Guy Den Heijer defeated Vladimir Ivanov 6-3 7-6 in the M25 Alkmaar 1 q16 on clay. The result followed the form book — Guy Den Heijer came in leading the head-to-head 1–0. Guy Den Heijer extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-08-18 | M15 Oldenzaal 1 | R32 | clay | Guy Den Heijer | 4-6 6-4 6-4 |
Averages over each player's completed matches in the selected window (107 vs 25). 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