| Long Course |
|
Men's 50m Butterfly |
|
|
18 years and under |
| WJR |
World Junior Record |
22.96 |
Diogo Matos Ribeiro |
3 Sep 2022 |
2022 8th FINA World Junior Swimming Championships |
| ACW |
WA All Comers |
24.20 |
Ryan Coetzee |
31 Jan 2014 |
2014 BHP Billiton Aquatic Super Series |
| WAT |
WA All Time |
23.70 |
Garth Kates |
6 Jul 2008 |
2008 Telstra Grand Prix II |
| RE |
Residential |
24.60 |
Garth Kates |
3 Jan 2006 |
2005-2006 SunSmart State Open & Junior Championships |
| CAT |
WA Country All Time |
25.97 |
Brodie Hedges |
15 Jan 2012 |
2012 Swimming WA Country Championships |
| CR |
Country Residential |
25.97 |
Brodie Hedges |
15 Jan 2012 |
2012 Swimming WA Country Championships |
