Sorana Cirstea advanced when Kurumi Nara retired 3-3 in the Montreal qualifying round of 64.
Cirstea S. advanced when Nara K. retired.
Cirstea S. and Nara K. faced 3 of the same opponents in the last 12 months. Cirstea S. went 1–2 (33%) against them, Nara K. 2–1 (67%). Only 1 of the comparisons are context-comparable — too few for a conclusion.
Only 3 common opponents — small sample, treat as indicative.
Sorana Cirstea beat Kurumi Nara 3-3 after Kurumi Nara retired. Umpiry, "Sorana Cirstea vs Kurumi Nara — Montreal Qualifying Round of 64", https://umpiry.com/match/2010-08-13/cirstea-vs-nara-montreal-q64?utm_source=cite (as of 13 August 2010).