Els Callens defeated Bethanie Mattek Sands 6-2 4-6 6-3 in the Tokyo qualifying round on hard. The upset overturned the form book — Bethanie Mattek Sands came in leading the head-to-head 1–0, but Els Callens had been the form player, winning 2 of their last 5 on hard. Els Callens claimed a first win over Bethanie Mattek Sands in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-08-01 | Montreal | Q32 | hard | Bethanie Mattek Sands | 6-3 6-1 |
Averages over each player's completed matches in the selected window (6 vs 200). 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