Zi Yan defeated Anna Lena Groenefeld 6-3 6-2 in the Vienna qualifying round of 16 on clay.
Yan Z. took it in straight sets.
Yan Z. and Groenefeld A. faced 1 of the same opponent in the last 12 months. Yan Z. went 1–0 (100%) against them, Groenefeld A. 0–1 (0%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.
Zi Yan beat Anna Lena Groenefeld 6-3 6-2. Umpiry, "Zi Yan vs Anna Lena Groenefeld — Vienna Qualifying Round of 16", https://umpiry.com/match/2004-05-17/groenefeld-vs-yan-vienna-q16?utm_source=cite (as of 17 May 2004).