John Hallquist Lithen defeated Samir Hamza Reguig 6-3 6-2 in the M15 Monastir 36 quarter-final on hard. John Hallquist Lithen extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-09-19 | M15 Monastir 35 | QF | hard | John Hallquist Lithen | 6-1 7-6(3) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.