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Swimming SA
| Time | Date | Name | Team | Meet |
|---|---|---|---|---|
| 48.08 | Dec. 8, 2016 | Chad Le Clos | South African Swimming Federation | 13th FINA World Short Course Championships |
| 48.44 | Dec. 4, 2014 | Chad Le Clos | South African Swimming Federation | 12th FINA World Short Course Championships |
| 48.56 | Sept. 30, 2014 | Chad Le Clos | South African Swimming Federation | FINA/MASTBANK SWIMMING WORLD CUP |
| 48.59 | Sept. 1, 2014 | Chad Le Clos | South African Swimming Federation | FINA/MASTBANK SWIMMING WORLD CUP |
| 48.70 | Aug. 28, 2014 | Chad Le Clos | South African Swimming Federation | FINA/MASTBANK SWIMMING WORLD CUP |
| 48.82 | Dec. 13, 2012 | Chad Le Clos | South African Swimming Federation | 11th FINA World Short Course Championships |
| 49.60 | Oct. 7, 2012 | Chad Le Clos | South African Swimming Federation | FINA/Arena Swimming World Cup |
| 49.82 | Oct. 3, 2012 | Chad Le Clos | South African Swimming Federation | FINA/Arena Swimming World Cup |
| 50.19 | Nov. 7, 2009 | Lyndon FERNS | South African Swimming Federation | FINA/ARENA SWIMMING WORLD CUP SERIE 2 |
| 50.44 | Oct. 17, 2009 | Lyndon FERNS | South African Swimming Federation | FINA/ARENA SWIMMING WORLD CUP SERIE 1 |
| 51.81 | Nov. 2, 2008 | GARTH TUNE | South African Swimming Federation | FINA/ARENA SWIMMING WORLD CUP SERIE 4 |
| 52.19 | Oct. 18, 2008 | GARTH TUNE | South African Swimming Federation | FINA/ARENA SWIMMING WORLD CUP SERIE 2 |
| 53.65 | Oct. 11, 2008 | Sebastien Rousseau | South African Swimming Federation | FINA/ARENA SWIMMING WORLD CUP SERIE 1 |
| 54.48 | April 9, 2008 | Sebastien Rousseau | South African Swimming Federation | 9th FINA World Swimming Championships |