Historical World Slalom Records U21 Men & Women
| U21 Women Slalom | ||||||
| 30/11/2003 | Regina Jaquess | USA | 3.00/11.25/55 | U21 World Championships | Santiago | CHI |
| 08/01/2008 | Karina Nowlan | AUS | 3.00/10.75/55 | U21 World Championships | Santiago | CHI |
| 05/07/2019 | Jaimee Bull | CAN | 5,00/55/10.75 | U21 World Championships | Shalom Park Water Ski Site, Edmonton | CAN |
| U21 Men Slalom | ||||||
| 30/11/2003 | William Asher | CAN | 3.00/10.25/58 | U21 World Championships | Santiago | CHI |