Okay kiddo, so the French National Stayers Championships is a competition where horses run for a long time, like a really long time! These horses are called stayers because they have to run for a long distance, usually more than two miles.
The competition is held in France and it happens every year. Many horses and jockeys from all over the world come to France to compete. The goal is to see who can run the longest distance the fastest.
The competition is divided into different heats, almost like rounds. Horses have to run in these heats and the fastest and strongest horses from each heat go on to the next round. The final round is called the championship round and that's where the best horses compete to see who will be crowned the winner.
People love watching this competition because it shows how strong and powerful horses can be, and how dedicated and skilled jockeys are at controlling and guiding these majestic animals.
So basically, it's a big competition where horses run a long distance and people love watching it.