Until the beginning of this year Ashton Eaton had the best 400 hurdles ever for a decathlete over 8000 points - 48.69 sec. Ashton Eatons training in 2014 for (only 400 H) was certainly in favour of his 45.00 a year later.
But Owens already did 45.07 last year and did this year the best 400 Hurdles for an 8000 + and even 7000 + decathlete. Better than Eaton : 48.26 Baton Rouge 13 05 2023.
If this 400 hurdles training favours Ayden Owens, then can we expect him to run a 400 under 45.00?
This table shows athletes that participated in a decathlon over 7000 points. Their best 400 hurdles ever and the year as well as in column 4 their best decathlon ever.
| 
 Time 48.26/2023  | 
 Athlete  | 
 Nation PUR  | 
 Best Decathlon 8532/2022  | 
| 
 48.67/2009  | 
 Mahou Suguimati  | 
 BRA  | 
 7055/2012  | 
| 
 48.69/2014  | 
 USA  | 
 9045/2015  | 
|
| 
 48.86/1992  | 
 Stephane Caristan  | 
 FRA  | 
 7570/1992  | 
| 
 49.10/2003  | 
 Sebastien Maillard  | 
 FRA  | 
 7562/2001  | 
| 
 49.21/1998  | 
 Victor Houston  | 
 BAR  | 
 7777/1997  | 
| 
 49.29/2001  | 
 Duane Ladejo  | 
 GBR  | 
 7635/1998  | 
| 
 49.32/1974  | 
 Bruce Field  | 
 AUS  | 
 7078/1972  | 
| 
 49.38/2012  | 
 Brent Larue  | 
 SLO  | 
 7284/2007  | 
| 
 49.38/2012  | 
 JAP  | 
 8180/2016  | 
|
| 
 49.54/2009  | 
 Dale Garland  | 
 GBR  | 
 7413/2006  | 
| 
 49.59/1983  | 
 Carlos Azulay  | 
 ESP  | 
 7410/1987  | 
| 
 49.66/1998  | 
 CZE  | 
 8314/2000  | 
|
| 
 49.83/2017  | 
 USA  | 
 8084/2011  | 
|
| 
 49.7/1969  | 
 Carl Wood  | 
 USA  | 
 7450/1973  | 
| 
 50.35/2006  | 
 USA  | 
 7581/2011  | 
|
| 
 
  | 
 
  | 
 
  | 
 
  | 
| 
 A 48.12/1968  | 
 David Hemery  | 
 GBR  | 
 6760/1969  | 
| 
 48.52/1972  | 
 David Hemery  | 
 GBR  | 
 6760/1969  | 
Corrections are always welcome.