| Entry List - for Event and Season Best - 16 July 2019 |
| Bib | Athlete | Year | Cat. | | SB |
| 5 | LATTIN Amere | 1997 | M | USA UNITED STATES OF AMERICA | 48.72 |
| 4 | ROBINSON Byron | 1995 | M | USA UNITED STATES OF AMERICA | 49.37 |
| 3 | NOZAWA Keisuke | 1991 | M | JPN JAPAN | 49.51 |
| 6 | HYDE Jaheel | 1997 | M | JAM JAMAICA | 49.57 |
| 2 | FREDERICKS Cornel | 1990 | M | RSA SOUTH AFRICA | 49.66 |
| 7 | RUGGERI Guillermo | 1992 | M | ARG ARGENTINA | 49.72 |
| 1 | MALIK James-king | 1999 | M | JAM JAMAICA | 50.06 |
|
|