Nickisha Pryce Best Time: 49.58 sec (2023) Jamaican sprinter Nickisha Pryce has emerged as a rising star in the 400m with a personal best of 49.58.
Sydney McLaughlin-Levrone Best Time: 48.74 sec (2023) Sydney McLaughlin-Levrone, an American sprinter, holds a top 400m time and dominates in the 400m hurdles.
Natalia Kaczmarek Best Time: 49.25 sec (2022) Polish sprinter Natalia Kaczmarek has made her mark with a personal best of 49.25 in the 400m.
Shaunae Miller-Uibo Best Time: 48.36 sec (2021) Bahamas’ Shaunae Miller-Uibo, known for her powerful finish, is a two-time Olympic champion.
Salwa Eid Naser Best Time: 48.14 sec (2019) Bahrain's Salwa Eid Naser shocked the world with a blistering 48.14 at the World Championships.
Sanya Richards-Ro Best Time: 48.70 sec (2006) The American sprinter dominated the event in the mid-2000s with her personal best of 48.70.
Ana Gabriela Guevara Best Time: 48.89 sec (2003) Mexican sprinter Ana Guevara is known for her speed and won the 400m World Championship in 2003.
Marie-José Pérec Best Time: 48.25 sec (1996) The Frenchwoman dominated the 400m during the 1990s, winning Olympic gold twice.
Cathy Freeman Best Time: 48.63 sec (1996) Freeman, Australia’s Olympic hero, won gold in 2000 and is a national icon.
Irina Privalova Best Time: 48.27 sec (1993) Russian sprinter Irina Privalova’s incredible time makes her one of the fastest of all time.
Olga Bryzgina Best Time: 48.27 sec (1985) The Soviet star tied with Privalova for one of the fastest times ever at 48.27.
Marita Koch World Record: 47.60 sec (1985) Marita Koch from East Germany holds the unbeatable world record in the women's 400m.
Valerie Brisco-Hooks Best Time: 48.83 sec (1984) Brisco-Hooks became the first woman to win Olympic gold in both the 200m and 400m.
Tatiana Kocembova Best Time: 48.59 sec (1983) The Czech runner set her lifetime best in the same era as Kratochvílová.
Jarmila Kratochvílová Best Time: 47.99 sec (1983) Czechoslovakia's Jarmila Kratochvílová remains the second-fastest in history, running under 48 seconds.