Olga Puchkova defeated Julia Vakulenko 1-6 6-3 6-4 in the Zurich qualifying round of 16 on hard.
Puchkova O. came through in three sets.
Puchkova O. and Vakulenko J. faced 6 of the same opponents in the last 12 months. Puchkova O. went 1–5 (17%) against them, Vakulenko J. 6–1 (86%). Vakulenko J. came out clearly better against 4 of 6 comparable opponents, Puchkova O. against 0 — though 1 of those edges carries caveats (lower-tier event).
Olga Puchkova beat Julia Vakulenko 1-6 6-3 6-4. Umpiry, "Olga Puchkova vs Julia Vakulenko — Zurich Qualifying Round of 16", https://umpiry.com/match/2007-10-14/puchkova-vs-vakulenko-zurich-q16?utm_source=cite (as of 14 October 2007).