| 100m Freestyle | 51.51 | DENISOV Miron |  RUS | 22 Jul 2017 | Samsun, Turkiye |
| 100m Freestyle | 52.19 | GERMANO Luca |  ITA | 09 Sep 2009 | Taipei, Taiwan |
| 100m Freestyle | 52.42 | GERMANO Luca | ITA | 09 Sep 2009 | Taipei, Taiwan |
| 100m Freestyle | 52.47 | PARKIN Terence |  RSA | 10 Jan 2005 | Melbourne, Australia |
| 100m Freestyle | 52.56 | GRIGOREV Dmitry | RUS | 18 Jul 1997 | Copenhagen, Denmark |
| 100m Freestyle | 52.64 | KEALY John |  IRL | 17 Jul 1997 | Copenhagen, Denmark |
| 100m Freestyle | 52.66 | WILSON Stuart |  USA | 13 Jul 1985 | Los Angeles, United States |
| 100m Freestyle | 54.59 | WILSON Stuart | USA | 13 Jul 1985 | Los Angeles, United States |
| 100m Freestyle | 55.09 | GERSHWIND Reed | USA | 13 Jul 1985 | Los Angeles, United States |
| 100m Freestyle | 55.59 | GERSHWIND Reed | USA | 24 Jul 1981 | Köln, Germany |
| 100m Freestyle | 55.74 | FLOAT Jeffrey | USA | 18 Jul 1977 | Bucharest, Romania |
| 100m Freestyle | 57.3 | RICE Ronald | USA | 24 Jul 1973 | Malmö, Sweden |
| 100m Freestyle | 1:00.0 | SAVINSKY Frederick | USA | 10 Aug 1969 | Belgrade, Serbia |
| 100m Freestyle | 1:00.7 | LOCHKAREV Vladimir |  URS | 10 Aug 1969 | Belgrade, Serbia |
| 100m Freestyle | 59.4 | SAVINSKY Frederick | USA | 10 Aug 1969 | Belgrade, Serbia |
| 100m Freestyle | 1:01.8 | WöHLER Joachim |  FRG | 28 Jun 1965 | Washington, United States |
| 100m Freestyle | 1:02.1 | WöHLER Joachim | FRG | 28 Jun 1965 | Washington, United States |
| 100m Freestyle | 1:02.2 | PETERSEN John |  DEN | 08 Aug 1961 | Helsinki, Finland |
| 100m Freestyle | 1:03.3 | KUN Mihaly |  HUN | 29 Aug 1957 | Milan, Italy |
| 100m Freestyle | 1:04.2 | KUN Mihaly | HUN | 27 Aug 1957 | Milan, Italy |
| 100m Freestyle | 1:05.5 | LARSEN Finn | DEN | 18 Aug 1953 | Brussels, Belgium |
| 100m Freestyle | 1:06.0 | TALMONE Emile |  FRA | 22 Aug 1931 | Nuremberg, Germany |
| 100m Freestyle | 1:09.2 | REUSCHKE Herbert |  GER | 18 Aug 1928 | Amsterdam, Netherlands |
| 100m Freestyle | 1:31.4 | DE MARCHI Roberto | ITA | 12 Aug 1924 | Paris, France |