Roberta Vinci defeated Flavia Pennetta 6-1 6-2 in the Tokyo round of 64 on hard. The upset overturned the form book — Flavia Pennetta came in leading the head-to-head 6–3, defending last year's round of 16, but Roberta Vinci had been the form player, winning 3 of their last 5 on hard. Roberta Vinci narrowed the head-to-head to 6–4.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-08-31 | US Open | F | hard | Flavia Pennetta | 7-6 6-2 |
| 2013-08-26 | US Open | QF | hard | Flavia Pennetta | 6-4 6-1 |
| 2010-05-24 | Roland Garros | R64 | clay | Flavia Pennetta | 6-1 6-1 |
| 2009-07-13 | Palermo | R16 | clay | Flavia Pennetta | 7-5 6-1 |
| 2009-04-13 | Barcelona | R16 | clay | Roberta Vinci | 6-1 6-2 |
| 2007-02-26 | Acapulco | R16 | hard | Flavia Pennetta | 6-0 6-2 |
| 2007-02-19 | Bogota | SF | clay | Roberta Vinci | 3-6 7-6 6-2 |
| 2005-07-18 | Palermo | QF | clay | Flavia Pennetta | 6-1 4-6 7-6 |
| 2003-01-27 | Ortisei 50K | R32 | carpet | Roberta Vinci | 2-6 7-6(2) 6-3 |
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About