Vesna Dolonc defeated Vania King 6-2 6-1 in the Miami qualifying round of 64 on hard. The upset overturned the form book — Vania King came in defending last year's round of 128, but Vesna Dolonc had been the form player, winning 3 of their last 5 on hard.
Dolonc V. took it in straight sets.
Dolonc V. and King V. faced 3 of the same opponents in the last 12 months. Dolonc V. went 1–2 (33%) against them, King V. 1–2 (33%). Only 2 of the comparisons are context-comparable — too few for a conclusion.
Only 3 common opponents — small sample, treat as indicative.
Vesna Dolonc beat Vania King 6-2 6-1. Umpiry, "Vesna Dolonc vs Vania King — Miami Qualifying Round of 64", https://umpiry.com/match/2011-03-21/dolonc-vs-king-miami-q64?utm_source=cite (as of 21 March 2011).