Analysis of information sources in references of the Wikipedia article "2003 Swisscom Challenge – Doubles" in English language version.
Kim Cijsters happens to be # 2 at doubles also at this time; the player stopping her from being # 1 at doubles is her partner, Ai Sugiyama, so that is unlikely to change. Kim and Ai won the Zurich doubles title by defeating the other current great team, Virgina Ruano Pascual & Paola Suarez, 7-6(3), 6-2