| 1 | Falzini Daniele | 1998 | Aurelia Nuoto ASD | 04'03''23 | 664 |  |  | |
50m 27.53 (27.53) 100m 58.29 (30.76) [58.29] 150m 1:29.42 (31.13) 200m 2:01.03 (31.61) [1:02.74] 300m 3:04.15 [1:03.12] 400m 4:03.23 [59.08] |
| 2 | Da Mario Davide | 1998 | Nuoto Nautilus - Roma | 04'13''01 | 590 | | | |
50m 29.56 (29.56) 100m 1:00.87 (31.31) [1:00.87] 150m 1:32.70 (31.83) 200m 2:04.70 (32.00) [1:03.83] 300m 3:08.93 [1:04.23] 400m 4:13.01 [1:04.08] |
| 3 | Filosi Stefano | 1998 | Aurelia Nuoto ASD | 04'14''85 | 577 | | | |
50m 29.15 (29.15) 100m 1:00.48 (31.33) [1:00.48] 150m 1:32.55 (32.07) 200m 2:04.95 (32.40) [1:04.47] 300m 3:10.29 [1:05.34] 400m 4:14.85 [1:04.56] |
| 4 | Parretta Gianluca | 1998 | Sistemi Integrati Sport ASD - Roma | 04'17''13 | 562 | | | |
50m 28.69 (28.69) 100m 59.79 (31.10) [59.79] 150m 1:31.17 (31.38) 200m 2:03.15 (31.98) [1:03.36] 300m 3:09.09 [1:05.94] 400m 4:17.13 [1:08.04] |
| 5 | Pagliacci Damiano | 1998 | Juventus Nuoto - Roma | 04'20''36 | 541 | | | |
50m 29.15 (29.15) 100m 1:02.75 (33.60) [1:02.75] 150m 1:36.43 (33.68) 200m 2:10.15 (33.72) [1:07.40] 300m 3:17.81 [1:07.66] 400m 4:20.36 [1:02.55] |
| 6 | Olivieri Alessio | 1998 | SS Lazio Nuoto | 04'21''04 | 537 | | | |
50m 27.95 (27.95) 100m 59.37 (31.42) [59.37] 150m 1:31.56 (32.19) 200m 2:04.91 (33.35) [1:05.54] 300m 3:13.34 [1:08.43] 400m 4:21.04 [1:07.70] |
| 7 | Pernarella Cristian | 1998 | Roma Nuoto SSD | 04'25''19 | 512 | | | |
50m 30.34 (30.34) 100m 1:03.26 (32.92) [1:03.26] 150m 1:37.15 (33.89) 200m 2:11.39 (34.24) [1:08.13] 300m 3:19.72 [1:08.33] 400m 4:25.19 [1:05.47] |
| 8 | Cito Filippo | 1998 | SS Lazio Nuoto | 04'26''47 | 505 | | | |
50m 30.19 (30.19) 100m 1:02.67 (32.48) [1:02.67] 150m 1:35.80 (33.13) 200m 2:08.97 (33.17) [1:06.30] 300m 3:17.59 [1:08.62] 400m 4:26.47 [1:08.88] |
