(a) SLSA competition events shall be conducted in the following age group/gender categories:
Under 8 – Under 15 years (one year categories)
Under 17 years
Under 19 years
Under 21 years
Under 23 years
Over 24 years
Open
Senior
Masters (30 years plus)
Female only
Male only
Mixed (specified or non-specified numbers of male and female competitors up to and including all males/females)