This year's ball in Sywell, Northamptonshire, on May 22 has a "black tie with a muddy twist" dress code.
Tickets for the event cost from £60 and there will be a live band, three-course meal and casino.
Horsey girls aren't that bad really." It shouldn't be difficult to meet a like-minded person in the countryside, given that there is a structured calendar of rural social events, including races and point-to-points.
But according to Patricia Warren, a farmer's wife from Derbyshire who runs the Country Bureau, a rural introduction agency, the country dating scene can be bleak, whatever age you are.
"I'd never go to one on my own," Charlotte says, "but as long as I have a wingman, I'm fine." This is exactly the right approach, according to dating expert Mary Balfour.
"Jamie lives less than eight miles away but I'd never met him.
"The downside of hunt balls and race meets is they can be cliquey," Lucy says.
"We organise rural singles' events such as regional pub grub nights, sailing trips and an annual ball." More than 300 people, mainly in their forties and fifties, attended the Mud Lovers ball last year.
She's an attractive 31-year-old from Hungerford in Berkshire with a successful career as a three-day event rider and a busy social diary.
"When they ask me why I'm single, I never know how to respond," she says. Here in the country people wonder what's wrong with you.