I know there is a specific class at Strathallan for 5 year olds, but wondered what other BE events run such classes? Specifically looking at Scotland and the North of England.
The PAVO series is th eonly one specifically designating ages - 5 yos run over pre-novice courses. These sections tend to be competitive and the top 25% qualify for the championships at Tweseldown in October, which carry a £1000 first prize. I'm pretty sure there are no more 5 yo qualifiers left this year. Then there is the Burghley Young Event horse series, which seems to have a lot of qualifiers "up north" - well, at least from here! 5 yos are allowed to compete in all BE classes, you don't have to stick to the age classes like 4yos do.