Kacper Zuk defeated Jan Zielinski 6-7 7-6 6-2 in the Szczecin CH qualifying round 1 on clay. The result followed the form book — Kacper Zuk came in leading the head-to-head 3–0. Kacper Zuk extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2020-02-13 | M25 Barnstaple 1 | QF | hard | Kacper Zuk | 3-6 6-0 6-1 |
| 2019-10-30 | M15 Sharm El Sheikh 17 | R32 | hard | Kacper Zuk | 6-3 6-3 |
| 2019-09-27 | M25 Stockholm 1 | QF | hard | Kacper Zuk | 6-3 6-1 |
Averages over each player's completed matches in the selected window (200 vs 43). 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