| Name | Gender | Appearances | Top Performance |
|---|---|---|---|
| Daniel Wilton | Male | 2 | 5th |
| Daniell Wilton | Male | 1 | 14th |
| Double Windycity Multisport | Male | 1 | 8th |
| Sharlene Winiata | Female | 2 | 11th |
| Dennis Winter | Male | 1 | 185th |
| Shaun Winter | Male | 1 | 178th |
| Sandy Winterton | Male | 20 | 5th |
| Anaia Wiparata | Female | 4 | 6th |
| Chris Withy | Male | 1 | 57th |
| Brent Wolf | Male | 3 | 7th |
| Simon Wolfgram | Male | 5 | 20th |
| Anna Wood | Female | 7 | 40th |
| Blane Wood | Male | 1 | 31st |
| Ella Wood | Female | 1 | 14th |
| Sally Wood | Female | 1 | 125th |
| Mike Woodborne | Male | 1 | 83rd |
| Simon Woods | Male | 19 | 7th |
| Vaughn Woods | Male | 1 | 14th |
| Gemma Woolcock | Female | 1 | 5th |
| Zara Woolcock | Female | 4 | 2nd |
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