New fight idea

I had a new idea for a new kind of fight. I was wondering if I could get some suggestions on how to refine it.

Each girl...

- Naked from the waist up.

- Riding a horse.

- Carrying a riding crop.

The setting...

- Bridge over a shallow river just wide enough for the horses to pass each other.

The fight...

- The girls charge from opposite ends of the bridge and, as they pass by, strike at each other with their riding crops. They continue this until either one girl is unhorsed or signals her surrender by tying a white handkerchief to the end of her riding crop and waving it in the air.

Its not new though, its gladiator style javellin fights

I really haven't seen this new combat yet.