Swimming World Championships 1973 at Beograd (yug) Women: 400 m Freestyle September 7: Final: 1. Heather Greenwood (usa) 4:20.28 2. Keena Rothhammer (usa) 4:21.50 3. Novella Calligaris (ita) 4:21.79 4. Virginia Rickard (aus) 4:23.48 5. Gudrun Wegner (ege) 4:24.64 6. Elke Sehmisch (ege) 4:30.94 7. Janice Stenhouse (can) 4:31.92 8. Narelle Moras (aus) 4:34.94