Yong Il Yoon defeated Aisam Ul Haq Qureshi 6-4 6-4 in the Japan F4 qualifying round on carpet. The upset overturned the form book — Aisam Ul Haq Qureshi came in leading the head-to-head 1–0. Yong Il Yoon claimed a first win over Aisam Ul Haq Qureshi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-01-14 | Australian Open | Q128 | hard | Aisam Ul Haq Qureshi | 6-0 6-1 |
Averages over each player's completed matches in the selected window (8 vs 25). 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