To “have a field day” is to have a day where everything goes right, and usually implies that there was a lot of fun to be had. This is one of the reasons I chose “Field Day” as the name for my teaching and training work – because riding should usually go right and be a lot of fun. The best riding happens when we are “in the flow” which is that quality of relaxed focus where real excellence lies.
The Field Day tagline “Soft elbow, rhythmic leg, relaxed mind” is an extension of that thought.
You might have noticed that some of the banners on this site are not strictly pictures of English riding. There are some other flavors of horse sports too. Good riding is good riding and most of it translates from one sport to the next when a person simply keeps an open mind. A field day is a field day, whether the horn on the saddle is there to dally off or to speak to the hounds.