Roman Borvanov defeated Ti Chen 6-2 6-3 in the San Jose qualifying round on hard. The upset overturned the form book — Ti Chen came in leading the head-to-head 1–0. Roman Borvanov claimed a first win over Ti Chen in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-06-19 | USA F13 | R32 | hard | Ti Chen | 7-5 6-3 |
Averages over each player's completed matches in the selected window (1 vs 139). 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