Stephanie Dubois defeated Ai Sugiyama 6-7 6-4 7-5 in the Toronto round of 64 on hard. The upset overturned the form book — Ai Sugiyama came in leading the head-to-head 1–0. Stephanie Dubois claimed a first win over Ai Sugiyama in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-01-19 | Australian Open | R128 | hard | Ai Sugiyama | 6-0 7-6(5) |
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 (66 vs 104). ATP, WTA & Challenger.