2018 IAAF World Indoor Championships – Women's 400 metres
The women's 400 metres at the 2018 IAAF World Indoor Championships took place on 2 and 3 March 2018.
Summary
The two Americans with the fastest times in the semi-final round, Shakima Wimbley and Courtney Okolo were given the outer two lanes in the final, 5 and 6 respectively. Wimbley started quickly, making up a little ground on Okolo's stagger, while Okolo took a more measured approach to her speed, putting on a burst just before the cones, then taking the tangent to lane 1 to take the lead unobstructed. Wimbley closed in much sooner, forcing Eilidh Doyle to squeeze inside to take second position with a lap to go. Okolo just continued to extend her lead, seven metres by the finish for a clear win. Wimbley ran on Doyle's outside through most of the last lap, finally conceding to run the last part of the last turn behind Doyle. On the final straightaway, Wimbley took one more run at Doyle, passing her for the silver. Justyna Święty-Ersetic also closed quickly but could not catch Doyle for bronze.Results
Heats
The heats were started on 2 March at 12:10.| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 1 | 5 | Courtney Okolo | 51.54 | Q | |
| 2 | 5 | 4 | Stephenie Ann McPherson | 52.18 | Q, SB | |
| 3 | 1 | 6 | Maria Belibasaki | 52.27 | Q, PB | |
| 4 | 5 | 5 | Eilidh Doyle | 52.31 | Q | |
| 5 | 4 | 5 | Shakima Wimbley | 52.43 | Q | |
| 6 | 2 | 6 | Léa Sprunger | 52.46 | Q | |
| 7 | 2 | 5 | Madiea Ghafoor | 52.54 | Q | |
| 8 | 3 | 6 | Zoey Clark | 52.75 | Q | |
| 9 | 5 | 6 | Phil Healy | 52.75 | q | |
| 10 | 2 | 3 | Nadine Gonska | 52.77 | q, PB | |
| 11 | 5 | 3 | Alexandra Bezeková | 52.78 | q | |
| 12 | 4 | 3 | Agnė Šerkšnienė | 52.81 | Q, NR | |
| 13 | 1 | 2 | Anna Yaroshchuk-Ryzhykova | 52.96 | q, PB | |
| 14 | 4 | 2 | Raphaela Boaheng Lukudo | 52.98 | q, PB | |
| 15 | 3 | 5 | Justyna Święty-Ersetic | 53.05 | Q | |
| 16 | 1 | 4 | Lada Vondrová | 53.05 | q | |
| 17 | 4 | 4 | Patrycja Wyciszkiewicz | 53.22 | ||
| 18 | 3 | 1 | Ayomide Folorunso | 53.24 | ||
| 19 | 3 | 3 | Kelsey Balkwill | 53.29 | ||
| 20 | 2 | 4 | Travia Jones | 53.31 | ||
| 21 | 6 | 5 | Tovea Jenkins | 53.39 | Q | |
| 22 | 3 | 4 | Svetlana Golendova | 53.44 | ||
| 23 | 4 | 6 | Anita Horvat | 53.52 | ||
| 24 | 5 | 2 | Tamara Salaški | 53.61 | ||
| 25 | 2 | 1 | Laura Bueno | 53.66 | ||
| 26 | 1 | 3 | Elina Mikhina | 53.90 | ||
| 27 | 5 | 1 | Grace Claxton | 53.92 | ||
| 28 | 6 | 4 | Iveta Putalová | 53.97 | Q | |
| 29 | 6 | 1 | Cátia Azevedo | 54.17 | ||
| 30 | 3 | 2 | Kineke Alexander | 55.46 | ||
| 31 | 6 | 2 | Djénébou Danté | 57.85 | SB | |
| 6 | 3 | Maja Ćirić | 163.3 | |||
| 2 | 2 | Miriama Senokonoko | 163.3 | |||
| 6 | 6 | Patience Okon George |
Semifinal
The semifinals were started on 2 March at 20:32.| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 1 | 5 | Shakima Wimbley | 51.34 | Q | |
| 2 | 3 | 5 | Courtney Okolo | 51.79 | Q | |
| 3 | 1 | 4 | Eilidh Doyle | 52.15 | Q | |
| 4 | 3 | 6 | Tovea Jenkins | 52.42 | Q | |
| 5 | 1 | 3 | Agnė Šerkšnienė | 52.62 | NR | |
| 6 | 2 | 3 | Justyna Święty-Ersetic | 52.63 | Q | |
| 7 | 2 | 6 | Zoey Clark | 52.63 | Q | |
| 8 | 1 | 2 | Anna Yaroshchuk-Ryzhykova | 52.74 | PB | |
| 9 | 1 | 1 | Alexandra Bezeková | 53.05 | ||
| 10 | 2 | 4 | Madiea Ghafoor | 53.14 | ||
| 11 | 2 | 2 | Raphaela Boaheng Lukudo | 53.18 | ||
| 12 | 3 | 1 | Phil Healy | 53.26 | ||
| 13 | 3 | 2 | Lada Vondrová | 53.32 | ||
| 14 | 2 | 1 | Nadine Gonska | 53.45 | ||
| 15 | 3 | 3 | Iveta Putalová | 53.46 | ||
| 1 | 6 | Léa Sprunger | 163.3 | |||
| 3 | 4 | Maria Belibasaki | 163.3 | |||
| 2 | 5 | Stephenie Ann McPherson | 163.3 |
Final
The final was started on 3 March at 20:05.| Rank | Lane | Name | Nationality | Time | Notes |
| 6 | Courtney Okolo | 50.55 | PB | ||
| 5 | Shakima Wimbley | 51.47 | |||
| 4 | Eilidh Doyle | 51.60 | SB | ||
| 4 | 3 | Justyna Święty-Ersetic | 51.85 | ||
| 5 | 1 | Tovea Jenkins | 52.12 | PB | |
| 6 | 2 | Zoey Clark | 52.16 |