Karolina Kosinska defeated Joanna Sakowicz Kostecka 6-4 3-6 6-4 in the Torun 25K round of 32 on clay. The upset overturned the form book — Joanna Sakowicz Kostecka came in leading the head-to-head 1–0. Karolina Kosinska claimed a first win over Joanna Sakowicz Kostecka in two meetings, levelling the head-to-head at 1–1.
Kosinska K. came through in three sets.
Karolina Kosinska beat Joanna Sakowicz Kostecka 6-4 3-6 6-4. Umpiry, "Karolina Kosinska vs Joanna Sakowicz Kostecka — Torun 25K Round of 32", https://umpiry.com/match/2004-07-05/kosinska-vs-kostecka-torun-25k-r32?utm_source=cite (as of 5 July 2004).