Sebastien Boltz defeated Gleb Sakharov 7-6 6-3 in the Belgium F4 round of 32 on hard. The upset overturned the form book — Gleb Sakharov came in leading the head-to-head 1–0. Sebastien Boltz claimed a first win over Gleb Sakharov in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-01-16 | France F2 | R32 | hard | Gleb Sakharov | 7-5 6-4 |
Averages over each player's completed matches in the selected window (69 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