| U21 Women Overall | |||||||||
| 30/11/2003 | Regina Jaquess | USA | 57.00 | 7000 | 47.7 | 2615.9 | U21 World Championships | Santiago | CHI |
| 01/11/2009 | Whitney McClintock | CAN | 56.00 | 8000 | 49.9 | 2750.3 | U21 World Championships | Chapala, Jalisco | MEX |
| 01/11/2009 | Whitney McClintock | CAN | 56.00 | 8000 | 49.9 | 2658.7 | U21 World Championships | Chapala, Jalisco | MEX |
| 05/07/2015 | Giannina Bonnemann | GER | 2.00/11.25 | 9130 | 47.9 | 2730.7 | U21 World Championships | Sesena | ESP |
| 07/07/2019 | Anna Gay | USA | 2.00/11.25 | 10530 | 41.5 | 2758.6 | U21 World Championships | Shalom Park Water Ski Site, Edmonton | CAN |
| U21 Men Overall | |||||||||
| 30/11/2003 | Jimmy Siemers | USA | 4.00/11.25 | 10680 | 69.0 | 2736.9 | U21 World Championships | Santiago | CHI |
| 30/11/2003 | Jimmy Siemers | USA | 4.00/11.25 | 10680 | 69.0 | 2696.3 | U21 World Championships | Santiago | CHI |
