Swimming World Championships 1994 at Roma (ita) Women: 400 m Medley September 5: Final: 1. Dai Guohong (chn) 4:39.14 2. Allison Wagner (usa) 4:39.98 3. Kristine Quance (usa) 4:42.21 4. Joanne Malar (can) 4:44.79 5. Hayley Lewis (aus) 4:45.08 6. Hana Cerna (cze) 4:45.48 7. Nancy Sweetnam (can) 4:48.83 -. Hideko Hiranaka (jpn) disqualified