> Guyana - 400 metres - national records - women

50.20 - 1. Aliyah Abrams - 13/05/2023 - Freeport/BAH
50.71 - 3. Aliann Pompey - 16/08/2009 - Berlin/GER - 12.WC/sf1
50.90 - 4. Aliann Pompey - 13/07/2009 - Athens/GRE
50.93 - 3. Aliann Pompey - 17/08/2008 - Beijing/CHN - 29.OG/sf1
50.93 - 2. Aliann Pompey - 17/07/2004 - Madrid/ESP
51.09 - 4. Aliann Pompey - 11/06/2004 - Bergen/NOR
51.11 - 2. Aliann Pompey - 23/05/2004 - Belém/BRA
51.34 - 2. Aliann Pompey - 27/07/2002 - Manchester/GBR - 17.CG/sf2
51.37 - 1. June Griffith - 19/05/1979 - Durham/NC-USA
51.50 - 4. June Griffith - 10/06/1978 - Westwood/CA-USA