Sydney McLaughlin, Women's Olympics Track and Field 400m Hurdles Qualifying Results

Sydney McLaughlin-Levrone's Olympic title defense is on.

The fastest woman to ever run the 400 meter hurdles dominated her qualifying heat Sunday to clinch a spot in the semifinals at the 2024 Paris Games.

McLaughlin-Levrone marked a time of 53.60 to win by more than a full second over the next closest competitor, Morocco's Noura Ennadi.

The full list of qualifiers who will be joining McLaughlin-Levrone in the semifinal is below.

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400m women's hurdles semifinal qualifiers

1. Femke Bol, Netherlands: 53.38
2. Jasmine Jones, USA: 53.60
3. Sydney McLaughlin-Levrone, USA: 53.60
4. Anna Cockrell, USA: 53.91
5. Shiann Salmon, Jamaica: 53.95
6. Rushell Clayton, Jamaica: 54.32
7. Rogail Joseph, South Africa: 54.56
8. Lina Nielsen, Great Britain: 54.65
9. Janieve Russell, Jamaica: 54.67
10. Zeney Geldenhuys, South Africa: 54.73
11. Fatoumata Binta Diallo, Portugal: 54.75
12. Savannah Sutherland, Canada: 54.80
13. Hanne Claes, Belgium: 54.80
14. Amalie Iuel, Noway: 54.82
15. Cathelijn Peeters, Netherlands: 54.84
16. Paulien Couckuyt, Belgium: 54.90
17. Noura Ennadi, Morocco: 55.26
    
18. Louise Maraval, France: 55.32

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McLaughlin-Levrone's heat win may have appeared effortless, but the 2020 Tokyo gold medalist and Olympics world record holder will have steep competition going forward.

Dutch sprinter Femke Bol, who on Saturday put up a gold medal-worthy anchor run in the 4x400m mixed relay, led the qualifying field with a time of 53.38.

Bol finished a full second behind McLaughlin-Levrone back in 2022 when she became the first woman in the world to run the 400m hurdles in fewer than 51 seconds with a time of 50.68.

McLaughlin-Levrone then went on to break her own record with a 50.65-second run at Olympic trials.

Meanwhile Bol, who holds the 400m world indoor record, has since cut down her best time on the hurdles to join McLaughlin-Levrone in the sub-51 second club at 50.95 seconds.

McLaughlin-Levrone may have to challenge her own record once again in order to keep Bol at bay in the final.

Athletes who fell short of qualifying will get another chance 400m hurdles repechage round Monday at 4:50pm ET.

McLaughlin-Levrone will race again in the semifinals Tuesday at 2:07pm ET with hopes of qualifying for the finals Thursday at 3:25pm ET. All races can be watched on NBC/Peacock.