Karl Friberg defeated Marius Ruzgas 6-4 4-6 7-5 in the M15 Kalmar 1 round of 16 on clay. The upset overturned the form book — Marius Ruzgas came in leading the head-to-head 1–0. Karl Friberg claimed a first win over Marius Ruzgas in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-08-08 | M15 Ystad 1 | R16 | clay | Marius Ruzgas | 7-5 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.