Which ages are competitive, and how is my child's age worked out?
Rule- Australia
- AusTriathlon
- Triathlon Australia
- Junior triathlon
- Ages 7-17
- 2026/27
- Parents
- Race Competition Rules
- Age cut-off: age is determined by age on 31 December during the season of the triathlon competition. (For Under 23, Junior and Youth draft-legal competition it is 31 December of the year of the coming World Triathlon Championship competition.)
- Non-competitive / novelty: the rules label Under 7 and ages 7 to 11 as "Non-Competitive/Novelty".
- Competitive: ages 12 and over are labelled "Competitive".
- Under 19 category: reserved for triathletes in the 7 to 19 years age groups.
- Draft-legal pathway: WT Youth is for competitors turning 14 and 15 in the World Triathlon competition year, and WT Junior for those turning 16 to 19, in each case endorsed by their state or territory triathlon association.
- AusTriathlon keeps national distance recognition for the 14-15 and 16-19 age groups at Sprint distance.
Source: AusTriathlon Race Competition Rules, June 2026, Appendices C, D and E.
Added 24 Oct 2026