| Short Course |
|
Men's 50m Butterfly |
|
|
18 years and under |
| WJR |
World Junior Record |
22.34 |
Andrei Minakov |
18 Dec 2020 |
2020 Russian National Championships |
| ACW |
WA All Comers |
23.77 |
Braga Verhage |
10 Sep 2015 |
2015 The West Australian Newspaper State Open & Age Short Course Championships |
| WAT |
WA All Time |
23.25 |
Tommaso D'Orsogna |
11 Aug 2009 |
2009 Telstra Australian Short Course Championships |
| RE |
Residential |
23.77 |
Braga Verhage |
10 Sep 2015 |
2015 The West Australian Newspaper State Open & Age Short Course Championships |
| CAT |
WA Country All Time |
25.44 |
Sean Alcorn |
6 Aug 2022 |
2022 Hancock Prospecting SWA State Open & Age SC Championships |
| CR |
Country Residential |
25.44 |
Sean Alcorn |
6 Aug 2022 |
2022 Hancock Prospecting SWA State Open & Age SC Championships |
