More informal groupings also exist for riders local to each other or even particular models of vehicles.
After the first day's dressage the world class field was led by a local rider from Oxford.
And, among the local riders, there didn't seem to be anybody available.
The man with the umbrella was showing his ticket, as he always did, though it wasn't necessary for local riders.
It would be lovely if we could produce another top local rider and these three boys could fit the bill.
Over 350 international and local riders took part in the event.
Now, when King trains, local riders become his captain.
Then he was talked into riding a race in Brooklyn and finished second against good local riders.
It is a popular spot for picnickers, dog-walkers and local riders.
The first race was back in 2002 when only a few local riders entered, but the popularity has increased rapidly ever since.