Then the horse and rider complete a cross-country course four to five miles long with as many as 30 jumps.

Also, all riders wishing to compete must complete their "rookie requirements."

To win the first place, the rider and his horse must complete the course as quickly as possible without making any mistakes.

A rider must have completed every event in the omnium.

In some cases, few riders actually complete the course and results are judged on the distance that they manage to achieve.

There is usually a sequence that the horse and rider must complete.

Only 54 riders out of 197 completed the race.

The horses became so willing that riders completed the training course without reins.

Over the years, 32 riders have completed all three Grand Tours in one year.

The event last took place in 2009, when 413 riders completed the event.