| Entry List - for Event and Season Best - 16 July 2019 |
| Bib | Athlete | Year | Cat. | | SB |
| 14 | KARAM Yousef | 1993 | M | KUW KUWAIT | 44.84 |
| 15 | CEDENIO Machel | 1995 | M | TRI TRINIDAD & TOBAGO | 44.92 |
| 13 | MCDONALD Rusheen | 1992 | M | JAM JAMAICA | 45.25 |
| 16 | BAMIDELE Emmanuele | 1999 | M | NGR NIGERIA | 45.33 |
| 12 | IGBOKWE Obi | 1997 | M | USA UNITED STATES OF AMERICA | 45.35 |
| 5 | ALLEN Nathon | 1995 | M | JAM JAMAICA | 45.39 |
| 17 | GARDEO Isaacs | 1995 | M | RSA SOUTH AFRICA | 45.39 |
| 18 | FRANCIS Javon | 1994 | M | USA UNITED STATES OF AMERICA | 45.60 |
| 11 | OMELKO Rafal | 1989 | M | POL POLAND | 45.81 |
| 8 | BAKER Devaughin | 1996 | M | JAM JAMAICA | 45.90 |
| 6 | CHAMBERS Marcus | 1994 | M | USA UNITED STATES OF AMERICA | 46.07 |
| 3 | AMOS Nigel | 1994 | M | BOT BOTSWANA | 46.38 |
| 7 | TRICCA Michele | 1993 | M | ITA ITALY | 46.44 |
| | | | | RM056 G.A. FIAMME GIALLE | |
| 4 | HUSILLOS Oscar | 1993 | M | ESP SPAIN | 47.36 |
| 2 | ABDA Harun | 1990 | M | USA UNITED STATES OF AMERICA | 48.72 |
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