kjenks said:
It went okay! The minotaur did exactly what I thought he would, which was charge the officer's horse, grapple it, then pin it, before attacking the rider himself, who had just had his magical longsword
greased out of his hands by the sorcerer! Fair to say that guy didn't last long (great fun though).
Elsewhere, the two PC gnomes really felt the pain from overrun attacks, bit I was struggling to capitalise on it because the party was
hasted and had almost as good movement rates as the horses. This coupled with the fact that they were less effective than the officer (no Ride-By Attack) meant that they weren't really a telling presence on the field. The most pain probably came from the mounted archers, who had little trouble staying out of range of the fray and peppering the PC's with multiple hits.
So, in the end, circumstances meant the fight wasn't as long or 'novel' as I'd hoped, but everyone agreed it was great fun and I did see a different kind of thinking on the battlefield. Next time I'll give the riders a little more expertise and a few different weapons and we'll see how it goes.
Thanks to everyone who replied!