Arnold wrote:What could you possibly do as a competitor that would require you to have 3rd party liability insurance?
I think the most likely scenario is in an urban race - an inattentive competitor runs out in front of a cyclist, the cyclist swerves to avoid them, and as a result the cyclist has a nasty fall.
The cyclist (or their surviving relatives) might well be inclined to sue the uninsured competitor if they thought the competitor had enough assets to make it worthwhile.
Pretty unlikely, though - I imagine in most cases suing an uninsured competitor wouldn't be worth the cost, and the plaintiff would probably stand a better chance of getting some money out of suing the (insured) organising club.
[Disclaimer: I am not a lawyer]