The 88th CAS Championships ( 2019 ) were won by Knox Grammar closely followed by Trinity Grammar. 8 new records were broken.
Full list of results click 2019 CAS championship results
New CAS Records
| Event Number | Event | Time | Name | School |
| 30 | Boys 16 100 Free 5.40pm Championship | 52.67 | Joseph Hamson | Knox Grammar School |
| 35 | Boys 17 200 Medley 5.59pm Relay Championship | 1:49.69 | T Peknice, D Zhang, J Johnson, O Wang | Knox Grammar School |
| 39 | Boys 13&U 200 Medley 6.15pm Relay Championship | 2:03.56 | H Hoang, M Chen, Z Nguyen, J Wang | Trinity Grammar School |
| 47 | Boys 14 50 Back 6.34 Championship | 28.90 | Tane Bidois | Knox Grammar School |
| 49 | Boys 13 50 Back 6.38 Championship | 30.60 | Hayden Hoang | Trinity Grammar School |
| 66 | Boys 17 200 Free 7.22pm Championship | 1:55.60 | Tyson Bujak-Upton | Knox Grammar School |
| 69 | Boys 14 200 Free 7.34pm Relay Championship | 1:45.91 | T Bidois, K Lilienthal, B Allen, C Anderson | Knox Grammar School |
| 71 | Boys 16 200 Free 7.42pm Relay Championship | 1:38.68 | M Robertson, A Lee, L Filby, S Hohne | Trinity Grammar School |
All CAS Swimming records can be found here