Isabell Quast defeated Heike Thoms 6-4 7-6 in the Horb 10K round of 32 on clay.
Quast I. took it in straight sets.
Isabell Quast beat Heike Thoms 6-4 7-6. Umpiry, "Isabell Quast vs Heike Thoms — Horb 10K Round of 32", https://umpiry.com/match/1998-07-29/quast-vs-thoms-horb-10k-r32?utm_source=cite (as of 29 July 1998).