| Name | Gender | Appearances | Top Performance |
|---|---|---|---|
| Kate Jamieson | Female | 1 | 47th |
| Phil Jamieson | Male | 7 | 8th |
| Shane Janssen | Male | 1 | 14th |
| Bo Jarrat | Female | 1 | 15th |
| Gary Jarvis | Male | 14 | 6th |
| Joshua Jarvis | Male | 1 | 16th |
| Kristin Jarvis | Female | 12 | 7th |
| Oscar Jarvis | Male | 2 | 5th |
| Kyla Jasperse | Female | 1 | 13th |
| Victor Javier Rodriguez | Male | 1 | 7th |
| Janet Jeanes | Female | 1 | 17th |
| Bevan Jefferies | Male | 1 | 14th |
| Sarah Jenkins | Female | 3 | 70th |
| Julie JENKINSON | Female | 3 | 38th |
| Kent Jenkinson | Male | 1 | 2nd |
| Rob Jenkinson | Male | 5 | 13th |
| Team Jenni Blyleven | Male | 1 | 38th |
| Paul Jensen | Male | 1 | 32nd |
| Team Jeremy & Mike | Male | 1 | 5th |
| Kevin Jeruusalamy | Male | 1 | 13th |
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