Over the past two weekends I have photographed foxhunting opening meets for two clubs. When I bought the D500, it was with these events in mind. I am photographing riders on horses jumping barriers. There is a new rider jumping every 1.5-2 seconds - and often two riders jumping at the same time. This requires a burst every 1.5 seconds, then picking up and focusing on the next rider for another burst. Usually there are 30-60 riders including photos of the ones going through a gate rather than jumping. With the D800E at 4 fps, the buffer always fills slowing the frame rate to 1 fps. The D500 was designed for this kind of photography and the buffer never fills.
Note that while it is called foxhunting, they are often chasing coyotes rather than foxes. They prefer not to catch the fox and call off the hounds before the fox is caught or injured.
Here is a series of images of a rider falling off her horse because the horse refused to jump. This is an experienced rider and she was unhurt - just some minor bruises. She got back on her horse and kept riding. The action of the series shows the value of the high frame rate of the D500.
I used two cameras for the event and took 1250 images. My primary lens was the Nikon 70-200 f/2.8 VRII used on both cameras. I used Group AF rather than Dynamic because Group biases in favor of the nearest subject. My in focus rate was very high - probably 95% or more. Generally I was using Manual exposure mode with Auto ISO.
I've added a couple of files at the end to show what the event is like.
Finally, I use a freeware program called WEGA2 to summarize shooting data. I've attached a screenprint so you can see the range of apertures, shutter speeds, and focal lengths I used with the D500. Keep in mind these are FX equivalents. The images are just the top rated images that are available for sale.