Bib | Athlete | Year | Cat. | | SB |
| BLOOMFIELD Akeem | 1997 | M | JAM JAMAICA | 43.94 |
| ALLEN Nathon | 1995 | M | JAM JAMAICA | 44.13 |
| MCDONALD Rusheen | 1992 | M | JAM JAMAICA | 45.25 |
| SCOTTI Edoardo | 2000 | M | BO011 C.S. CARABINIERI SEZ. ATLETICA | 45.84 |
| BAKER Devaughn | 1996 | M | JAM JAMAICA | 45.90 |
| MANLEY Martin | 1997 | M | JAM JAMAICA | 46.16 |
| LEONARDI Giuseppe | 1996 | M | BO011 C.S. CARABINIERI SEZ. ATLETICA | 46.49 |
| BENEKE Pieter | 1990 | M | RSA SOUTH AFRICA | 46.51 |
| BARNES Andrew | 1988 | M | RSA SOUTH AFRICA | 46.56 |
| JAMES-KING Malik | 1999 | M | JAM JAMAICA | 47.07 |
| FRANCESCHINI Alessandro | 1997 | M | VE471 ATL.BIOTEKNA MARCON | 47.94 |
| FUSARI Matteo | 1998 | M | BG795 BERGAMO STARS ATLETICA | 48.35 |
| PARLOV Mateo | 1995 | M | CRO05 AK ZAGREB | 48.98 |
| NERALIC Hrvoje | 2000 | M | CRO CROATIA | 49.38 |
| POGOREVC Jaka | 1998 | M | SLO01 ATLETSKI KLUB SLOVENJ GRADEC | 49.42 |
| BABIC Dominik | 2001 | M | CRO09 ATHLETIC CLUB KVARNER | 49.63 |
| BECEHELI Valentino | 2003 | M | CRO CROATIA | 49.73 |
| GIOVANATTO Cristiano | 1997 | M | UD030 ATLETICA MALIGNANI LIBERTAS UD | 49.81 |
| FURLANIC Timothy | 1999 | M | SLO02 AK KOPER | 50.30 |
| CHIARVESIO Andrea | 2001 | M | UD030 ATLETICA MALIGNANI LIBERTAS UD | 50.62 |
| ZUCCA Francesco | 2002 | M | TS544 SPORTIAMO | 50.66 |
| BISORTOLE Simone | 2000 | M | VI626 ATL.VICENTINA | 50.66 |
| KONCINA Luka | 1994 | M | SLO06 ATLETSKO DRUSTVO MASS | 50.67 |
| KNAP Kristof | 1991 | M | SLO06 ATLETSKO DRUSTVO MASS | 50.83 |
| MASUCCI Lorenzo Cristof | 1994 | M | TS044 TRIESTE ATLETICA | 50.93 |
| NOVOSEL Nikola | 1999 | M | CRO01 AK DINAMO ZAGREB | 51.15 |
| LA BIANCA Lorenzo | 1997 | M | TS099 POLISPORTIVA TRIVENETO TRIESTE | 51.37 |
| FRAPORTTI Liberato | 2001 | M | CRO06 ASK SPLIT | 51.85 |
| IEREP Matteo | 1997 | M | TS044 TRIESTE ATLETICA | 52.15 |
| VOJNOVIC Ivan | 2003 | M | CRO05 AK ZAGREB | 52.20 |
| PARLANTE Andrea | 1994 | M | TS044 TRIESTE ATLETICA | 52.24 |
| CLEMENTE Mattia | 2003 | M | UD503 GEMONATLETICA S.R.L. DIL. | 52.45 |
| DE MARCHI Riccardo | 1999 | M | PN039 ATL BRUGNERA PN FRIULINTAGLI | 52.80 |
| BEBIC Tonci | 2003 | M | CRO06 ASK SPLIT | 52.92 |
| PETRONIO Diego | 2001 | M | TS544 SPORTIAMO | 53.16 |
| MORENO MANZANARES Kevin | 1998 | M | TV352 ATLETICA SAN BIAGIO | 53.18 |
| VANON Massimiliano | 2001 | M | GO050 ATLETICA GORIZIA | 54.10 |
| VIANELLO Setota | 2001 | M | TV348 SILCA ULTRALITE VITTORIO V.TO | 54.60 |
| BAHCIC Jakob | 2002 | M | SLO02 AK KOPER | 55.37 |
| DEMONTIS Mirko | 1990 | M | TV354 TREVISATLETICA | 56.57 |
| MANDICH Moreno | 1970 | M45 | TS544 SPORTIAMO | 57.86 |
| RUCLI Nicola | 1972 | M45 | UD526 GRUPPO SPORTIVO NATISONE | 58.22 |
| PETRUSSA Paolo | 1968 | M50 | UD526 GRUPPO SPORTIVO NATISONE | 1:00.49 |
| CHIASALOTTI Arturo | 1992 | M | TS099 POLISPORTIVA TRIVENETO TRIESTE | |
| CHIASALOTTI Piero | 1992 | M | TS099 POLISPORTIVA TRIVENETO TRIESTE | |
| TISSOT Lorenzo Augusto | 1994 | M | PG014 ATL.CAPANNE PRO LOCO ATHL.TEAM | |
| LIMO Timothy Kipkorir | 1987 | M | KEN KENYA | |
| NICOSIA Agostino | 1997 | M | UD030 ATLETICA MALIGNANI LIBERTAS UD | |
|