Michel Koning defeated Joseph Sirianni 4-6 7-5 7-6 in the Netherlands F4 round of 32 on clay. The upset overturned the form book — Joseph Sirianni came in leading the head-to-head 1–0. Michel Koning claimed a first win over Joseph Sirianni in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-08-21 | Netherlands F4 | R32 | clay | Joseph Sirianni | 7-6(1) 6-1 |
Averages over each player's completed matches in the selected window (1 vs 17). 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