Swimming World Championships 1998 at Perth (aus) Women: 50 m Freestyle January 18: Final: 1. Amy van Dyken (usa) 25.15 2. Sandra Völker (ger) 25.32 3. Shan Ying (chn) 25.36 4. Jenny Thompson (usa) 25.59 5. Angela Postma (net) 25.67 6. Therese Alshammar (swe) 25.83 7. Simone Osygus (ger) 25.90 8. Martina Moravcová (svk) 26.04