| Final 20:25 | | time | | L | | 1. Femke Bol |  Netherlands | 50.63s | EL, NR | 6 | | 2. Justyna Święty-Ersetic |  Poland | 51.41s | | 5 | | 3. Jodie Williams |  Great Britain | 51.73s | PB | 1 | | 4. Phil Healy |  Ireland | 51.94s | PB | 4 | | 5. Lieke Klaver | Netherlands | 52.03s | | 3 | | 6. Andrea Miklós |  Romania | 52.10s | | 2 |
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Semi-Finals - Friday, 5th March 19:33 | | First 2 from each Semi advanced to Final. |
| Semi 1 | | time | | | 7. Phil Healy | Ireland | 52.41s | Q | | 8. Andrea Miklós | Romania | 52.41s | Q | | 9. Amarachi Pipi | Great Britain | 52.54s | SB | | 12.Lisanne de Witte | Netherlands | 53.10s | | | 13.Kateryna Klymyuk |  Ukraine | 53.10s | | | 14.Hanna Mikhailava |  Belarus | 53.10s | |
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| Semi 2 | | time | | | 2. Justyna Święty-Ersetic | Poland | 51.34s | Q, NR | | 3. Lieke Klaver | Netherlands | 52.09s | Q | | 5. Anna Ryzhykova | Ukraine | 52.11s | PB | | 6. Jessie Knight | Great Britain | 52.22s | | | 11.Agnė ŀerkšnienė |  Lithuania | 53.09s | | | 18.Rebecca Borga |  Italy | 54.23s | |
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| Semi 3 | | time | | | 1. Femke Bol | Netherlands | 51.17s | Q | | 4. Jodie Williams | Great Britain | 52.09s | Q, PB | | 10.Léa Sprunger |  Switzerland | 52.64s | | | 15.Modesta Justė Morauskaitė | Lithuania | 53.20s | | | 16.Irini Vasiliou |  Greece | 53.31s | | | 17.Cynthia Bolingo Mbongo |  Belgium | 53.74s | |
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Heats - Friday, 5th March 11:22 | | First 2 from each Heat and next 4 Best times advanced to Semi-Finals. |
| Heat 1 | | time | | | 16.Femke Bol | Netherlands | 52.77s | Q | | 19.Hanna Mikhailava | Belarus | 52.96s | Q | | 21.Laura Müller |  Germany | 53.03s | | | 28.Tereza Petržilková |  Czechia | 53.46s | | | 37.Andrea Jiménez |  Spain | 54.34s | | | 38.Silke Lemmens | Switzerland | 54.48s | |
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| Heat 2 | | time | | | 13.Lieke Klaver | Netherlands | 52.74s | Q | | 15.Anna Ryzhykova | Ukraine | 52.76s | Q | | 26.Sophie Becker | Ireland | 53.31s | | | 32.Camille Laus | Belgium | 53.68s | | | 35.Eleonora Marchiando | Italy | 53.70s | | | 36.Krystsina Muliarchik | Belarus | 53.93s | |
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| Heat 3 | | time | | | 2. Justyna Święty-Ersetic | Poland | 52.06s | Q | | 3. Jessie Knight | Great Britain | 52.17s | Q, SB | | 5. Cynthia Bolingo Mbongo | Belgium | 52.27s | q, SB | | 10.Kateryna Klymyuk | Ukraine | 52.70s | q, PB | | 24.Cátia Azevedo |  Portugal | 53.28s | SB | | 25.Maja Ćirić |  Serbia | 53.28s | SB |
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| Heat 4 | | time | | | 6. Jodie Williams | Great Britain | 52.35s | Q | | 8. Andrea Miklós | Romania | 52.57s | Q | | 12.Alice Mangione | Italy | 52.73s | PB | | 27.Susanne Walli |  Austria | 53.41s | PB | | 31.Aauri Lorena Bokesa | Spain | 53.64s | | | 34.Iveta Putalová |  Slovakia | 53.69s | SB |
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| Heat 5 | | time | | | 1. Phil Healy | Ireland | 52.00s | Q | | 4. Léa Sprunger | Switzerland | 52.25s | Q | | 7. Modesta Justė Morauskaitė | Lithuania | 52.52s | q, PB | | 11.Rebecca Borga | Italy | 52.72s | q | | 30.Hanne Maudens | Belgium | 53.63s | |
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| Heat 6 | | time | | | 9. Ama Pipi | Great Britain | 52.63s | Q, SB | | 17.Lisanne de Witte | Netherlands | 52.82s | Q, =SB | | 18.Lada Vondrová | Czechia | 52.83s | | | 22.Corinna Schwab | Germany | 53.06s | | | 39.Evelin Nádházy |  Hungary | 55.11s | |
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| Heat 7 | | time | | | 14.Irini Vasiliou | Greece | 52.76s | Q, PB | | 20.Agnė ŀerkšnienė | Lithuania | 53.00s | Q | | 23.Amandine Brossier |  France | 53.23s | | | 29.Anastasiia Bryzgina | Ukraine | 53.50s | | | 33.Sharlene Mawdsley | Ireland | 53.68s | |
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