Heather Watson defeated Tsvetana Pironkova 1-6 6-4 6-2 in the GBR vs BUL round robin on hard. The upset overturned the form book — Tsvetana Pironkova came in leading the head-to-head 3–1. Heather Watson narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-01-19 | Australian Open | R128 | hard | Tsvetana Pironkova | 6-4 6-0 |
| 2014-06-16 | Eastbourne | R32 | grass | Heather Watson | 3-6 7-5 6-2 |
| 2012-01-09 | Hobart | R32 | hard | Tsvetana Pironkova | 7-6 3-6 7-6 |
| 2010-03-22 | Miami | R128 | hard | Tsvetana Pironkova | 6-4 6-2 |
Averages over each player's completed matches in the selected window (199 vs 199). 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