> Chad - 400 metres - women - national record progression

50.38 - 2. Kaltouma Nadjina - 06/08/2001 - Edmonton/CAN - 08.WC/sf2
50.59 - 3. Kaltouma Nadjina - 11/06/2001 - Athens/GRE
50.75 - 1. Kaltouma Nadjina - 03/06/2001 - Portland/OR-USA
51.73 - 1. Kaltouma Nadjina - 22/04/2001 - Walnut/CA-USA
51.90 - 3. Kaltouma Nadjina - 22/08/1999 - Sevilla/ESP - 07.WC/h5