# Athletics at the 2018 Summer Youth Olympics – Girls' 400 metres

The girls' 400 metres competition at the 2018 Summer Youth Olympics was held on 11 and 14 October, at the Parque Polideportivo Roca.

## Schedule

All times are in local time (UTC-3).
| Date | Time | Round |
| Thursday, 11 October 2018 | 16:50 | Stage 1 |
| Sunday, 14 October 2018 | 17:05 | Stage 2 |

## Results
### Stage 1

| Rank | Heat | Lane | Athlete | Nation | Result | Notes |
| 1 | 1 | 5 | Barbora Malíková | Czech Republic | 54.18 | QH4 |
| 2 | 2 | 4 | Marie Scheppan | Germany | 54.91 | QH4 |
| 3 | 1 | 4 | Niddy Mingilishi | Zambia | 55.16 | QH4, SB |
| 4 | 2 | 6 | Erica Geni Barbosa Cavalheiro | Brazil | 55.60 | QH4 |
| 5 | 2 | 3 | Alina Luchsheva | Belarus | 55.93 | QH4 |
| 6 | 4 | 2 | Janka Molnar | Hungary | 56.00 | QH4 |
| 7 | 3 | 4 | Liefde Schoemaker | Belgium | 56.14 | QH4 |
| 8 | 1 | 2 | Andrea Jiménez | Spain | 56.38 | QH4 |
| 9 | 4 | 3 | Meghan Hunter | United States | 56.83 | QH3 |
| 10 | 1 | 7 | Deshana Skeet | Guyana | 56.85 | QH3 |
| 11 | 4 | 5 | Lorena Itzel Rangel Batres | Mexico | 57.08 | QH3 |
| 12 | 3 | 7 | Alexandra Zalyubovskaya | Kazakhstan | 57.21 | QH3 |
| 13 | 4 | 4 | Favour Ofili | Nigeria | 57.51 | QH3 |
| 14 | 4 | 7 | Ana Costa | Portugal | 57.58 | QH3 |
| 15 | 2 | 7 | Nataliia Dyshliuk | Ukraine | 57.67 | QH2 |
| 16 | 2 | 2 | Adina Cîrciogel | Romania | 57.76 | QH2 |
| 17 | 1 | 3 | Jasneet Nijjar | Canada | 57.97 | QH2 |
| 18 | 3 | 6 | Kinga Gacka | Poland | 58.30 | QH2 |
| 19 | 3 | 2 | Ola Buwaro | The Gambia | 58.37 | QH2 |
| 20 | 2 | 5 | Wang You-hsuan | Chinese Taipei | 58.45 | QH2 |
| 21 | 3 | 5 | Daniella Deer | Jamaica | 1:00.12 | QH1 |
| 22 | 1 | 6 | Serenia Ragatu | Fiji | 1:00.95 | QH2 |
| 23 | 3 | 3 | Megan Moss | Bahamas | 1:02.25 | QH1 |
| 24 | 4 | 8 | Jiijo Hassan Mohamed | Somalia | 1:20.76 | QH1, PB |
| | 4 | 6 | Aissata Denn Conte | Guinea | DQ | R 163.3a QH1 |

