Mashona Washington defeated Karolina Sprem 2-6 7-6 6-1 in the San Diego round of 64 on hard. The upset overturned the form book — Karolina Sprem came in leading the head-to-head 2–0, defending last year's round of 32. Mashona Washington claimed a first win over Karolina Sprem in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-22 | Istanbul | R16 | clay | Karolina Sprem | 6-4 6-1 |
| 2006-04-03 | Amelia Island | R64 | clay | Karolina Sprem | 6-3 4-6 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 (21 vs 73). ATP, WTA & Challenger.