Andy Fahlke defeated Mark Nielsen 4-6 6-4 6-4 in the Australia 1 Masters 1 round of 32 on clay. The upset overturned the form book — Mark Nielsen came in leading the head-to-head 1–0. Andy Fahlke claimed a first win over Mark Nielsen in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-10-25 | Japan F6 | SF | carpet | Mark Nielsen | 6-2 5-7 7-6 |
Averages over each player's completed matches in the selected window (1 vs 8). 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. Small sample — read as indicative. About