Juan Ignacio Londero defeated Dominik Koepfer 7-6 5-7 6-3 in the Heilbronn CH round of 16 on clay. The upset overturned the form book — Dominik Koepfer came in leading the head-to-head 2–0, defending last year's round of 16. Juan Ignacio Londero claimed a first win over Dominik Koepfer in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-04-12 | Monte Carlo Masters | Q2 | clay | Dominik Koepfer | 6-1 6-3 |
| 2020-08-24 | Cincinnati Masters | Q1 | hard | Dominik Koepfer | 6-4 7-6(0) |
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 (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About