Machel Cedenio of Trinidad and Tobago has made a .70 improvement this year and he has run the two fastest times this year.  He was 5th at the 2012 World Junior Championships.  Michael Cherry of USA has  had a similar development but hasn’t broken 46 since the end of May and finished third at US juniors. Cedenio ran his second fastest time at the beginning of July.  Tyler Brown set his pr to win the US junior meet in 45.74.

17 year-old Alexander L Sampao of Kenya set his best at the end of June with a time of 45.84.  Last year he was third at the World Youth Championships (46.78).  The winner of the World Youth Championships, Martin Manley of Jamaica (45.89), snuck up on the field to win title and as the 13th seed (46.24) this year he may again after running prs in the 100 (10.38) and 200 (20.57). 

Junior Men’s 400 (top 10 Performances, top 10 Performers)

WJR Steve Lewis US 43.87 1988

WJ MR Hamdan Odha Al-Bishi KSA 44.66 2000

Rank     Mark        Competitor             Nat         DOB   

  *1       45.23    Machel Cedenio         TTo      6 Sep 1995

             45.28    Cedenio

  *2       45.37    Michael Cherry          USA     23 Mar1995

  *3       45.74    Tyler Brown               USA     24 Mar1995

  *4       45.84A Alexander L Sampao  Ken      31 Dec1996

    5       45.91   Rabia Al Kawari          Qat    

  *6      45.93    Abbas Abubaker          Bur      17 May1996

            45.95    Cedenio

            45.96    Cherry

  *7      45.97A Berend Koekemoer     RSA     12 Jun 1995

            (10 Performances by 7 athletes)

  *8       46.02   Lamar Bruton-Grinnage USA 26 May1995

    9       46.10   Devante Lacy               USA

*10       46.11   Nathon Allen               Jam                  1995  

*10       46.11   Sonwabiso Skhosana   RSA      4 Jul 1995

* Competing

 2012 World Junior results

1 Luguelin Santos Dom 44.85

2 Arman Hall USA 45.39

3 Aldrich Bailey USA 45.52