### Stage 2

| Rank | Heat | Lane | Athlete | Nation | Result |
| 1 | 4 | 4 | Barbora Malíková | Czech Republic | 54.68 |
| 2 | 4 | 5 | Marie Scheppan | Germany | 55.15 |
| 3 | 4 | 3 | Niddy Mingilishi | Zambia | 55.32 |
| 4 | 4 | 6 | Erica Geni Barbosa Cavalheiro | Brazil | 55.43 |
| 5 | 3 | 7 | Favour Ofili | Nigeria | 55.51 |
| 6 | 4 | 1 | Liefde Schoemaker | Belgium | 55.75 |
| 7 | 4 | 2 | Andrea Jiménez | Spain | 55.76 |
| 8 | 4 | 8 | Janka Molnar | Hungary | 55.93 |
| 9 | 4 | 7 | Alina Luchsheva | Belarus | 55.97 |
| 10 | 3 | 6 | Meghan Hunter | United States | 56.08 |
| 11 | 2 | 8 | Ola Buwaro | The Gambia | 56.63 |
| 12 | 3 | 4 | Deshana Skeet | Guyana | 56.72 |
| 13 | 3 | 3 | Lorena Itzel Rangel Batres | Mexico | 56.86 |
| 14 | 2 | 3 | Jasneet Nijjar | Canada | 57.75 |
| 15 | 2 | 4 | Nataliia Dyshliuk | Ukraine | 58.06 |
| 16 | 2 | 5 | Kinga Gacka | Poland | 58.27 |
| 17 | 3 | 5 | Alexandra Zalyubovskaya | Kazakhstan | 58.55 |
| 18 | 3 | 8 | Ana Costa | Portugal | 58.72 |
| 19 | 2 | 7 | Wang You-hsuan | Chinese Taipei | 59.21 |
| 20 | 2 | 6 | Adina Cîrciogel | Romania | 1:00.06 |
| 21 | 2 | 7 | Serenia Ragatu | Fiji | 1:01.97 |
| | 1 | 4 | Daniella Deer | Jamaica | DNS |
| | 1 | 3 | Megan Moss | Bahamas | DNS |
| | 1 | 5 | Jiijo Hassan Mohamed | Somalia | DNS |
| | 1 | 7 | Aissata Denn Conte | Guinea | DNS |

### Final placing

| Rank | Athlete | Nation | Stage 1 | Stage 2 | Total |
| | Barbora Malíková | Czech Republic | 54.18 | 54.68 | 1:48.86 |
| | Marie Scheppan | Germany | 54.91 | 55.15 | 1:50.06 |
| | Niddy Mingilishi | Zambia | 55.16 | 55.32 | 1:50.48 |
| 4 | Erica Geni Barbosa Cavalheiro | Brazil | 55.60 | 55.43 | 1:51.03 |
| 5 | Liefde Schoemaker | Belgium | 56.14 | 55.75 | 1:51.89 |
| 6 | Alina Luchsheva | Belarus | 55.93 | 55.97 | 1:51.90 |
| 7 | Janka Molnar | Hungary | 56.00 | 55.93 | 1:51.93 |
| 8 | Andrea Jiménez | Spain | 56.38 | 55.76 | 1:52.14 |
| 9 | Meghan Hunter | United States | 56.83 | 56.08 | 1:52.91 |
| 10 | Favour Ofili | Nigeria | 57.51 | 55.51 | 1:53.02 |
| 11 | Deshana Skeet | Guyana | 56.85 | 56.72 | 1:53.57 |
| 12 | Lorena Itzel Rangel Batres | Mexico | 57.08 | 56.86 | 1:53.94 |
| 13 | Ola Buwaro | The Gambia | 58.37 | 56.63 | 1:55.00 |
| 14 | Jasneet Nijjar | Canada | 57.97 | 57.75 | 1:55.72 |
| 15 | Nataliia Dyshliuk | Ukraine | 57.67 | 58.06 | 1:55.73 |
| 16 | Alexandra Zalyubovskaya | Kazakhstan | 57.21 | 58.55 | 1:55.76 |
| 17 | Ana Costa | Portugal | 57.58 | 58.72 | 1:56.30 |
| 18 | Kinga Gacka | Poland | 58.30 | 58.27 | 1:56.57 |
| 19 | Wang You-hsuan | Chinese Taipei | 58.45 | 59.21 | 1:57.66 |
| 20 | Adina Cîrciogel | Romania | 57.76 | 1:00.06 | 1:57.82 |
| 21 | Serenia Ragatu | Fiji | 1:00.95 | 1:01.97 | 2:02.92 |
| | Daniella Deer | Jamaica | 1:00.12 | DNS | |
| | Megan Moss | Bahamas | 1:02.25 | DNS | |
| | Jiijo Hassan Mohamed | Somalia | 1:20.76 | DNS | |
| | Aissata Denn Conte | Guinea | DQ | DNS | |