| Pos. | Lane | Bib | Athlete | Year | Cat. | | Mark |
| 1 | 6 | 172 | FILIPPINI Riccardo | 2000 | M | ITA ITALY | 48.78 |
| | | | | | | ATL.STUD. RIETI ANDREA MILARDI | |
| 2 | 4 | 337 | ADAMOLI Simone | 2000 | M | ITA ITALY | 49.69 |
| | | | | | | S.S. LAZIO ATLETICA LEGGERA | |
| 3 | 3 | 141 | FIORIBELLO Domenico | 1995 | M | ITA ITALY | 49.72 |
| | | | | | | A.S.D. INTESATLETICA | |
| 4 | 6 | 175 | FEDELE Vincenzo | 2000 | M | ITA ITALY | 50.10 |
| | | | | | | ATL.STUD. RIETI ANDREA MILARDI | |
| 5 | 4 | 178 | TOMMASINI Andrea | 1995 | M | ITA ITALY | 50.39 |
| | | | | | | SPORTRACE | |
| 6 | 4 | 169 | CACCIAMANI Lorenzo | 1994 | M | ITA ITALY | 50.43 |
| | | | | | | A.S.D. ATLETICA FUTURA ROMA | |
| 7 | 3 | 163 | BIANCHI Giovanni | 2000 | M | ITA ITALY | 50.58 |
| | | | | | | A.S.ATHLON BASTIA | |
| 8 | 1 | 159 | DONNINI Michele | 1997 | M | ITA ITALY | 50.72 |
| | | | | | | ATLETICA FIRENZE MARATHON S.S. | |
| 9 | 5 | 182 | GARZIA Matteo | 2000 | M | ITA ITALY | 50.88 |
| | | | | | | A.S.D. ATLETICA FUTURA ROMA | |
| 10 | 3 | 173 | PENGILI Marko | 1999 | M | ITA ITALY | 50.94 |
| | | | | | | ATL.STUD. RIETI ANDREA MILARDI | |
| 11 | 2 | 174 | CANNARSA Michele | 1996 | M | ITA ITALY | 51.07 |
| | | | | | | ATL.STUD. RIETI ANDREA MILARDI | |
| 12 | 6 | 358 | TRUSIANI Antonio | 1991 | M | ITA ITALY | 51.11 |
| | | | | | | A.S.D. ATLETICA FUTURA ROMA | |
| 13 | 1 | 164 | RIDOLFI Lorenzo | 1987 | M | ITA ITALY | 51.22 |
| | | | | | | A.S.ATHLON BASTIA | |
| 14 | 5 | 170 | CACCIAMANI Federico | 1998 | M | ITA ITALY | 51.37 |
| | | | | | | A.S.D. ATLETICA FUTURA ROMA | |
| 15 | 4 | 331 | FARISI Hamza | 1995 | M | MAR MOROCCO | 51.67 |
| | | | | | | ASS.ATL.LIBERTAS ORVIETO | |
| 16 | 3 | 176 | FEDERICI Damiano | 2000 | M | ITA ITALY | 51.93 |
| | | | | | | ATLETICA TIVOLI | |
| 17 | 6 | 168 | UBALDI Federico | 1992 | M | ITA ITALY | 52.06 |
| | | | | | | TIRRENO ATLETICA CIVITAVECCHIA | |
| 18 | 2 | 162 | DEGLI ESPOSTI Marco | 1984 | M | ITA ITALY | 52.08 |
| | | | | | | A.S.ATHLON BASTIA | |
| 19 | 5 | 374 | MOGETTI Federico | 2002 | M | ITA ITALY | 52.22 |
| | | | | | | ATLETICA WINNER FOLIGNO | |
| 20 | 2 | 184 | DI PALMA Matteo | 1987 | M | ITA ITALY | 52.39 |
| | | | | | | ASD AICS HADRIA PESCARA | |
| 21 | 5 | 177 | CANALI Giordano | 1999 | M | ITA ITALY | 52.72 |
| | | | | | | A.S.D. ATLETICA FUTURA ROMA | |
| 22 | 2 | 89 | BRUNI Tommaso | 1999 | M | ITA ITALY | 52.87 |
| | | | | | | UISP ATLETICA SIENA | |
| 23 | 4 | 373 | MANCINI Nicola | 1991 | M | ITA ITALY | 52.94 |
| | | | | | | ASS.ATL.LIBERTAS ORVIETO | |
| 24 | 5 | 160 | DINI Lorenzo | 2002 | M | ITA ITALY | 53.11 |
| | | | | | | ALGA ETRUSCATLETICA | |
| 25 | 4 | 90 | SANTANIELLO Antonio | 2000 | M | ITA ITALY | 54.16 |
| | | | | | | UISP ATLETICA SIENA | |
| 26 | 3 | 166 | MARTINO Giuseppe | 2000 | M | ITA ITALY | 54.54 |
| | | | | | | ASS.ATL.LIBERTAS ORVIETO | |
| 27 | 3 | 167 | HARRAT Samir | 2002 | M | ITA ITALY | 55.14 |
| | | | | | | G.S. AMLETO MONTI | |
| 28 | 2 | 183 | FORTUNA Simone | 1994 | M | ITA ITALY | 55.32 |
| | | | | | | ASD ROMATLETICA FOOTWORKS | |
| 29 | 5 | 181 | CANALI Federico | 2002 | M | ITA ITALY | 57.63 |
| | | | | | | A.S.D. ATLETICA FUTURA ROMA | |
| 30 | 6 | 327 | RENZI Daniele | 1991 | M | ITA ITALY | 1:00.82 |
| | | | | | | PLANET SPORT RUNNING | |
| 31 | 6 | 345 | CARUSI Riccardo | 1989 | M | ITA ITALY | 1:00.89 |
| | | | | | | A.S.D. ATLETICA FUTURA ROMA | |
| | 2 | 147 | CURCUIANU Victor | 1999 | M | ROU ROMANIA | DNS |
| | | | | | | ACSI CAMPIDOGLIO PALATINO | |
|