi 6-7 7-5 6-3 in the Switzerland F5 semi-final on clay. The upset overturned the form book — Claudio Grassi came in leading the head-to-head 3–1. Roberto Marcora narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-03-12 | Switzerland F1 | QF | carpet | Claudio Grassi | 6-3 6-3 |
| 2011-08-08 | Latvia F1 | QF | clay | Claudio Grassi | 7-6(3) 6-4 |
| 2010-08-02 | Italy F20 | R32 | clay | Claudio Grassi | 6-2 6-4 |
| 2009-08-24 | Italy F25 | R32 | hard | Roberto Marcora | 7-6(1) 6-3 |
Averages over each player's completed matches in the selected window (200 vs 7). 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