Federation · CZE
Czechia national best marks
Best marks by Czechia athletes in each event, compiled from the all-time lists we import. Derived national bests — not official national records (see note below).
14
Stored marks
10
Distinct marks shown
Men's 400m
Derived 14 Sep 2026
| # | Athlete | Mark | Date | Venue | Age |
|---|---|---|---|---|---|
| 1 | Pavel Maslák | 44.79 | 9 May 2014 | — | — |
| 2 | Pavel Maslák | 44.84 | 12 Aug 2013 | — | — |
| 3 | Pavel Maslák | 44.91 | 4 Aug 2012 | — | — |
| 3= | Pavel Maslák | 44.91 | 13 Aug 2013 | — | — |
| 3= | Pavel Maslák | 44.91 | 29 Aug 2013 | — | — |
| 6 | Pavel Maslák | 45.06 | 13 Aug 2016 | — | — |
| 7 | Pavel Maslák | 45.09 | 1 Jul 2015 | — | — |
| 8 | Pavel Maslák | 45.10 | 19 Aug 2012 | — | — |
| 8= | Pavel Maslák | 45.10 | 5 Aug 2017 | — | — |
| 10 | Pavel Maslák | 45.13 | 6 Jul 2013 | — | — |
| 10= | Pavel Maslák | 45.13 | 15 Jul 2016 | — | — |
| 12 | Pavel Maslák | 45.15 | 5 Aug 2012 | — | — |
| 13 | Pavel Maslák | 45.16 | 23 Aug 2015 | — | — |
| 14 | Pavel Maslák | 45.17 | 8 Jun 2012 | — | — |
Every mark in scope within the compiled depth. 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.