| 1 | Zazzeri Lorenzo | 1994 | Rari Nantes Florentia | 00'49''75 | 838 |  |  | |  |  |
50m 23.69 (23.69) 100m 49.75 (26.06) [49.75] |
| 2 | Megli Filippo | 1997 | Rari Nantes Florentia | 00'50''26 | 813 | | | | | |
50m 24.12 (24.12) 100m 50.26 (26.14) [50.26] |
| 3 | Nanetti Ettore | 2003 | Gymnasium Pordenone | 00'52''97 | 694 | | | |
50m 25.79 (25.79) 100m 52.97 (27.18) [52.97] |
| 4 | Muro Marco | 2000 | Pallanuoto Trieste SSD | 00'53''28 | 682 | | | |
50m 25.78 (25.78) 100m 53.28 (27.50) [53.28] |
| 5 | Cocianni Andrea | 2003 | Gorizia Nuoto ASD | 00'53''95 | 657 | | | |
50m 26.13 (26.13) 100m 53.95 (27.82) [53.95] |
| 6 | Del Tedesco Alessandro | 1992 | Arca Team ASD | 00'54''15 | 650 | | | |
50m 26.51 (26.51) 100m 54.15 (27.64) [54.15] |
| 7 | Sangiorgio Francesco | 1999 | Gemonese Nuoto | 00'54''38 | 641 | | | |
50m 25.85 (25.85) 100m 54.38 (28.53) [54.38] |
| 8 | Scarabat Stefano | 2001 | Pallanuoto Trieste SSD | 00'54''82 | 626 | | | |
50m 26.05 (26.05) 100m 54.82 (28.77) [54.82] |
| 9 | Zerjal Manuel | 2002 | US Triestina Nuoto | 00'54''95 | 622 |
| 10 | Rongadi Isaia | 2004 | San Vito Nuoto | 00'54''97 | 621 | | | |
50m 26.71 (26.71) 100m 54.97 (28.26) [54.97] |
| 11 | Scheriani Riccardo | 2000 | Rari Nantes Trieste | 00'55''26 | 611 | | | |
50m 26.31 (26.31) 100m 55.26 (28.95) [55.26] |
| 12 | Bincoletto Davide | 2002 | UISP Nuoto Cordenons | 00'55''36 | 608 | | | |
50m 26.61 (26.61) 100m 55.36 (28.75) [55.36] |
| 13 | Crevatin Andrea | 1995 | Tergeste Nuoto Altura ASD | 00'55''46 | 605 | | | |
50m 26.85 (26.85) 100m 55.46 (28.61) [55.46] |
| 14 | Mestroni Federico | 1999 | Arca Team ASD | 00'55''94 | 589 | | | |
50m 26.81 (26.81) 100m 55.94 (29.13) [55.94] |
| 15 | Bonelli Ismaele | 2003 | Pallanuoto Trieste SSD | 00'56''01 | 587 | | | |
50m 26.66 (26.66) 100m 56.01 (29.35) [56.01] |
| 16 | Bartoli Lorenzo | 2001 | Rari Nantes Trieste | 00'56''59 | 569 | | | |
50m 25.89 (25.89) 100m 56.59 (30.70) [56.59] |
| 17 | Ricci Leonardo | 2002 | Rari Nantes Trieste | 00'56''98 | 557 | | | |
50m 27.70 (27.70) 100m 56.98 (29.28) [56.98] |
| 18 | Trevisiol Samuele | 2004 | CUS Udine ASD | 00'57''52 | 542 | | | |
50m 27.42 (27.42) 100m 57.52 (30.10) [57.52] |
| 19 | Burelli Gianluca Tommaso | 2004 | Arca Team ASD | 00'57''75 | 535 | | | |
50m 27.33 (27.33) 100m 57.75 (30.42) [57.75] |
| 20 | Petronio Giulio | 2004 | Rari Nantes Trieste | 00'58''23 | 522 | | | |
50m 27.87 (27.87) 100m 58.23 (30.36) [58.23] |
| 21 | Dolic Igor | 2004 | PadovaNuoto | 00'58''26 | 522 | | | |
50m 28.60 (28.60) 100m 58.26 (29.66) [58.26] |
| 22 | Tanzi Davide | 2004 | Gymnasium Pordenone | 00'58''35 | 519 | | | |
50m 27.64 (27.64) 100m 58.35 (30.71) [58.35] |
| 23 | Crappi Marek | 2002 | UISP Nuoto Cordenons | 00'58''57 | 513 | | | |
50m 27.73 (27.73) 100m 58.57 (30.84) [58.57] |
| 24 | Joli Alessandro | 2004 | Rari Nantes Trieste | 00'59''01 | 502 | | | |
50m 27.56 (27.56) 100m 59.01 (31.45) [59.01] |
| 25 | Grion Elia | 2004 | CUS Udine ASD | 00'59''08 | 500 | | | |
50m 28.47 (28.47) 100m 59.08 (30.61) [59.08] |
