Alexander Donski defeated David Pichler 6-3 6-7 6-4 in the M15 Johannesburg 1 semi-final on hard. The upset overturned the form book — David Pichler came in leading the head-to-head 1–0, but Alexander Donski had been the form player, winning 6 of their last 8 on hard. Alexander Donski claimed a first win over David Pichler in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-12-05 | M15 Heraklion 9 | R16 | hard | David Pichler | 6-4 0-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.