Dostanbek Tashbulatov defeated Markos Kalovelonis 3-6 6-3 6-4 in the M25 Nur-Sultan 2 round of 32 on hard. The upset overturned the form book — Markos Kalovelonis came in leading the head-to-head 1–0. Dostanbek Tashbulatov claimed a first win over Markos Kalovelonis in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-10-12 | Kazakhstan F6 | R16 | clay | Markos Kalovelonis | 6-0 6-1 |
Averages over each player's completed matches in the selected window (9 vs 18). 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