Ivan Zaytsev defeated Kirill Kolganov 6-2 6-2 in the M25 Nur-Sultan 1 q16 on hard. The upset overturned the form book — Kirill Kolganov came in leading the head-to-head 1–0, but Ivan Zaytsev had been the form player, winning 5 of their last 9 on hard. Ivan Zaytsev claimed a first win over Kirill Kolganov in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-03-04 | M15 Aktobe 1 | Q32 | hard | Kirill Kolganov | 7-6(2) 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.