| 1 | Marchand Leon | 2002 | FRA France | 00'51''00 | 902 | |  | |
25m 10.65 (10.65) 50m 23.79 (13.14) 75m 38.17 (14.38) 100m 51.00 (12.83) [51.00] |
|     | Ponti Noe' | 2001 | SUI Switzerland | 00'51''00 | 902 | |  | |
25m 10.50 (10.50) 50m 23.21 (12.71) 75m 38.56 (15.35) 100m 51.00 (12.44) [51.00] |
| 3 | Ceccon Thomas | 2001 | ITA Italia | 00'51''15 | 894 | |  | |  |  |
25m 10.39 (10.39) 50m 22.87 (12.48) 75m 38.28 (15.41) 100m 51.15 (12.87) [51.15] |
| 4 | Kim Jihun | 2000 | KOR Republic Of Korea | 00'52''00 | 851 | |  | |
25m 10.68 (10.68) 50m 23.71 (13.03) 75m 39.14 (15.43) 100m 52.00 (12.86) [52.00] |
| 5 | Seto Daiya | 1994 | JPN Japan | 00'52''42 | 830 | |  | |
25m 11.04 (11.04) 50m 24.07 (13.03) 75m 38.97 (14.90) 100m 52.42 (13.45) [52.42] |
| 6 | Andrew Michael | 1999 | USA United States | 00'52''54 | 825 | |  | |
25m 10.60 (10.60) 50m 23.50 (12.90) 75m 38.98 (15.48) 100m 52.54 (13.56) [52.54] |
| 7 | Corbeau Caspar James | 2001 | NED Netherlands | 00'52''87 | 809 | |  | |
25m 11.03 (11.03) 50m 24.82 (13.79) 75m 39.72 (14.90) 100m 52.87 (13.15) [52.87] |
| 8 | Noh Minkyu | 2007 | KOR Club Swimmers | 00'53''13 | 797 | |  | |
25m 11.03 (11.03) 50m 23.92 (12.89) 75m 39.71 (15.79) 100m 53.13 (13.42) [53.13] |