Martina Hingis defeated Sania Mirza 6-1 6-0 in the Kolkata semi-final on hard. The upset overturned the form book — Sania Mirza came in leading the head-to-head 2–1, defending last year's round of 16. Martina Hingis narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-08-06 | Los Angeles | R32 | hard | Sania Mirza | 6-2 2-6 6-4 |
| 2006-09-25 | Seoul | R16 | hard | Sania Mirza | 4-6 6-0 6-4 |
| 2006-02-20 | Dubai | R32 | hard | Martina Hingis | 6-3 7-5 |
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 (84 vs 153). ATP, WTA & Challenger.