Peter Wessels defeated Jan Michael Gambill 6-4 6-7 6-3 in the Delray Beach round of 16 on hard. The upset overturned the form book — Jan Michael Gambill came in defending last year's round of 32. Peter Wessels extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-10-03 | Tokyo | R64 | hard | Jan Michael Gambill | 6-2 5-7 6-3 |
| 1998-06-15 | s Hertogenbosch | R32 | grass | Peter Wessels | 6-4 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (28 vs 18). ATP, WTA & Challenger.