Erika Sema defeated Ling Zhang 6-2 5-7 6-3 in the Hamilton 10K qualifying round on hard. The upset overturned the form book — Ling Zhang came in leading the head-to-head 1–0. Erika Sema claimed a first win over Ling Zhang in two meetings, levelling the head-to-head at 1–1.
Sema E. came through in three sets.
Erika Sema beat Ling Zhang 6-2 5-7 6-3. Umpiry, "Erika Sema vs Ling Zhang — Hamilton 10K Qualifying Round", https://umpiry.com/match/2007-03-05/sema-vs-zhang-hamilton-10k-qf?utm_source=cite (as of 5 March 2007).