Tristan Lamasine defeated David Guez 6-4 3-6 6-2 in the France F18 semi-final on hard. The upset overturned the form book — David Guez came in leading the head-to-head 2–1. Tristan Lamasine narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-03-10 | France F6 | R32 | hard | David Guez | 6-1 5-7 6-2 |
| 2012-07-09 | France F13 | R32 | clay | David Guez | 7-6(4) |
| 2011-10-24 | France F20 | R16 | hard | Tristan Lamasine | 6-3 6-1 |
Averages over each player's completed matches in the selected window (200 vs 142). 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