| 1 | Spina Brian | 1998 | Esseci Nuoto SSD | 02'19''87 | 639 |  |  | |
50m 31.37 (31.37) 100m 1:06.28 (34.91) [1:06.28] 150m 1:42.43 (36.15) 200m 2:19.87 (37.44) [1:13.59] |
| 2 | Belig Xavier | 1997 | Rari Nantes Florentia | 02'25''37 | 569 | | | |
50m 33.40 (33.40) 100m 1:10.49 (37.09) [1:10.49] 150m 1:48.35 (37.86) 200m 2:25.37 (37.02) [1:14.88] |
| 3 | Guarino Tommaso | 1999 | Esseci Nuoto SSD | 02'25''66 | 565 | | | |
50m 33.24 (33.24) 100m 1:10.22 (36.98) [1:10.22] 150m 1:47.07 (36.85) 200m 2:25.66 (38.59) [1:15.44] |
| 4 | Bartoloni Christian | 1998 | Azzurra Nuoto Prato | 02'27''20 | 548 | | | |
50m 33.23 (33.23) 100m 1:10.78 (37.55) [1:10.78] 150m 1:49.15 (38.37) 200m 2:27.20 (38.05) [1:16.42] |
| 5 | Pinzuti Alessandro | 1999 | Sport Cortona ASD | 02'29''13 | 527 | | | |
50m 31.53 (31.53) 100m 1:08.50 (36.97) [1:08.50] 150m 1:48.40 (39.90) 200m 2:29.13 (40.73) [1:20.63] |
| 6 | Carpitelli Lorenzo | 1999 | Certaldo Nuoto ASD | 02'29''17 | 526 | | | |
50m 34.23 (34.23) 100m 1:12.46 (38.23) [1:12.46] 150m 1:50.80 (38.34) 200m 2:29.17 (38.37) [1:16.71] |
| 7 | Cito Leonardo | 1999 | FlorentiaNuotoClub SSD | 02'32''86 | 489 | | | |
50m 33.10 (33.10) 100m 1:11.59 (38.49) [1:11.59] 150m 1:52.03 (40.44) 200m 2:32.86 (40.83) [1:21.27] |
| 8 | Pintucci Duccio | 1999 | FlorentiaNuotoClub SSD | 02'33''49 | 483 | | | |
50m 32.72 (32.72) 100m 1:10.46 (37.74) [1:10.46] 150m 1:50.79 (40.33) 200m 2:33.49 (42.70) [1:23.03] |
| 9 | Alidori Giulio Hideo | 1999 | Nuoto Life Style ASD | 02'34''60 | 473 | | | |
50m 33.51 (33.51) 100m 1:11.98 (38.47) [1:11.98] 150m 1:52.52 (40.54) 200m 2:34.60 (42.08) [1:22.62] |
| 10 | Scardigli Francesco | 1997 | Certaldo Nuoto ASD | 02'37''16 | 450 | | | |
50m 34.35 (34.35) 100m 1:14.22 (39.87) [1:14.22] 150m 1:54.92 (40.70) 200m 2:37.16 (42.24) [1:22.94] |
| 11 | Bianchini Jacopo | 1999 | Certaldo Nuoto ASD | 02'37''65 | 446 | | | |
50m 34.27 (34.27) 100m 1:13.89 (39.62) [1:13.89] 150m 1:55.28 (41.39) 200m 2:37.65 (42.37) [1:23.76] |
