| Bib | Athlete | Year | Cat. | | SB |
|---|
| | VAN NIEKERK Wayde | 1992 | M |  RSA SOUTH AFRICA | 43.03 |
| | GARCIA Samuel | 1991 | M |  ESP SPAIN | 45.82 |
| | SCOTTI Edoardo | 2000 | M |  ITA ITALY | 45.85 |
| | | | | BO011 C.S. CARABINIERI SEZ. ATLETICA | |
| | SNAITH Ben | 1995 | M |  GBR GREAT BRITAIN & N. IRELAND | 46.51 |
| | TRICCA Michele | 1993 | M | ITA ITALY | 47.01 |
| | | | | RM056 G.A. FIAMME GIALLE | |
| | KIJANOVIC Bosko | 2000 | M |  SRB SERBIA | 47.06 |
| | CASARICO Mattia | 1997 | M | ITA ITALY | 47.37 |
| | | | | MI077 CUS PRO PATRIA MILANO | |
| | FRANCESCHINI Alessandro | 1997 | M | ITA ITALY | 47.94 |
| | | | | VE471 ATL.BIOTEKNA MARCON | |
| | GRAIANI Vincente | 2001 | M |  GER GERMANY | 48.60 |
| | MELI Riccardo | 2001 | M | ITA ITALY | 48.63 |
| | | | | PA001 A.S.D. C.U.S. PALERMO | |
| | ESANU Cristian | 1995 | M |  SLO SLOVENIA | 48.76 |
| | LEONARDI Giuseppe | 1996 | M | ITA ITALY | 48.82 |
| | | | | BO011 C.S. CARABINIERI SEZ. ATLETICA | |
| | ROVERATO Mattia | 1997 | M | ITA ITALY | 49.37 |
| | | | | VI623 ASSOCIAZIONE ATLETICA N.E.VI. | |
| | SANTOMASO Giovanni | 2003 | M | ITA ITALY | 49.52 |
| | | | | BL041 A.S.D. GRUPPO SPORTIVO ASTRA | |
| | BERTOLDO Michele | 2001 | M | ITA ITALY | 49.78 |
| | | | | VI626 ATL.VICENTINA | |
| | GALOLU KANKANAMALAGE Vi | 1996 | M |  SRI SRI LANKA | 49.92 |
| | | | | RM555 A.S.D. ATLETICA FUTURA ROMA | |
|
