Stefan Kozlov advanced when Jason Jung retired 6-3 3-6 5-2 in the Indian Wells Masters qualifying round 1. Stefan Kozlov extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-10-04 | Indian Wells Masters | Q1 | hard | Stefan Kozlov | 6-3 3-6 5-2 RET |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (199 vs 158). ATP, WTA & Challenger.