Federation · GBR
Great Britain & NI national best marks
Best mark per athlete by Great Britain & NI athletes in each event, compiled from the all-time lists we import. Derived national bests — not official national records (see note below).
11
Stored athletes
10
Distinct marks shown
Women's 400mH
Derived 14 Sep 2026
| # | Athlete | Mark | Date | Venue | Age |
|---|---|---|---|---|---|
| 1 | Sally Gunnell | 52.74 | 19 Aug 1993 | — | 27 |
| 2 | Emily Newnham | 53.33 | 12 Aug 2026 | — | — |
| 3 | Perri Shakes-Drayton | 53.67 | 26 Jul 2013 | — | — |
| 4 | Natasha Danvers | 53.84 | 20 Aug 2008 | — | — |
| 5 | Lina Nielsen | 54.04 | 11 Aug 2026 | — | — |
| 6 | Eilidh Doyle | 54.09 | 15 Jul 2016 | — | — |
| 6= | Jessie Knight | 54.09 | 28 May 2022 | — | — |
| 8 | Anita Neil | 54.20 | 7 Jul 2026 | — | — |
| 9 | Meghan Beesley | 54.52 | 23 Aug 2015 | — | — |
| 10 | Gowry Retchakan | 54.63 | 3 Aug 1992 | — | — |
| 11 | Jessica Turner | 54.77 | 29 May 2021 | — | — |
One mark per athlete — the athlete's best while representing Great Britain & NI. Equal marks share a rank ("1=" style). An athlete with marks for two nations appears under each nation represented at the time (e.g. Obikwelu under Nigeria and Portugal).
About this derivation
These lists are derived from the marks in our database — including the complete legal all-time lists imported from alltime-athletics.com — grouped by the nation the athlete was representing at each mark. They are not official national records: federations ratify national records under their own eligibility rules, and some marks here may not qualify.