The rider had only recently taken up sidesaddle and the horse is blind in one eye!!
Michaela Bowling soars high with sidesaddle - Horses International
The first sidesaddle steeplechase since 1921 was held in Feb of this year, the sport seems to be making a comeback
Its one of those things that should carry a 'You don't have to be mad to do this but it helps' plaque.