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).
19
Stored athletes
17
Distinct marks shown
Men's 400mH
Derived 14 Sep 2026
| # | Athlete | Mark | Date | Venue | Age |
|---|---|---|---|---|---|
| 1 | Kriss Akabusi | 47.82 | 6 Aug 1992 | — | — |
| 2 | David Greene | 47.84 | 6 Jul 2012 | — | — |
| 3 | David Hemery | 48.12 | 15 Oct 1968 | — | — |
| 4 | Chris Rawlinson | 48.14 | 11 Aug 1999 | — | — |
| 5 | Tyri Donovan | 48.21 | 17 Sep 2025 | — | — |
| 6 | Alastair Chalmers | 48.30 | 8 Jun 2025 | — | — |
| 7 | Seamus Derbyshire | 48.42 | 21 Jun 2025 | — | — |
| 8 | Jake Minshull | 48.53 | 8 Jul 2026 | — | — |
| 9 | Matthew Douglas | 48.54 | 28 Aug 2003 | — | — |
| 10 | Alan Pascoe | 48.59 | 30 Jun 1975 | — | — |
| 10= | Joshua Faulds | 48.59 | 25 May 2025 | — | — |
| 12 | Jack Green | 48.60 | 13 Jul 2012 | — | — |
| 13 | Nathan Woodward | 48.71 | 3 Jul 2011 | — | — |
| 14 | Jonathan Ridgeon | 48.73 | 6 Sep 1992 | — | — |
| 15 | Niall Flannery | 48.80 | 17 Jun 2014 | — | — |
| 16 | Rhys Williams | 48.84 | 17 Jul 2013 | — | — |
| 17 | Alex Knibbs | 48.89 | 14 Jul 2024 | — | — |
| 17= | Efekemo Okoro | 48.89 | 24 Aug 2024 | — | — |
| 19 | Anthony Borsumato | 48.90 | 14 Jul 2002 | — | — |
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.