Gilles Simon defeated Andreas Seppi 7-6 7-6 in the Valencia quarter-final on hard. The result followed the form book — Gilles Simon came in leading the head-to-head 6–1. Gilles Simon extended the head-to-head to 7–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-09-18 | Metz | R32 | hard | Gilles Simon | 6-3 6-0 |
| 2015-08-10 | Canada Masters | R64 | hard | Gilles Simon | 6-2 6-4 |
| 2013-06-17 | Eastbourne | SF | grass | Gilles Simon | 6-4 6-3 |
| 2008-10-20 | Lyon | R16 | clay | Gilles Simon | 7-6 5-7 6-4 |
| 2006-09-25 | Palermo | R32 | clay | Gilles Simon | 6-0 6-7 6-2 |
| 2005-06-16 | Wimbledon | Q32 | grass | Andreas Seppi | 2-6 5-7 6-2 6-2 7-5 |
| 2005-04-04 | Casablanca | QF | clay | Gilles Simon | 6-1 7-5 |
Averages over each player's completed matches in the selected window (200 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