Jason Jung defeated Donald Young 6-4 6-7 6-1 in the Australian Open q128 on hard. The result followed the form book — Jason Jung came in leading the head-to-head 1–0. Jason Jung extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-08-20 | US Open | Q128 | hard | Jason Jung | 6-3 6-7(4) 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.