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 2–0. Heather Watson claimed a first win over Tsvetana Pironkova in three meetings, narrowing the head-to-head to 2–1.
Watson H. came through in three sets.
Watson H. and Pironkova T. faced 10 of the same opponents in the last 12 months. Watson H. went 4–8 (33%) against them, Pironkova T. 4–6 (40%). Results against comparable opponents are close (3 : 3 better-results split).
Heather Watson beat Tsvetana Pironkova 1-6 6-4 6-2. Umpiry, "Heather Watson vs Tsvetana Pironkova — GBR vs BUL Round Robin", https://umpiry.com/match/2013-02-10/pironkova-vs-watson-gbr-vs-bul-rr?utm_source=cite (as of 10 February 2013).