Organisers of the Burnham Market Horse Trials have had to call off the event on its final day.
Heavy rain in Norfolk overnight means it is not safe for the competition to take place.
The three-day Easter weekend event attracts some of the top riders from around the world.
Organisers announced the decision to abandon the competition earlier today (Saturday) following inspections of the ground.
Riders from around the world have been at the three-day Burnham Market International Horse Trials in North Norfolk.
Yesterday they took on the cross country course, after earlier dressage and show jumping events.
Around 8,000 spectators have braved a mixture of weather conditions.
For many of the riders, the event is about getting ready for a busy European season.
The organisers of the Burnham Market Horse Trials in Norfolk say this weekend's event attracted record crowds. Gate numbers were up over 15% on previous years.
Not only did visitors enjoy top level sport, with riders from 22 countries and many Badminton Horse Trials bound combinations having a last run, there was also a wide range of trade stands and children's entertainment.
Event Organiser Alec Lochore said;
"It was great to see so many people both watching the action and shopping in the tradestands. Several competitors remarked to me how much they enjoyed riding in front of such enthusiastic spectators."
Oliver Townend won in two classes, one of them on Armada, his ride at Badminton Horse Trials in two weeks time. He commented;
"I always enjoy Burnham Market. It's a perfect event to set the horses up for the rest of the season. It also seems to be a lucky event for me, which makes it even more enjoyable." **
**Oliver has now won the Three Star at Burnham Market an impressive seven times.
One of the most prestigious sporting events in the region gets underway today.
The Burnham Market International Horse Trials start today and the event has attracted a number of elite riders including William Fox-Pitt, Pippa Funnell and Norfolk's girl Piggy French.
Millions of pounds worth of cars have been driving through North Norfolk as part of a bi-annual classic and super car rally.
Organised by the Hoste Arms in Burnham Market, vehicles both vintage and modern arrived from all over the country.
Click below to watch a report by ITV News Anglia's Kate Prout
Some of the world's top horseriders are preparing for the Olympic Games by competing at an event in Norfolk. Team GB hopefuls including Zara Phillips and Piggy French will be at the Burnham Market International Horse Trials.
The competition, which started yesterday and runs until Saturday, includes dressage, show jumping and cross country.